The DOI matches its Crossref record; 132 of the 157 references it cites were found in a registry or an index.
From RECIST to PERCIST: Evolving Considerations for PET Response Criteria in Solid Tumors
Open accessAbstract
UNLABELLED: The purpose of this article is to review the status and limitations of anatomic tumor response metrics including the World Health Organization (WHO) criteria, the Response Evaluation Criteria in Solid Tumors (RECIST), and RECIST 1.1. This article also reviews qualitative and quantitative approaches to metabolic tumor response assessment with (18)F-FDG PET and proposes a draft framework for PET Response Criteria in Solid Tumors (PERCIST), version 1.0. METHODS: PubMed searches, including searches for the terms RECIST, positron, WHO, FDG, cancer (including specific types), treatment response, region of interest, and derivative references, were performed. Abstracts and articles judged most relevant to the goals of this report were reviewed with emphasis on limitations and strengths of the anatomic and PET approaches to treatment response assessment. On the basis of these data and the authors' experience, draft criteria were formulated for PET tumor response to treatment. RESULTS: Approximately 3,000 potentially relevant references were screened. Anatomic imaging alone using standard WHO, RECIST, and RECIST 1.1 criteria is widely applied but still has limitations in response assessments. For example, despite effective treatment, changes in tumor size can be minimal in tumors such as lymphomas, sarcoma, hepatomas, mesothelioma, and gastrointestinal stromal tumor. CT tumor density, contrast enhancement, or MRI characteristics appear more informative than size but are not yet routinely applied. RECIST criteria may show progression of tumor more slowly than WHO criteria. RECIST 1.1 criteria (assessing a maximum of 5 tumor foci, vs. 10 in RECIST) result in a higher complete response rate than the original RECIST criteria, at least in lymph nodes. Variability appears greater in assessing progression than in assessing response. Qualitative and quantitative approaches to (18)F-FDG PET response assessment have been applied and require a consistent PET methodology to allow quantitative assessments. Statistically significant changes in tumor standardized uptake value (SUV) occur in careful test-retest studies of high-SUV tumors, with a change of 20% in SUV of a region 1 cm or larger in diameter; however, medically relevant beneficial changes are often associated with a 30% or greater decline. The more extensive the therapy, the greater the decline in SUV with most effective treatments. Important components of the proposed PERCIST criteria include assessing normal reference tissue values in a 3-cm-diameter region of interest in the liver, using a consistent PET protocol, using a fixed small region of interest about 1 cm(3) in volume (1.2-cm diameter) in the most active region of metabolically active tumors to minimize statistical variability, assessing tumor size, treating SUV lean measurements in the 1 (up to 5 optional) most metabolically active tumor focus as a continuous variable, requiring a 30% decline in SUV for "response," and deferring to RECIST 1.1 in cases that do not have (18)F-FDG avidity or are technically unsuitable. Criteria to define progression of tumor-absent new lesions are uncertain but are proposed. CONCLUSION: Anatomic imaging alone using standard WHO, RECIST, and RECIST 1.1 criteria have limitations, particularly in assessing the activity of newer cancer therapies that stabilize disease, whereas (18)F-FDG PET appears particularly valuable in such cases. The proposed PERCIST 1.0 criteria should serve as a starting point for use in clinical trials and in structured quantitative clinical reporting. Undoubtedly, subsequent revisions and enhancements will be required as validation studies are undertaken in varying diseases and treatments.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
In the citing paper
“SUVmax of normal background tissues, including the liver and mediastinal blood pool are commonly used as references to define the disease and assess tumor response to therapy.[7]”
From Intrapatient variability of 18F-FDG uptake in normal tissues (2022) · cites this paper as [7]
Experimental — accuracy not yet measuredThe source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
In the citing paper
“However, it has been demonstrated that inter-rater agreement in response assessment with [18F]FDG-PET in non-small cell lung cancer or metastatic breast cancer can be considerably improved through the use of the target lesion SULpeak (PERCIST 1.0 criteria) in comparison with a subjective assessment [194,214,215].”
From Influences on PET Quantification and Interpretation (2022) · cites this paper as [194]
Experimental — accuracy not yet measured
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
New response evaluation criteria in solid tumours: revised RECIST guideline (version 1.1)
Eisenhauer, E. A., Therasse, P., Bogaerts, J., Schwartz, L. H., Sargent, D., Ford, R., Dancey, J., Arbuck, S., Gwyther, S., Mooney, M., et al. (2009) · European Journal of Cancer · doi:10.1016/j.ejca.2008.10.026 · Cited by 29,534 · cited 2×
“If tumors other than these 5 progress unequivocally, progression has occurred (39,40).”
BackgroundNew Guidelines to Evaluate the Response to Treatment in Solid Tumors
Therasse, P., Arbuck, S. G., Eisenhauer, E. A., Wanders, J., Kaplan, R. S., Rubinstein, L., Verweij, J., Van Glabbeke, M., van Oosterom, A. T., Christian, M. C., et al. (2000) · JNCI: Journal of the National Cancer Institute · doi:10.1093/jnci/92.3.205 · Cited by 15,660
Sorafenib in advanced hepatocellular carcinoma
Llovet, J. M., Ricci, S., Mazzaferro, V., Hilgard, P., Gane, E., Blanc, J.-F., de Oliveira, A. C., Santoro, A., Raoul, J.-L., Forner, A., et al. (2008) · New England Journal of Medicine · doi:10.1056/nejmoa0708857 · Cited by 13,097
Sorafenib in advanced hepatocellular carcinoma.
Spinzi, G., & Paggi, S. (2008) · New England Journal of Medicine · doi:10.1056/nejmc081780 · Cited by 7,303 · cited 2×
“Similar findings of prolonged life, with limited antitumor size response by RECIST, have been seen in hepatomas treated by sorafenib (44,45).”
BackgroundRevised response criteria for malignant lymphoma.
Cheson, B. D., Pfistner, B., Juweid, M., Gascoyne, R., Specht, L., Horning, S., Coiffier, B., Fisher, R. I., Hagenbeek, A., Zucca, E., et al. (2007) · Journal of Clinical Oncology · doi:10.1200/jco.2006.09.2403 · Cited by 4,537 · cited 5×
“Progression in the lungs, particularly in the presence of potential inflammation or infection while a patient is on treatment, should be viewed with great caution, as discussed in the revised response criteria in lymphoma (32,33).”
BackgroundMethodInfluentialCheson, B. D., Horning, S., Coiffier, B., Shipp, M., Fisher, R. I., Connors, J. M., Lister, T., Vose, J., Grillo-López, A., Hagenbeek, A., et al. (1999) · Journal of Clinical Oncology · doi:10.1200/jco.1999.17.4.1244 · Cited by 3,210
Ishiwata, T., Cho, K., Ishiwata, S., Fujii, T., Kawahara, K., Kudo, M., Uchida, E., Tajiri, T., & Naito, Z. (2005) · doi:10.1097/01.mpa.0000193687.52588.d4 · Cited by 2,420
Young, H. E., Baum, R. P., Cremerius, U., Herholz, K., Hoekstra, O. S., Lammertsma, A. A., Pruim, J., & Price, P. (1999) · European Journal of Cancer · doi:10.1016/s0959-8049(99)00229-4 · Cited by 1,716
Choi, H., Charnsangavej, C., Faria, S., Macapinlac, H., Burgess, M., Patel, S. R., Chen, L. L., Podoloff, D., & Benjamin, R. (2007) · Journal of Clinical Oncology · doi:10.1200/jco.2006.07.3049 · Cited by 1,508 · cited 7×
“Additional anatomic characteristics of GIST, such as the development of mural nodules, but not necessarily with tumor growth because of the predominantly cystic nature of the tumors, are indicative of progression and of a poor outcome (48,49).”
BackgroundInfluentialJuweid, M., Stroobants, S., Hoekstra, O., Mottaghy, F., Dietlein, M., Guermazi, A., Wiseman, G., Kostakoglu, L., Scheidhauer, K., Buck, A., et al. (2007) · Journal of Clinical Oncology · doi:10.1200/jco.2006.08.2305 · Cited by 1,377 · cited 4×
“Progression in the lungs, particularly in the presence of potential inflammation or infection while a patient is on treatment, should be viewed with great caution, as discussed in the revised response criteria in lymphoma (32,33).”
BackgroundInfluential
Research works printed but not linked: 23
- 1981, Cancer Clin Trials., 4, 451
- 1988, J Nucl Med., 29, 421
- 2006, J Nucl Med., 47, 901
- 2007, J Nucl Med., 48, 19S
- 2006, J Nucl Med., 47, 1059
- 10.1002/cncr.24060 · DOI
- 2007, J Nucl Med., 48, 36S
- 2005, J Nucl Med., 46, 983
- 2006, J Nucl Med., 47, 14
- 1990, J Nucl Med., 31, 369
- 2004, J Nucl Med., 45, 1519
- 10.1158/0008-5472.CAN-06-2030 · DOI
- 2004, J Am Coll Surg., 199, 1
- 1999, J Nucl Med., 40, 1771
- 1995, J Nucl Med., 36, 252
- 2004, J Nucl Med., 45, 784
- 1994, J Nucl Med., 35, 1308
- 10.1200/JCO.2006.06.8999 · DOI
- 2006, J Nucl Med., 47, 603
- 1993, J Nucl Med., 34, 773
- 2004, J Nucl Med., 45, 17
- 2001, J Nucl Med., 42, 1605
- 2001, J Nucl Med., 42, 1596
Cited by
Sorted by citations
Items 601–700 of 1,041
Vaz, S. C., Groheux, D., van Nijnatten, T. V., Antunovic, L., Cardoso, F., Mottaghy, F., Cardoso, M., Riedl, C., de Geus-Oei, L. D., & Ulaner, G. (2024) · European Journal of Nuclear Medicine and Molecular Imaging · doi:10.1007/s00259-024-07042-9 · Cited by 3
“Response to therapy on [18 F]FDG PET is often analyzed with PERCIST criteria, which define categories of complete metabolic response (CMD), partial metabolic response (PMD), stable metabolic disease (SMD), and progressive metabolic disease (PMD) [1].”
Roth, S., Wilson, K., Ramsay, R. G., Mitchell, C., Sampurno, S., Pham, T., Kong, J. C. H., Wong, S. Q., Heriot, A., Deva, S., et al. (2024) · Heliyon · doi:10.1016/j.heliyon.2024.e41364 · Cited by 3
“The following secondary endpoints were examined: changes in immunological and pathological markers in tumour tissue, changes in fluorodeoxyglucose (FDG) positron emission tomography-computed tomography (PET-CT) images,[28] changes in carcinoembryonic antigen (CEA) [30].”
Atasever, F., Satıcı, C., Akyel, R., Ceran, İ. F., Azaklı, D., Koçal, F. E. Ç., & Sökücü, S. (2024) · Respiratory Medicine · doi:10.1016/j.rmed.2024.107854 · Cited by 3
Young, A., Pantel, A., Kiani, M., Doot, R., Bagheri, S., Pryma, D., Farwell, M., Li, S.-H., Lee, H.-J. S., Schubert, E., et al. (2024) · Journal of Nuclear Medicine · doi:10.2967/jnumed.124.268254 · Cited by 3
“The 1 cm 3 sphere SUV peak was calculated on each image frame within a spheric volume of interest placed over tumor, referencing CT and prior breast imaging ( 21 ).”
Should new organ involvement be included in Response Evaluation Criteria in PSMA Imaging?
Kaplan, İ., Kömek, H., Can, C., Akdeniz, N., Güzel, Y., Kepenek, F., Şenol, A., Ileri, S., Karaoğlan, H., Solmaz, I., et al. (2024) · Annals of Nuclear Medicine · doi:10.1007/s12149-024-01954-0 · Cited by 3
“Developed to complement the anatomical criteria (RECIST), the PET Response Criteria in Solid Tumors (PERCIST) proposes an evaluation of treatment response based on metabolic changes [9].”
Yu, J.-Y., Chen, C.-W., Lu, M., Fang, X., Li, J., Zhu, M., Li, N., Yuan, X.-H., Han, Y., Wang, L., et al. (2024) · International Journal of Surgery · doi:10.1097/js9.0000000000001604 · Cited by 3
“While RECIST 1.1 response is the standard for assessing treatment response in a variety of clinical contexts [30,31] , its limitations are increasingly recognized, particularly its inability to detect early metabolic changes within tumors that precede size reduction after cytotoxic therapies [32] .”
InfluentialSchüler, M., Hense, J., Darwiche, K., Michels, S. Y. F., Hautzel, H., Kobe, C., Lueong, S., Metzenmacher, M., Herold, T., Zaun, G., et al. (2024) · Journal of Nuclear Medicine · doi:10.2967/jnumed.123.266979 · Cited by 4
“The term metabolic response describes a reduction in tumor metabolic activity by treatment as detected by sequential 18 F-FDG PET scanning ( 9 ).”
MethodYang, L.-M., Wang, H.-J., Li, S., Gan, G., Deng, W.-W., Chang, Y., & Zhang, L.-F. (2024) · World Journal of Gastroenterology · doi:10.3748/wjg.v30.i11.1533 · Cited by 3
“The efficacy of the WHO solid tumor evaluation criteria[11] was used to evaluate the efficacy of the treatment.”
Comprehensive literature review of oral and intravenous contrast-enhanced PET/CT: a step forward?
Metrard, G., Cohen, C., & Bailly, M. (2024) · Frontiers in Medicine · doi:10.3389/fmed.2024.1373260 · Cited by 3
“Positron Emission Tomography (PET) is a molecular imaging technique that enhances diagnostic performance (2), therapeutic response monitoring (3), prognosis evaluation (4, 5) and modifies the management of patients with hematological (6) or solid malignancy (7).”
BackgroundUeki, Y., Otsuka, H., Otani, T., Kasai, R., Otomi, Y., Ikemitsu, D., Azane, S., Kunikane, Y., Bando, T., Matsuda, N., et al. (2024) · Japanese Journal of Radiology · doi:10.1007/s11604-024-01529-z · Cited by 3
“The PET Response Criteria In Solid Tumors (PERCIST), which builds upon the Response Evaluation Criteria in Solid Tumors (RECIST) used to determine the therapeutic efficacy of tumors, was established in 2009 and is widely used in clinical practice [15–17].”
Role of PET/Computed Tomography in Gastric and Colorectal Malignancies.
Khandelwal, Y., Parihar, A. S., Sistani, G., Ramirez-Fort, M., Zukotynski, K., & Subramaniam, R. (2024) · PET Clinics · doi:10.1016/j.cpet.2023.12.004 · Cited by 3
Patient factors affecting 18F FDG uptake in children.
Debnath, P., & Trout, A. T. (2024) · Clinical imaging · doi:10.1016/j.clinimag.2024.110093 · Cited by 3
Zhang, Y., Hu, Y.-X., Zhao, S., & Huang, R. (2024) · Clinical Medicine Insights: Oncology · doi:10.1177/11795549231225419 · Cited by 3
“27”
Backgroundvan der Hiel, B., Aalbersberg, E. A., van den Eertwegh, A. J. M., der Veen, B. J. D. W., Stokkel, M. P. M., López‐Yurda, M., Boellaard, R., Kapiteijn, E., Hospers, G. A. P., Aarts, M. J. B., et al. (2023) · Clinical Nuclear Medicine · doi:10.1097/rlu.0000000000004988 · Cited by 3
18FDG PET/CT and Lung Cancer: Beaconhouse for Treating Oncologists.
Zaman, M., & Fatima, N. (2023) · Journal of the College of Physicians and Surgeons--Pakistan : JCPSP · doi:10.29271/jcpsp.2023.12.1341 · Cited by 3
Prognostic impact of post-treatment FDG PET/CT in anal canal cancer: a prospective study.
Bailleux, C., Zwarthoed, C., Evesque, L., Baron, D., Scouarnec, C., Bénézery, K., Chardin, D., Jaraudias, C., Château, Y., Gal, J., et al. (2023) · Radiotherapy and Oncology · doi:10.1016/j.radonc.2023.109905 · Cited by 3
Kairemo, K., Gouda, M. A., Buschhorn, L., Wahida, A., Macapinlac, H. A., Anderson, P. M., & Subbiah, V. (2023) · ESMO Open · doi:10.1016/j.esmoop.2023.101575 · Cited by 3
“FDGe PET/CT-based response criteria have been developed for use in solid tumors, namely PET Response Criteria in Solid tumors (PERCIST).(16,17) PERCIST has been suggested in”
MethodGroheux, D., Ulaner, G., & Hindié, E. (2023) · Clinical and translational imaging · doi:10.1007/s40336-023-00584-2 · Cited by 3
“Different criteria for evaluating the therapeutic response to FDG-PET/CT have been applied; the main criteria being the EORTC criteria published in 1999 [114] and the PER-CIST criteria published in 2009 by Wahl and colleagues [115].”
Takeuchi, S., Hirata, K., Magota, K., Watanabe, S., Moku, R., Shiiya, A., Taguchi, J., Ariga, S., Goda, T., Ohhara, Y., et al. (2023) · EJNMMI Research · doi:10.1186/s13550-023-01019-9 · Cited by 3
Abler, D., Courlet, P., Dietz, M., Gatta, R., Girard, P., Munafo, A., Wicky, A., Jreige, M., Guidi, M., Latifyan, S., et al. (2023) · JCO Clinical Cancer Informatics · doi:10.1200/cci.22.00126 · Cited by 3
“22 Both rely on longitudinal measurements of tumor size or quanti fi cation of tumor metabolism from imaging modalities such as computed tomography (CT), PET, or a combination of both (PET/CT).”
MethodSuto, H., Inui, Y., & Okamura, A. (2023) · Frontiers in Oncology · doi:10.3389/fonc.2023.1158797 · Cited by 3
Tsujimoto, M., Fukushima, A., Kawai, H., Watanabe, M., Tanahashi, S., Sarai, M., & Toyama, H. (2023) · Nuclear medicine communications · doi:10.1097/mnm.0000000000001680 · Cited by 3
Kaira, K., Yamaguchi, O., Naruse, I., Umeda, Y., Honda, T., Watanabe, S., Ichikawa, K., Yanagisawa, S., Kasahara, N., Higuchi, T., et al. (2023) · Cancer Imaging · doi:10.1186/s40644-023-00538-x · Cited by 3
“In our previous study, the PET Response Criteria in Solid Tumors (PERCIST) was adopted as a therapeutic response criterion for 18F-FDG PET [5].”
MethodPreclinical PET Imaging of Tumor Cell Death following Therapy Using Gallium-68-Labeled C2Am
Bulat, F., Hesse, F., Attili, B., Solanki, C., Mendichovszky, I. A., Aigbirhio, F., Leeper, F., Brindle, K., & Neves, A. A. (2023) · Cancers · doi:10.3390/cancers15051564 · Cited by 3
“These can be detected, for example, using PET measurements of uptake of the glucose analog [18F]fluoro-D-deoxyglucose (18F-FDG) and guidelines for its use in assessing treatment response have been published (PET Response Evaluation Criteria in Solid Tumors (PERCIST) [3]).”
MethodImmune checkpoint inhibition: a future guided by radiology
Khan, F., Jones, K. I., & Lyon, P. C. (2023) · British Journal of Radiology · doi:10.1259/bjr.20220565 · Cited by 4
Novelties from the Joint EANM/SNMMI/ANZSNM Guidelines on Immunotherapy
Lopci, E., Castello, A., & Filippi, L. (2023) · Cancer Biotherapy and Radiopharmaceuticals · doi:10.1089/cbr.2022.0091 · Cited by 3
Kaida, H., Yasuda, T., Shiraishi, O., Kato, H., Kimura, Y., Hanaoka, K., Yamada, M., Matsukubo, Y., Tsurusaki, M., Kitajima, K., et al. (2022) · BMC Cancer · doi:10.1186/s12885-022-10281-4 · Cited by 3
“Odawara S, Kitajima K, Katsuura T, Kurahashi Y, Shinohara H, Yamakado K. Tumor response to neoadjuvant chemotherapy in patients with esophageal cancer assessed with CT and FDG-PET/CT — RECIST 1.1 vs. PERCIST 1.0.”
MethodInfluentialAydos, U., Balcı, E., Ateş, S. G., Akdemir, Ü., Karadeniz, C., & Atay, L. (2022) · Turkish Journal of Medical Sciences · doi:10.55730/1300-0144.5584 · Cited by 3
“The SULpeak was defined as the average of voxel uptake values of a 1 cm3 spheric VOI centered on the highest uptake part of the tumor [20, 21].”
MethodChoi, S.-J., Kim, Y.-I., Lee, G., Choi, S., Kim, H., Kim, Y.-H., Kim, D. K., Park, S.-I., & Ryu, J. (2022) · Medicine · doi:10.1097/md.0000000000029867 · Cited by 3
“[28] Therefore, SUVpeak has been recommended as an alternative to SUVmax.”
BackgroundInfluentialWu, C., Chen, B., Wang, M., & Tang, Y. (2022) · Evidence-Based Complementary and Alternative Medicine · doi:10.1155/2022/8495452 · Cited by 3
“-eWHO response evaluation criteria (REC) for solid tumors were adopted to analyze short-term efficacy, and the Karnofsky performance status (KPS) score was used to assess the quality of life by recording adverse reactions in the blood system, kidney, gastrointestinal tract, bladder, nervous system, and heart.”
BackgroundMethodInfluentialRetractedRadiopharmaceuticals as Novel Immune System Tracers
Ridge, N. A., Rajkumar-Calkins, A., Dudzinski, S. O., Kirschner, A. N., & Newman, N. B. (2022) · Advances in Radiation Oncology · doi:10.1016/j.adro.2022.100936 · Cited by 4
Shiba, S., Okamoto, M., Yanagawa, T., Kohama, I., Shibuya, K., Okazaki, S., Miyasaka, Y., Chikuda, H., & Ohno, T. (2022) · Radiation Oncology · doi:10.1186/s13014-022-02040-3 · Cited by 3
Lumbroso, J. (2022) · Presse medicale · doi:10.1016/j.lpm.2022.104124 · Cited by 3
Lin, G., Zong, X., Li, Y., Tan, W., Sun, W., Zhang, S., Gan, Y., & Zeng, H. (2022) · Frontiers in Oncology · doi:10.3389/fonc.2022.827777 · Cited by 4
Economic assessment of molecular imaging in the oncology treatment process.
Schnitzer, M., Kremer, C., Hertel, A., Haselmann, V., von Münchhausen, N., Schoenberg, S., & Froelich, M. (2021) · European Journal of Radiology · doi:10.1016/j.ejrad.2021.110105 · Cited by 3
FDG PET/CT in follow UP patients with colorectal carcinoma after adjuvant chemotherapy
Elia, R. Z., Elbastawessy, R. A., Abdelmgeguid, H. A., & Bassiouny, A. (2021) · The Egyptian Journal of Radiology and Nuclear Medicine · doi:10.1186/s43055-021-00655-2 · Cited by 3
“In comparison to anatomical changes, the biological effect of therapy, as seen on PET/CT imaging, was thought to be a greater predictive indicator [6].”
BackgroundBowen, S. R., Hippe, D. S., Thomas, H. M. T., Sasidharan, B., Lampe, P. D., Baik, C. S., Eaton, K. D., Lee, S. Y., Martins, R. G., Santana-Dávila, R., et al. (2021) · Advances in Radiation Oncology · doi:10.1016/j.adro.2021.100857 · Cited by 6
“93]).(27,28) Beyond week 3 PET response status as a single binary variable, we restricted prognostic evaluation of week 3 PET biomarkers to total lesion glycolysis (TLGmidtx [g]), representing metabolic disease burden and the product of MTV (mL) with SUVmean (g/mL).”
MethodLongitudinal evaluation of five nasopharyngeal carcinoma animal models on the microPET/MR platform
Shi, J.-J., Xue, Z.-C., Tan, K., Yuan, H., Tsang, A., Tsao, S.-W., & Khong, P. (2021) · European Journal of Nuclear Medicine and Molecular Imaging · doi:10.1007/s00259-021-05633-4 · Cited by 3
Zijlema, S., Branderhorst, W., Bastiaannet, R., Tijssen, R., Lagendijk, J., & den Berg, C. V. D. V. (2021) · Physics in Medicine and Biology · doi:10.1088/1361-6560/ac2a8a · Cited by 3
Intrapatient variability of 18F-FDG uptake in normal tissues
Sayed, M. H. M., Abdelnaim, A. K., & Mohamadien, N. R. (2022) · Journal of Clinical Imaging Science · doi:10.25259/jcis_23_2022 · Cited by 2
Wang, J., Zhang, Q., Cao, Y., 王春波, & Hamzeh, S. (2026) · Discover Oncology · doi:10.1007/s12672-026-05151-5 · Cited by 2
“…change ≥ 30% decline from baseline as the provisional threshold to continue ADC; lack of ≥ 30% decline (or a ≥ 30% increase) at the pre-specified early timepoint (for example 2–4 weeks depending on agent) should trigger lesion-level review and consideration of sequencing/escalation to RIT [115].”
InfluentialCebeci, S., Birsin, Z., Jeral, S., Abbasov, H., Aliyev, V., Çerme, E., Çiçek, E., Atak, S., Günaltılı, M., Guliyev, M., et al. (2026) · Journal of Clinical Medicine · doi:10.3390/jcm15103736 · Cited by 2
“Treatment response was evaluated using FDG-PET/CT imaging every three months according to the Positron Emission Tomography Response Criteria in Solid Tumors (PER-CIST) [13].”
Bailly, C., Giraudet, A., Turpin, L., Claudin, M., Tonnelet, D., Habouzit, V., Merlin, C., Deshayes, E., Lussey, C., Robin, P., et al. (2026) · Médecine Nucléaire · doi:10.1016/j.mednuc.2026.02.001 · Cited by 2
Bosque, J. J., Molina-García, D., Pérez-Beteta, J., Vicente, A. G., & Pérez-García, V. M. (2026) · Annals of Nuclear Medicine · doi:10.1007/s12149-025-02138-0 · Cited by 2
Heo, J., Rao, S., Newton, H., Dowlati, A., Muzic, R., & Kardan, A. (2026) · Integrative Cancer Therapies · doi:10.1177/15347354251410182 · Cited by 2
“…anatomic imaging, governed by World Health Organization (WHO), RECIST, and RECIST 1.1 criteria, exhibits inherent limitations in accurately gauging the efficacy of contemporary cancer treatments, especially those that achieve disease stabilization rather than reduction in tumor size 15 .”
InfluentialDai, J.-N., Zou, Y., Wang, H., Huang, H.-X., Yang, L.-X., Zou, B.-W., & Tian, R. (2025) · European Journal of Nuclear Medicine and Molecular Imaging · doi:10.1007/s00259-025-07684-3 · Cited by 2
EANM insights on PET-based response assessment in neuro-oncology: things are moving forward!
Verger, A., Albert, N., Brendel, M., Cecchin, D., Aguiar-Fernández, P., Fraioli, F., Guedj, E., Traub-Weidinger, T., Yakushev, I., Weehaeghe, D. V., et al. (2025) · The EANM Journal · doi:10.1016/j.eanmj.2025.100008 · Cited by 2
Guo, W. J., Zhao, L., Chen, X., Wang, S., Tao, X., Li, L., Sun, Q., Gao, Y. S., Mao, Y., Shao, K., et al. (2025) · European Journal of Cancer · doi:10.1016/j.ejca.2025.116198 · Cited by 3
Novel Molecular Imaging Approaches: Towards a Better Estimation of Response in Breast Cancer.
Sharkey, A. R., & Cook, G. J. R. (2025) · British journal of hospital medicine · doi:10.12968/hmed.2024.0959 · Cited by 2
Emerging biomarkers for early detection of lung cancer
Khangar, P. K., Daniel, V., Vengurlekar, S., Daniel, K., & Jain, S. K. (2025) · Clinical Cancer Bulletin · doi:10.1007/s44272-025-00046-y · Cited by 2
“For example, PET scan is useful in imaging metabolic activity, while the CT scans are used to image the structure of the body [228, 229].”
Tao, X., Guan, Z., Qu, J., Sun, Q., Xiao, Y., Li, Z., Ma, N., Lin, X., Wen, G., Zheng, H., et al. (2025) · European Journal of Nuclear Medicine and Molecular Imaging · doi:10.1007/s00259-025-07582-8 · Cited by 2
“The use of SUL is recommended by both the Society of Nuclear Medicine and Molecular Imaging (SNMMI) and the European Association of Nuclear Medicine (EANM) in their procedural guidelines for FDG PET/CT imaging, particularly in multi-center and quantitative research settings [22, 23 ].”
Liu, Y.-N., Wang, G.-L., Yan, X.-F., Wang, H.-T., Li, T.-C., Yang, S.-Y., Liu, Z.-F., Zhang, S., & Su, X.-H. (2025) · Quantitative Imaging in Medicine and Surgery · doi:10.21037/qims-2025-958 · Cited by 2
“For clinical 18F-fluorodeoxyglucose ( 18 F-FDG) PET/CT oncology imaging, standardized uptake value (SUV) metrics including maximum SUV (SUVmax), mean SUV (SUVmean), and peak SUV (SUVpeak) are now routinely utilized in single-time-point images for quantifying glucose metabolic activity (1).”
David, S., White, M., Siva, S., Tan, J., Connolly, E., & Bressel, M. (2025) · International Journal of Radiation Oncology, Biology, Physics · doi:10.1016/j.ijrobp.2025.08.009 · Cited by 2
Lawless, A., Mohan, R., Ragavan, A., Venkatesha, V., Brown, C., Macleod, P., Stevens, M., Eade, T., Jayamanne, D., & Bergamin, S. (2025) · Reports of Practical Oncology & Radiotherapy · doi:10.5603/rpor.108006 · Cited by 2
“Response to treatment was defined as per Response Evaluation Criteria in Solid Tumors (RECIST) or PET Response Criteria in Sol-id Tumors (PERCIST) criteria in those undergoing CT or FDG PET-CT, respectively [5, 6].”
Topkan, E., Somay, E., Başçıl, S., Ozturk, D., & Selek, U. (2025) · Journal of International Medical Research · doi:10.1177/03000605251379977 · Cited by 2
Bülbül, O., Bülbül, H. M., & Göksel, S. (2025) · European Journal of Breast Health · doi:10.4274/ejbh.galenos.2025.2025-5-3 · Cited by 2
“PET/ CT images were evaluated according to the PERCIST criteria, while CT and MRI findings were assessed according to the RECIST 1.1 criteria (14).”
InfluentialMarquis, H., Erlandsson, K., & Buvat, I. (2025) · PET Clinics · doi:10.1016/j.cpet.2025.07.001 · Cited by 2
The Importance of PET Quantification for Prognosis and Treatment Response Monitoring.
Abgral, R., Bailly, C., Boellaard, R., Bourhis, D., & Carlier, T. (2025) · PET Clinics · doi:10.1016/j.cpet.2025.07.007 · Cited by 2
L-5-[11C]-glutamine PET of breast cancer: Preclinical studies in mouse models
Hensley, C., Padakanti, P. K., Damani, R., Dulal, C., Choi, H., Li, S.-H., Cao, J., Lee, H.-J. S., Pantel, A., Li, E. J., et al. (2025) · Nuclear Medicine and Biology · doi:10.1016/j.nucmedbio.2025.109092 · Cited by 2
Oldan, J., Jensen, C. E., Stephens, D. M., Grover, N., Beaven, A., Dittus, C., Lodge, M. A., Benefield, T., & Rowe, S. P. (2025) · Quantitative Imaging in Medicine and Surgery · doi:10.21037/qims-2024-2740 · Cited by 2
“SUL is used in some response assessment methodologies such as Positron Emission Tomography Response Criteria in Solid Tumors (PERCIST) (1).”
Self-citation18F-FDG PET-based liver segmentation using deep-learning
Kaneko, Y., Miwa, K., Yamao, T., Miyaji, N., Nishii, R., Yamazaki, K., Nishikawa, N., Yusa, M., & Higashi, T. (2025) · Physical and Engineering Sciences in Medicine · doi:10.1007/s13246-025-01595-1 · Cited by 2
“SUV is defined as tissue radioactivity concentration (kBq/mL) divided by injected dose (MBq) per body weight (kg) [8].”
Characterization of Pulmonary Sclerosing Pneumocytoma Assessed by 18F‐FDG PET/CT
Xu, J., Wan, X., Zhai, S., Yuan, S., Li, S.-Y., Xu, W.-G., Fan, M., & Zhu, L. (2025) · Thoracic Cancer · doi:10.1111/1759-7714.70124 · Cited by 2
“It has been suggested that SUV mean may not be as reproducible as SUV peak because it relies on the delineation of VOIs [28, 29].”
Prognostic Value of 18F-FDG PET/CT in Neoadjuvant PD-1 Inhibitor-treated NSCLC
Tao, X., Zhang, Q., Li, N., Wang, S.-H., Guo, W., Yuan, P., Ying, J.-M., Li, J., Guo, L., Tang, W., et al. (2025) · Clinical Nuclear Medicine · doi:10.1097/rlu.0000000000005910 · Cited by 2
Li, L., Cui, F., Tian, R., Jiang, M., Zou, L., Li, X., & Su, M. (2025) · Annals of Hematology · doi:10.1007/s00277-025-06420-z · Cited by 1
“The liver SUV max was obtained by measuring the SUV max of a 3-cm-diameter spherical volume of interest (VOI) in the center of the normal right lobe of the liver [15].”
InfluentialBlanc, J., Bouattour, M., Gauthier, L., Deshayes, E., Guillemard, S., Touchefeu, Y., Portales, F., Borg, C., Harguem, L., Guimbaud, R., et al. (2025) · The Oncologist · doi:10.1093/oncolo/oyaf080 · Cited by 1
Takenaka, J., Watanabe, S., Abe, T., Takeuchi, S., Hirata, K., Kimura, R., Ishii, H., Wakabayashi, N., Majigsuren, M., & Kudo, K. (2025) · Diagnostics · doi:10.3390/diagnostics15111305 · Cited by 2
“The criteria for FDG avidity were established using a threshold of the mean + 3 SD to ensure consistency [40].”
Baier, J., Funck, K., Dons-Jensen, A., Munk, O. L., Tolbod, L., Laugesen, E., Poulsen, P. L., Gormsen, L., & Dias, A. H. (2025) · EJNMMI Research · doi:10.1186/s13550-025-01249-z · Cited by 2
“…by Langen et al. [29] suggested that a 25% variation in SUV mean variation in studies performed within 30 days of each other might be used as a threshold for significant changes in lesions between studies, while the PERCIST criteria established a 30% variation of SUV-peak as significant [30].”
Megherbi, I., Hoog, C., Perrier, M., Brixi, H., Cadiot, G., Hoeffel-Fornes, C., & Morland, D. (2025) · EJNMMI Research · doi:10.1186/s13550-025-01250-6 · Cited by 2
“PET with 68Ga-DOTATATE has been studied in the evaluation of response, however 68Ga-DOTATATE SUV lacks validation before it can be used as reliably as FDG PET [31].”
Faure, S., Paillet, A., Comtat, C., & Besson, F. L. (2025) · European Journal of Nuclear Medicine and Molecular Imaging · doi:10.1007/s00259-025-07285-0 · Cited by 2
“To meet the growing demands of precision medicine, numerous diagnostic and prognostic PET imaging biomarkers have been proposed over the past 15 years [11–16].”
Espedal, H., Lyngstad, J. M., Berg, H., Hjelmeland, M., Fasmer, K., Krakstad, C., & Haldorsen, I. (2025) · EJNMMI Research · doi:10.1186/s13550-025-01235-5 · Cited by 2
“…to a decrease in tumor size (measured by CT or calipers), similar to our findings (MR FDG ) in Model A. Reduction in metabolic activity may precede reduction in tumor size [23, 35, 36], and encourages the use of [ 18 F]FDG-PET imaging for evaluation of treatment response following chemotherapy.”
Sharma, S., Nazar, A. H., Mishra, P., Ora, M., Arya, A., Barai, S., Pradhan, P., & Gambhir, S. (2025) · Nuclear medicine communications · doi:10.1097/mnm.0000000000001980 · Cited by 2
Paquier, Z., Dhont, J., Guiot, T., Levillain, H., Critchi, G., Saúde-Conde, R., Sclafani, F., Flamen, P., Reynaert, N., Woff, E., et al. (2025) · JCO Clinical Cancer Informatics · doi:10.1200/cci-24-00207 · Cited by 2
“41 Furthermore, ensuring consistent and reliable results of our Imaging Score in other centers would require the standardization or harmonization of PET image acquisition.”
RECIP 1.0: A Roadmap for Clinical Implementation
Gafita, A., Djaileb, L., Calais, J., Eiber, M., & Fendler, W. (2025) · Journal of Nuclear Medicine · doi:10.2967/jnumed.124.268730 · Cited by 2
Groheux, D., Vaz, S. C., de Geus-Oei, L. D., Dibble, E. H., Ulaner, G., Cook, G. J. R., Hindié, E., Poortmans, P., Mann, R. M., Jacene, H., et al. (2025) · Journal of Clinical Oncology · doi:10.1200/jco-24-01945 · Cited by 2
Self-citationChopra, S., Shukla, J., Purohit, P., Adhikari, U., Roesch, F., Moon, E., Rathore, Y., Rana, N., Bhadada, S., Mittal, B., et al. (2025) · European Journal of Nuclear Medicine and Molecular Imaging · doi:10.1007/s00259-025-07203-4 · Cited by 2
“The tumor-to-background ratios (TBR) for both tracers were also determined using blood pool (BP) as reference background [25].”
MHC class II: a predictor of outcome in melanoma treated with immune checkpoint inhibitors
Amrane, K., Noac'h, P. L., Hemon, P., Abgral, R., le Meur, C., Pradier, O., Misery, L., Legoupil, D., Berthou, C., & Uguen, A. (2025) · Melanoma research · doi:10.1097/cmr.0000000000001022 · Cited by 2
“Disease control rate (DCR), defined as the proportion of patients who have a partial or complete response or stable disease to ICI (according to PERCIST criteria [29]); 1-year OS, defined as the time from diagnosis to death or date of last follow-up during the first year of treatment.”
Zwarthoed, C., Jaraudias, C., Evesque, L., Baron, D., François, E., Chardin, D., Marie, L., Mitrea, D., Château, Y., Gal, J., et al. (2025) · Clinical colorectal cancer · doi:10.1016/j.clcc.2025.01.006 · Cited by 2
Current and Future Perspective of PET/CT in Response Assessment of Malignant Pleural Mesothelioma.
Badarna, M., Keidar, Z., & Arnon-Sheleg, E. (2025) · Seminars in nuclear medicine · doi:10.1053/j.semnuclmed.2025.02.001 · Cited by 2
Xia, Z., Hong, J., Yu, X.-Y., Ran, Y.-H., Xie, H.-L., Zhou, Z., Zuo, J., Chen, T., Meng, J., & Yang, J. (2024) · Frontiers in Oncology · doi:10.3389/fonc.2024.1422039 · Cited by 2
Quartuccio, N., Militano, V., Pappalardo, M., Filippi, L., Bagni, O., Moreci, A. M., & Ialuna, S. (2024) · Current Oncology · doi:10.3390/curroncol31110508 · Cited by 2
“…article, the number of patients with complete response (CR), partial response (PR), stable disease (SD), and progressive disease (PD) was extracted, as defined according to response evaluation criteria in solid tumors (RECIST version 1.1) or PET response criteria in solid tumors (PERCIST) [12,13].”
InfluentialChen, P.-Y., Cheng, N.-M., Lin, C.-Y., Chang, K.-P., Lu, Y.-A., Tsai, T.-Y., Chen, M.-F., Fang, F.-M., Hsu, C.-L., & Hsieh, R. C.-E. (2024) · Clinical Nuclear Medicine · doi:10.1097/rlu.0000000000005538 · Cited by 2
Burgard, C., Khreish, F., Dahlmanns, L., Blickle, A., Bastian, M. B., Speicher, T., Maus, S., Schaefer-Schuler, A., Bartholomä, M. D., Petto, S., et al. (2024) · Cancers · doi:10.3390/cancers16203532 · Cited by 2
“In accordance with the current imaging guidelines [33], the interval between tracer injection and imaging was 60 min.”
MethodSkoglund, T., Minarik, D., Edenbrandt, L., & Trägårdh, E. (2024) · Clinical Physiology and Functional Imaging · doi:10.1111/cpf.12907 · Cited by 2
Measures for response assessment in HCC treatment
Yazdanpanah, F., Al‐Daoud, O., Moradpour, M., & Hunt, S. J. (2024) · Hepatoma Research · doi:10.20517/2394-5079.2024.60 · Cited by 1
Nikoukar, L. R., Seifert, R., Ventura, D., Schindler, P., Bögemann, M., Rahbar, K., & Roll, W. (2024) · NuclearMedicine · doi:10.1055/a-2383-2468 · Cited by 2
Ince, S., Laforest, R., Itani, M., Prasad, V., Ashrafinia, S., Smith, A. M., Wahl, R. L., & Fraum, T. J. (2024) · Diagnostics · doi:10.3390/diagnostics14090883 · Cited by 2
“The standardized uptake value (SUV) is the most widely utilized quantitative metric in positron emission tomography (PET) [1].”
BackgroundMethodSelf-citationMuzi, M., Peterson, L., Specht, J., Hippe, D., Novakova-Jiresova, A., Lee, J. H., Kurland, B., Mankoff, D., Obuchowski, N. A., Linden, H., et al. (2024) · EJNMMI Research · doi:10.1186/s13550-024-01093-7 · Cited by 2
“The EORTC response criteria were expanded and modified by Wahl and colleagues in 2009 for the Positron Emission Tomography Response Criteria in Solid Tumors, or PERCIST [28].”
MethodZheng, X.-L., Lu, T., Wu, S., Lin, X.-Y., Bai, J., Chen, X.-H., Miao, Q., Yan, J.-Q., Jiang, K., Zhang, L.-F., et al. (2024) · MedComm · doi:10.1002/mco2.493 · Cited by 2
“16 Although efforts have been made to develop improved versions such as iRECIST 17 and PERCIST 18 to accommodate advancements in immunotherapy and emerging imaging technologies, they still primarily focus on the overall tumor burden but neglect heterogeneity of tumor.”
BackgroundÖztürk, H. (2024) · Reports of Practical Oncology & Radiotherapy · doi:10.5603/rpor.98727 · Cited by 2
“However, these criteria do not include a functional component in the evaluation, which led to the proposal of new criteria [PET Response Criteria in Solid Tumors (PERCIST)] that combine functional FDG-PET imaging with cross-sectional body imaging [10].”
BackgroundPET/Computed Tomography Transformation of Oncology: Immunotherapy Assessment.
Ghodsi, A., Hicks, R. J., & Iravani, A. (2024) · PET Clinics · doi:10.1016/j.cpet.2023.12.012 · Cited by 2
Passarelli, A., Pisano, C., Coppola, E., Ventriglia, J., Cecere, S., Napoli, M. D., Carideo, L., Lastoria, S., & Pignata, S. (2023) · Frontiers in Immunology · doi:10.3389/fimmu.2023.1303893 · Cited by 2
Bisht, N., Lohia, N., Singh, S., Sarin, A., Mahato, A., Paliwal, D., Sinha, I., & Bhatnagar, S. (2023) · World Journal of Nuclear Medicine · doi:10.1055/s-0043-1777699 · Cited by 2
“20 Also, pooled results of a recent meta-analysis indicate that PET-CT has a good sensitivity (87”
BackgroundLiu, G.-B., Tan, H., Sui, X., Qi, C., Cao, Y., Cai, D.-J., Hu, P.-C., Zhang, Y.-Q., & Shi, H.-C. (2023) · Quantitative Imaging in Medicine and Surgery · doi:10.21037/qims-23-719 · Cited by 2
“According to the PET Response Criteria in Solid Tumors (PERCIST), we defined a positive lesion on PET as follows: SUL peak of lesion >1.5 × SUL mean + 2.0 × SUL SD of the background liver, where SUL denotes SUV normalized by lean body weight (26).”
InfluentialWellman, T., Mudd, S., Godby, K., Wooten, D. W., Ross, J. A., Bueno, O., Wanik, D., Divgi, C., Comley, R., Costa, L. J., et al. (2023) · Translational Oncology · doi:10.1016/j.tranon.2023.101767 · Cited by 2
“The PERCIST outcome for the follow-up timepoints was determined per patient using published methods [11,12].”
MethodInfluentialGemmell, A., Brown, C., Ray, S., & Small, A. (2023) · Nuclear medicine communications · doi:10.1097/mnm.0000000000001746 · Cited by 2
Zhang, M., Yang, W., Yuan, Y., Liu, Z., Yue, X., Cao, X., & Han, B. (2023) · Japanese Journal of Radiology · doi:10.1007/s11604-023-01477-0 · Cited by 2
Aravind, P., Popat, S., Barwick, T. D., Soneji, N. D. R., Lythgoe, M. P., Sreter, K. B., Lozano-Kühne, J., Bergqvist, M., Patel, N., Aboagye, E. O., et al. (2023) · Cancers · doi:10.3390/cancers15143718 · Cited by 2
“The repeatability of quantitative uptake measures with the 18F- fluorodeoxyglucose (18F-FDG) PET that has been integrated into the response assessment criteria Positron Emission Tomography Response Criteria in Solid Tumours (PERCIST) [19], as well as that of 18F-FLT, is deemed to be about 20% [20–22].”
MethodGuler, O., Oymak, E., Yazici, G., Akagunduz, O., Çetinayak, O., Erpolat, P., Aksoy, A., Duzova, M., Yıldırım, B., Kurt, M., et al. (2023) · Oncology Research · doi:10.32604/or.2023.028840 · Cited by 2
Optimized 18F-FDG PET-CT Method to Improve Accuracy of Diagnosis of Metastatic Cancer
Black, R., Barentsz, J., Howell, D., Bostwick, D., & Strum, S. (2023) · Diagnostics · doi:10.3390/diagnostics13091580 · Cited by 2
“Fourth, the derived algorithm needs to be prospectively validated for utility in diagnosis of treatment response, including metabolic stability, metabolic progression, or complete or partial metabolic response utilizing EORTC criteria [36] or PERCIST criteria [20,37].”
BackgroundMethodLawrence, E. M., Kieler, M., Cooley, G., Wells, S. A., & Cho, S. Y. (2023) · PLoS ONE · doi:10.1371/journal.pone.0283830 · Cited by 2
Metadata
- Authors
- Wahl, R. L., Jacene, H., Kasamon, Y., & Lodge, M. A.
- Affiliations
- Johns Hopkins University (US)
- Corresponding author
- Wahl, Richard L.
- Venue
- Journal of Nuclear Medicine
- Publisher
- Society of Nuclear Medicine
- Published
- 2009-04-29
- Volume
- 50
- Issue
- Suppl 1
- Pages
- 122S-150S
- ISSN
- 0161-5505 (ISSN-L)
- 2159-662X
- PMC
- PMC2755245
- OpenAlex
- W2155263737
- Cited by
- 3,777
- References
- 157
- Citations by year
- 2026: 180 · 2025: 200 · 2024: 197 · 2023: 230 · 2022: 248 · 2021: 309 · 2020: 271 · 2019: 259 · 2018: 225 · 2017: 274 · 2016: 246 · 2015: 245 · 2014: 221 · 2013: 230 · 2012: 192
- FWCI
- 21.01
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of Nuclear Medicine (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Cancer Institute (CA006973, P30CA006973)
- Topics
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Medical Imaging Techniques and Applications
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Radiomics and Machine Learning in Medical Imaging
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Diagnosis and Treatment
- Keywords
- RECIST, PERCIST, 18F-FDG PET, tumor response assessment, standardized uptake value, WHO criteria, RECIST 1.1, region of interest, treatment response assessment, solid tumors, lymphoma, sarcoma, hepatocellular carcinoma, mesothelioma, gastrointestinal stromal tumor, test-retest variability
- MeSH terms
- Forecasting, Humans, Neoplasms, Prognosis, World Health Organization, Treatment Outcome, Outcome Assessment, Health Care, Practice Guidelines as Topic, Radiopharmaceuticals, Fluorodeoxyglucose F18, Internationality, Positron-Emission Tomography
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review