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.
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“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]
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“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]
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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
Flagged first, then by citations
25 of the 157 references couldn’t be matched to a known paper.
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 301–400 of 1,041
The Role of [18F]FDG PET/CT in Monitoring of Therapy Response in Lung Cancer.
Ayeni, A. O., Evbuomwan, O., & Vangu, M. (2025) · Seminars in nuclear medicine · doi:10.1053/j.semnuclmed.2025.02.002 · Cited by 12
Milano, M., Valenza, C., Ferrari, A., Gandini, S., Trapani, D., Santoro, C., Battaiotto, E., Schianca, A. C., Giordano, E., Katrini, J., et al. (2024) · European Journal of Cancer · doi:10.1016/j.ejca.2024.115164 · Cited by 12
Brose, A., Miederer, I., König, J., Gkika, E., Sahlmann, J., Schimek-Jasch, T., Schreckenberger, M., Nestle, U., Kappes, J., & Miederer, M. (2024) · Cancer Imaging · doi:10.1186/s40644-024-00811-7 · Cited by 12
Dimopoulos, P. M., Sotirchos, V. S., Dunne-Jaffe, C., Petre, E., Gonen, M., Zhao, K., Kirov, A. S., Crane, C., D'Angelica, M., Connell, L., et al. (2024) · Clinical Nuclear Medicine · doi:10.1097/rlu.0000000000005565 · Cited by 12
Dong, Y., Wang, Z.-D., Hu, X., Sun, Y., Qin, J.-J., Qin, Q., Liu, S., Yuan, S.-H., Yu, J.-M., & Wei, Y.-C. (2024) · Journal of Nuclear Medicine · doi:10.2967/jnumed.124.268557 · Cited by 12
“Our previous studies have shown that [ 18 F]AlF-NOTA-FAPI-04 (denoted as 18 F-FAPI) for PET offers high speci fi city as a tracer for FAP imaging and allows fast imaging with high contrast in LA-ESCC, lung cancer, and other various cancers ( 14 ), thereby enabling the systematic investigation of the…”
Pan, L., Sachpekidis, C., Hassel, J., Christopoulos, P., & Dimitrakopoulou-Strauss, A. (2024) · European Journal of Nuclear Medicine and Molecular Imaging · doi:10.1007/s00259-024-06879-4 · Cited by 12
“However, the liver is used as reference in several papers and most importantly as a criterion for defining response to therapy with different response criteria, e.g. the Deauville crite - ria [19] for lymphoma and also in all sets of PERCIST criteria [20] .”
Soumoy, L., Genbauffe, A., Mouchart, L., Sperone, A., Trelcat, A., Mukeba-Harchies, L., Wells, M., Blankert, B., Najem, A., Ghanem, G., et al. (2024) · Cancer Cell International · doi:10.1186/s12935-023-03196-y · Cited by 13
“Among the patients, four demonstrated a response to treatment, with either a partial or complete response as the best response according to the Response Evaluation Criteria In Solid Tumors (RECIST) 1.1 [26] or the PET Response Criteria in Solid Tumors (PERCIST) [27].”
MethodInfluentialMorken, S., Langer, S., Sundlöv, A., Vestermark, L., Ladekarl, M., Hjortland, G., Svensson, J., Tabaksblat, E., Haslerud, T., Aßmus, J., et al. (2023) · British Journal of Cancer · doi:10.1038/s41416-023-02462-0 · Cited by 12
“All HG-NEN patients were included in the fi nal analysis, including cases with a Ki-67 > 55% after re-evaluation.”
Method68Ga-PSMA PET/CT for Response Evaluation of223Ra Treatment in Metastatic Prostate Cancer
de Jong, A. C., Segbers, M., Ling, S. W., Graven, L. H., Mehra, N., Hamberg, P., Brabander, T., de Wit, R., & van der Veldt, A. A. M. (2023) · Journal of Nuclear Medicine · doi:10.2967/jnumed.123.265489 · Cited by 14
“68 Ga-PSMA PET/CT images were examined by nuclear medicine physicians according to adapted PER-CIST ( 24,25 ).”
Parisi, S., Ferini, G., Lillo, S., Brogna, A., Chillari, F., Ferrantelli, G., Settineri, N., Santacaterina, A., Platania, A., Leotta, S., et al. (2023) · La radiologia medica · doi:10.1007/s11547-023-01659-w · Cited by 12
“1) [15] whereas the metabolic response was evaluated through the PET-CT Response Criteria in Solid Tumors (PERCIST) [16].”
MethodGrambozov, B., Kalantari, F., Beheshti, M., Stana, M., Karner, J., Ruznic, E., Zellinger, B., Sedlmayer, F., Rinnerthaler, G., & Zehentmayr, F. (2023) · Radiotherapy and Oncology · doi:10.1016/j.radonc.2023.109728 · Cited by 12
Karimdjee, M., Delaby, G., Huglo, D., Baillet, C., Willaume, A., Dujardin, S., & Bailliez, A. (2023) · European Radiology · doi:10.1007/s00330-022-09375-1 · Cited by 12
Lunger, L., Chantadisai, M., Karimzadeh, A., Rauscher, I., D’Alessandria, C., Feuerecker, B., Langbein, T., Tauber, R., Schiele, S., Weber, W., et al. (2022) · Journal of Nuclear Medicine · doi:10.2967/jnumed.122.264962 · Cited by 12
“Specifically, PSMA PET criteria included (68)Ga-PSMA11 PET–adapted PERCIST (16), adapted PCWG3 (4), and PPP criteria (10).”
BackgroundMethodTailoring the clinical management of colorectal cancer by 18F-FDG PET/CT
Shi, Y., Wang, M., Zhang, J.-Y., Xiang, Z., Li, C., Zhang, J.-J., & Ma, X.-Y. (2022) · Frontiers in Oncology · doi:10.3389/fonc.2022.1062704 · Cited by 12
“, peak SUV normalized to lean body mass (SUL) in a spherical 1 cm(3) volume of interest (VOI) (49).”
BackgroundInfluentialTakenaka, J., Watanabe, S., Abe, T., Hirata, K., Uchiyama, Y., Kimura, R., Shinohara, N., & Kudo, K. (2022) · Annals of Nuclear Medicine · doi:10.1007/s12149-022-01798-6 · Cited by 12
Kwon, H., Cho, J., Park, S., Lee, S.-H., Ahn, M., Choi, J. Y., Lee, K.-H., Jung, H., & Moon, S. (2022) · Frontiers in Medicine · doi:10.3389/fmed.2022.896494 · Cited by 12
FDG PET/CT for Staging and Restaging Malignant Mesothelioma
Lopci, E., Castello, A., & Mansi, L. (2022) · Seminars in Nuclear Medicine · doi:10.1053/j.semnuclmed.2022.07.005 · Cited by 17
Ricard, F., Barrington, S., Korn, R., Brueggenwerth, G., Trotman, J., Cheson, B., Salles, G., Schwartz, L., Goldmacher, G., Jarecha, R., et al. (2022) · Journal of Nuclear Medicine · doi:10.2967/jnumed.122.264124 · Cited by 12
“SUVpeak (corrected for lean body mass) is used in PERCIST (25).”
MethodImaging response assessment for oncology: An algorithmic approach
Ruchalski, K. L., Dewan, R., Sai, V., McIntosh, L., & Braschi‐Amirfarzan, M. (2022) · European Journal of Radiology Open · doi:10.1016/j.ejro.2022.100426 · Cited by 12
Jiang, M.-Q., Zhang, X., Chen, Y., Chen, P., Guo, X., Ma, L., Gao, Q., Mei, W.-Q., Zhang, J.-F., & Zheng, J.-J. (2022) · Frontiers in Oncology · doi:10.3389/fonc.2022.780186 · Cited by 12
“However, the differences between atelectasis or fibrosis and residual neoplasm cannot be distinguished significantly by conventional anatomic imaging modalities (78, 79).”
BackgroundBijlstra, O., Boreel, M., van Mossel, S., Burgmans, M., Kapiteijn, E., Oprea-Lager, D., Rietbergen, D. D. D., van Velden, F. V., Vahrmeijer, A., Swijnenburg, R., et al. (2022) · Diagnostics · doi:10.3390/diagnostics12030715 · Cited by 12
“Similar to RECIST and Choi criteria, the PERCIST and EORTC PET criteria were developed for an objective evaluation after systemic treatment of CRLM [16] (Table 1).”
MethodPotentials of Non-Invasive 18F-FDG PET/CT in Immunotherapy Prediction for Non–Small Cell Lung Cancer
Liao, X.-H., Liu, M., Wang, R., & Zhang, J.-H. (2022) · Frontiers in Genetics · doi:10.3389/fgene.2021.810011 · Cited by 12
Promise and challenges of clinical non-invasive T-cell tracking in the era of cancer immunotherapy
Gosmann, D., Russelli, L., Weber, W., Schwaiger, M., Krackhardt, A. M., & D’Alessandria, C. (2022) · EJNMMI Research · doi:10.1186/s13550-022-00877-z · Cited by 16
“While these techniques provide high temporal and spatial resolution, they are not able to accurately depict the complex patterns of tumor immune environment as well as response during immunotherapy, which can differ considerably from traditional therapies [13, 14].”
BackgroundChong, G., Park, S.-H., Jeong, S., Kim, S. J., Park, N. J.-Y., Lee, Y. H., Lee, S.-W., Hong, D. G., Park, J. Y., & Han, H. (2021) · Diagnostics · doi:10.3390/diagnostics11081517 · Cited by 12
“org, accessed in 1 July–30 September 2020) [20].”
Horn, K., Thomas, H., Vesselle, H., Kinahan, P., Miyaoka, R., Rengan, R., Zeng, J., & Bowen, S. (2021) · Clinical Nuclear Medicine · doi:10.1097/rlu.0000000000003774 · Cited by 12
van den Ende, T., Kuijper, S., Widaatalla, Y., Noortman, W. A., van Velden, F. V., Woodruff, H., van der Pol, Y., Moldovan, N., Pegtel, D., Derks, S., et al. (2024) · International Journal of Radiation Oncology, Biology, Physics · doi:10.1016/j.ijrobp.2024.10.010 · Cited by 11
Lokre, O., Perk, T., Weisman, A., Govindan, R., Chen, S., Chen, M., Eickhoff, J., Liu, G., & Jeraj, R. (2024) · European Journal of Nuclear Medicine and Molecular Imaging · doi:10.1007/s00259-024-06764-0 · Cited by 11
“These include the Response Evaluation Criteria In Solid Tumors (RECIST) [ 9 ], World Health Organization (WHO) [11] Criteria, Positron Emission tomography Response Criteria in Solid Tumors (PERCIST) [ 10] and Deauville Score [12].”
BackgroundMethodKarlsen, W., Akily, L., Mierzejewska, M., Teodorczyk, J., Bandura, A., Zaucha, R., & Cytawa, W. (2024) · Cancers · doi:10.3390/cancers16111990 · Cited by 11
“The classical PET-based criteria to assess metabolic response in solid tumors—EORTC (European Organization for Research and Treatment of Cancer) proposed in 1999 and PERCIST (PET Response Criteria in Solid Tumors) proposed by Wahl et al. in 2009 [46,47]—did not refer to immunotherapy.”
MethodDeep learning-based whole-body PSMA PET/CT attenuation correction utilizing Pix-2-Pix GAN
Ma, K. C., Mena, E., Lindenberg, L., Lay, N. S., Eclarinal, P., Citrin, D., Pinto, P. A., Wood, B. J., Dahut, W., Gulley, J., et al. (2024) · OncoTarget · doi:10.18632/oncotarget.28583 · Cited by 11
High-Specific-Activity 131I-MIBG for the Treatment of Advanced Pheochromocytoma and Paraganglioma
Al-Ward, R., Brondani, V. B., Sawani, S., Potter, C. L., Xu, G.-F., Waguespack, S., Varghese, J., Habra, M., Lu, Y., & Jimenez, C. (2024) · Clinical Nuclear Medicine · doi:10.1097/rlu.0000000000005184 · Cited by 11
Zheng, X., Huang, Y., Lin, Y., Zhu, T., Zou, J., Wang, S., & Wang, K. (2023) · EJNMMI Research · doi:10.1186/s13550-023-01053-7 · Cited by 9
“PET/ CT has distinct advantages over traditional imaging techniques because it provides information about the tumor’s metabolic and biological aspects characteristics and the patient’s prognosis [12, 13].”
Pedrazzoli, S. (2023) · Journal of Clinical Medicine · doi:10.3390/jcm12206461 · Cited by 11
“According to the RECIST 1.1 criteria [131], a partial response corresponds to a ≥ 30% decrease in the SUV [129,132].”
MethodInfluentialLevi, J., & Hong, S. (2023) · Frontiers in Immunology · doi:10.3389/fimmu.2022.1113924 · Cited by 9
Automated lesion detection of breast cancer in [18F] FDG PET/CT using a novel AI-Based workflow
Leal, J., Rowe, S. P., Stearns, V., Connolly, R., Vaklavas, C., Liu, M. C., Storniolo, A., Wahl, R., Pomper, M., & Solnes, L. (2022) · Frontiers in Oncology · doi:10.3389/fonc.2022.1007874 · Cited by 11
“0 defines this baseline assessment threshold (19) as:”
BackgroundMethodInfluentialSelf-citationAdvanced Imaging in Multiple Myeloma: New Frontiers for MRI
Torkian, P., Azadbakht, J., Bonaffini, P. A., Amini, B., & Chalian, M. (2022) · Diagnostics · doi:10.3390/diagnostics12092182 · Cited by 11
“Reporting SUVmean and SUVpeak instead of SUVmax addresses these setbacks, but is rarely performed in clinical practice [76].”
BackgroundMonsef, A., Ay, M., Sheikhzadeh, P., Geramifar, P., Rahmim, A., & Ghafarian, P. (2022) · Nuclear medicine communications · doi:10.1097/mnm.0000000000001598 · Cited by 11
PET-CT in Clinical Adult Oncology—VI. Primary Cutaneous Cancer, Sarcomas and Neuroendocrine Tumors
Fine, G., Covington, M. F., Koppula, B. R., Salem, A. E., Wiggins, R. H., Hoffman, J. M., & Morton, K. A. (2022) · Cancers · doi:10.3390/cancers14122835 · Cited by 10
“These include the PERCIST criteria as well as formal incorporation of FDG PET parameters into traditional anatomically based response criteria, such as RECIST, PERCIST, EORTC, PETCRIT and PERCIMT [19].”
MethodPrinciples of Tracer Kinetic Analysis in Oncology, Part II: Examples and Future Directions
Pantel, A. R., Viswanath, V., Muzi, M., Doot, R. K., & Mankoff, D. A. (2022) · Journal of Nuclear Medicine · doi:10.2967/jnumed.121.263519 · Cited by 14
“For example, target lesions in PERCIST must have uptake greater than a threshold defined by background liver uptake, in large part to ensure the ability to detect a decrease in percentage radiotracer uptake with effective treatment (38).”
Background18F-FDG-PET-MRI for the assessment of acute intestinal graft-versus-host-disease (GvHD)
Roll, W., Schindler, P., Masthoff, M., Strotmann, R., Albring, J., Reicherts, C., Weckesser, M., Noto, B., Stelljes, M., Schäfers, M., et al. (2021) · BMC Cancer · doi:10.1186/s12885-021-08748-x · Cited by 11
“liver lobe according to established criteria [16].”
Faehling, M., Fallscheer, S., Kramberg, S., Sträter, J., Eschmann, S. M., Sätzler, R., & Heinzelmann, F. (2021) · European Journal of Cancer · doi:10.1016/j.ejca.2021.07.035 · Cited by 13
Li, Q., Che, F., Wei, Y., Jiang, H.-Y., Zhang, Y., & Song, B. (2021) · Expert Review of Gastroenterology & Hepatology · doi:10.1080/17474124.2021.1974294 · Cited by 11
“theray) as target lesion tumor response, and nonprogression in nontarget lesions plus target lesion tumor response as overall tumors response [146].”
BackgroundRevheim, M., Hole, K., Mo, T., Bruland, Ø., Reitan, E., Julsrud, L., & Seierstad, T. (2021) · Acta Radiologica · doi:10.1177/02841851211027389 · Cited by 11
“FDG uptake was assessed using PERCIST (Table 2) (16).”
MethodOnal, C., Guler, O., Reyhan, M., & Yapar, A. (2021) · Journal of Gynecologic Oncology · doi:10.3802/jgo.2021.32.e74 · Cited by 11
Roef, M., Rijnsdorp, S., Brouwer, C., Wyndaele, D., & Arends, A. (2021) · Diagnostics · doi:10.3390/diagnostics11061100 · Cited by 11
“proposed a minimum of 30% SUVmax decrease for a true response in their PERCIST response criteria [24].”
BackgroundTriggiani, L., Mazzola, R., Tomasini, D., Bruni, A., Alicino, G., Matrone, F., Bortolus, R., Francolini, G., Detti, B., Magli, A., et al. (2021) · Medical Oncology · doi:10.1007/s12032-021-01518-6 · Cited by 11
“Instrumental tumor response was assessed according to the PET Response Criteria in Solid Tumors [10].”
MethodYao, Y., Zhou, X., Zhang, A., Ma, X., Zhu, H., Yang, Z., & Li, N. (2022) · European Journal of Radiology · doi:10.1016/j.ejrad.2022.110200 · Cited by 10
Two-Time-Point FDG PET/CT: Liver SULmean Repeatability
Tahari, A. K., Paidpally, V., Chirindel, A., Wahl, R. L., & Subramaniam, R. M. (2015) · American Journal of Roentgenology · doi:10.2214/ajr.14.12719 · Cited by 10
Self-citationSørensen, J. S., Vilstrup, M. H., Holm, J., Vogsen, M., Bülow, J. L., Ljungstrøm, L., Braad, P.-E., Gerke, O., & Hildebrandt, M. G. (2020) · Diagnostics · doi:10.3390/diagnostics10121001 · Cited by 10
Hasanabadi, S., Aghamiri, S. R., Abin, A. A., Cheraghi, M., Karam, M. B., Vosoughi, H., Emami, F., & Arabi, H. (2025) · Nuclear medicine communications · doi:10.1097/mnm.0000000000002046 · Cited by 10
“Following lesion delineation, a three-dimensional region of interest with three diameters was defined in the liver’s right lobe, making sure it was lesion-free, in compliance with the PERCIST criteria [38], to compute tumor-to-liver ratio (TLR) radiomics.”
Molecular Imaging for Response Assessment of Neuroendocrine Tumors (NET).
Franco, M. D., Lamberti, G., Campana, D., & Ambrosini, V. (2025) · Seminars in nuclear medicine · doi:10.1053/j.semnuclmed.2025.04.005 · Cited by 10
Cheng, Y., Jiang, Z.-P., Chen, X., Lu, K.-Y., Liu, Z., & Shao, D. (2025) · Clinical Nuclear Medicine · doi:10.1097/rlu.0000000000005863 · Cited by 16
Hotta, M., Nguyen, K., Thin, P., Armstrong, W. R., Sonni, I., Farolfi, A., Steinberg, M. L., Czernin, J. G., Nickols, N. G., Kishan, A. U., et al. (2025) · Radiotherapy and Oncology · doi:10.1016/j.radonc.2025.110869 · Cited by 10
Zhou, X., Yan, S., Li, D., Zhu, H., Liu, B., Liu, S., Zhao, W., Yang, Z., Wu, N., & Li, N. (2024) · Annals of Nuclear Medicine · doi:10.1007/s12149-024-02009-0 · Cited by 10
“The values of SUV max of the lesions and the SUV mean of the blood pool (BP) in 1-cm-diameter region in descending thoracic aorta extended over 2-cm z-axis [21], were recorded, and the ratio of tumour-to-BP (TBR) was calculated as tumour SUV max /BP SUV mean .”
Sui, H., Guo, F., Liu, H., Wang, R., Li, L., Wang, J., Jia, C., Xiang, J., Liang, Y., Chen, X., et al. (2024) · Acta Pharmaceutica Sinica B · doi:10.1016/j.apsb.2024.10.012 · Cited by 12
Psychometric performance of EQ-5D-5L and SF-6Dv2 in patients with lymphoma in China
Zhang, A., Li, J., Mao, Z., Wang, Z., Wu, J. H., Luo, N., Liu, P., & Wang, P. (2024) · The European Journal of Health Economics · doi:10.1007/s10198-024-01672-4 · Cited by 11
McLean, L. S., Lim, A., Bressel, M., Thai, A., & Rischin, D. (2024) · Drugs & Aging · doi:10.1007/s40266-024-01095-z · Cited by 10
“0) [20] on fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT).”
BackgroundChopra, S., Mathur, Y., Roesch, F., Moon, E., Rana, N., Irrinki, S., Walia, R., Duseja, A., Singh, H., Kumar, R., et al. (2024) · Academic Radiology · doi:10.1016/j.acra.2023.12.002 · Cited by 10
Swiha, M. M., Ayati, N., Oprea‐Lager, D. E., Ceci, F., & Emmett, L. (2023) · Seminars in Nuclear Medicine · doi:10.1053/j.semnuclmed.2023.07.007 · Cited by 12
Diagnosis, Management and Theragnostic Approach of Gastro-Entero-Pancreatic Neuroendocrine Neoplasms
Piscopo, L., Zampella, E., Pellegrino, S., Volpe, F., Nappi, C., Gaudieri, V., Fonti, R., Vecchio, S. D., Cuocolo, A., & Klain, M. (2023) · Cancers · doi:10.3390/cancers15133483 · Cited by 13
“The PET Response Criteria in Solid Tumors (PERCIST) were further introduced based on several quantitative parameters, such as metabolic tumor volume (MTV), a measurement of tumor volume burden and total lesion glycolysis (TLG), that is the product of MTV and the SUV mean parameter [100].”
MethodComito, T., Massaro, M., Teriaca, M., Franzese, C., Franceschini, D., Navarria, P., Clerici, E., di Cristina, L., Bertolini, A., Tomatis, S., et al. (2023) · Current Oncology · doi:10.3390/curroncol30070513 · Cited by 10
“1 (RECIST) [29], and PET Response Criteria in Solid Tumors (PERCIST) [30].”
BackgroundNoortman, W. A., Aide, N., Vriens, D., Arkes, L. S., Slump, C., Boellaard, R., Goeman, J., Deroose, C., Machiels, J., Licitra, L., et al. (2023) · Cancers · doi:10.3390/cancers15102681 · Cited by 10
“Volumes of interest (VOI) delineation was performed using the Accurate tool (AmsterdamUMC, Amsterdam, The Netherlands) [13] on both the baseline and evaluation [18F]FDG PET scans using an isocontour that applies an adaptive threshold of 50% of the peak standardised uptake value (SUVpeak), obtained using a sphere 12 mm…”
MethodChua, W. M., Lam, W. W.-C., Tong, A. K. T., Sultana, R., Kua, S. M. Y., Kanesvaran, R., Wong, A. S. C., Tay, K. J., Cheng, T. J. L., Ng, D. C. E., et al. (2023) · Asia-Pacific Journal of Clinical Oncology · doi:10.1111/ajco.13944 · Cited by 10
Moore, J., Subesinghe, M., Santaolalla, A., Green, M., Deere, H., van Hemelrijck, M., Lagergren, J., Chicklore, S., Maisey, N., Gossage, J., et al. (2023) · European Radiology · doi:10.1007/s00330-023-09482-7 · Cited by 10
Molecular imaging as biomarker for treatment response and outcome in breast cancer
van Geel, J. V., de Vries, E. D., van Kruchten, M., Hospers, G., Glaudemans, A., & Schröder, C. (2023) · Therapeutic Advances in Medical Oncology · doi:10.1177/17588359231170738 · Cited by 10
Rammaert, B., Maunoury, C., Rabeony, T., Corréas, J.-M., Elie, C., Alfandari, S., Berger, P., Rubio, M., Braun, T., Bakouboula, P., et al. (2022) · Frontiers in Medicine · doi:10.3389/fmed.2022.1026067 · Cited by 8
“Since there was no gold standard for PET/CT criteria to assess infectious complications, a complete response to PET/CT was defined by the visual disappearance of all target hypermetabolic lesions, according to PET Response Criteria in Solid Tumors (PERCIST) (26) (for more details see Supplementary Table 1).”
MethodYamagiwa, K., Tsuchiya, J., Yokoyama, K., Watanabe, R., Kimura, K., Kishino, M., & Tateishi, U. (2022) · Diagnostics · doi:10.3390/diagnostics12102500 · Cited by 10
“SUVmean is the average SUV and SUVmax is pixel with largest SUV SUVpeak is calculated by defining a 1 cm3 spherical volume at every pixel within the selected VOI, measuring the average SUV in each sphere and then calculating the maximum of all the average SUVs across all these spheres [27].”
MethodGuberina, N., Kessler, L., Pöttgen, C., Guberina, M., Metzenmacher, M., Herrmann, K., Mucha, M., Rischpler, C., Indenkämpen, F., Siveke, J., et al. (2022) · Scientific Reports · doi:10.1038/s41598-022-20447-6 · Cited by 10
Yamaguchi, O., Kaira, K., Naruse, I., Umeda, Y., Honda, T., Watanabe, S., Ichikawa, K., Tateishi, K., Kasahara, N., Higuchi, T., et al. (2022) · Scientific Reports · doi:10.1038/s41598-022-15964-3 · Cited by 10
Chung, Y. S., Kim, Y., Kim, H., Lee, J.-Y., Kang, W., Kim, S., & Kim, S. W. (2022) · Journal of Gynecologic Oncology · doi:10.3802/jgo.2022.33.e28 · Cited by 10
“Considering the kinetics of tumor cell killing and its relationship to PET/CT, increasing the number of chemotherapy cycles reduces the number of cancer cells that can be detected by PET/ CT [10].”
BackgroundInfluentialDinnoo, A., Benmoussa, N., Bidault, F., Brau, J., Tissot, H., Temam, S., Janot, F., & Henry, T. (2021) · Journal of Stomatology Oral and Maxillofacial Surgery · doi:10.1016/j.jormas.2021.11.005 · Cited by 10
The Influence of the Exclusion of Central Necrosis on [18F]FDG PET Radiomic Analysis
Noortman, W. A., Vriens, D., Mooij, C. D. Y., Slump, C., Aarntzen, E., van Berkel, A., Timmers, H., Bussink, J., Meijer, T., de Geus-Oei, L. D., et al. (2021) · Diagnostics · doi:10.3390/diagnostics11071296 · Cited by 10
“A threshold of 41% of the peak standardised uptake value (SUVpeak) that was obtained using a sphere of 12 mm diameter [21] was selected, since the delineated tumour sizes of this method agreed best with pathological tumour sizes [22].”
MethodHe, Y., Tang, Z.-M., Xu, M., & Huang, T. (2025) · Biomedicines · doi:10.3390/biomedicines13122982 · Cited by 9
“Imaging with [18F] FDG-PET/CT is conducted 3 to 12 months post-131 I treatment, evaluated according to RECIST 1.1 [93] and PERCIST 1.0 criteria [94].”
InfluentialRecent Advances in PET and Radioligand Therapy for Lung Cancer: FDG and FAP
Lee, E. J., Chung, H. W., So, Y., Kim, I. A., Kim, H. J., & Lee, K. Y. (2025) · Cancers · doi:10.3390/cancers17152549 · Cited by 7
“The PET Response Criteria in Solid Tumors (PERCIST) were introduced in 2009 to assess metabolic tumor response both qualitatively and quantitatively [61].”
Zhou, X., Yan, S., Ma, X., Zhu, H., Liu, B., Yang, X., Jia, B., Yang, Z., Wu, N., & Li, N. (2025) · European Journal of Nuclear Medicine and Molecular Imaging · doi:10.1007/s00259-025-07115-3 · Cited by 9
“While in therapy evaluation employing CT, a response was defined as diameter decreased more than 30% (≥ 30%), and non-response was defined as diameter decreased less than 30% [18].”
van Mossel, S., Cardet, R. E. D. F., de Geus-Oei, L. D., Vriens, D., Koffijberg, H., & Saing, S. (2024) · PharmacoEconomics (Auckland) · doi:10.1007/s40273-024-01447-y · Cited by 9
Improving diagnostic precision in amyloid brain PET imaging through data-driven motion correction
Park, H. L., Park, S. Y., Kim, M., Paeng, S., Min, E. J., Hong, I., Jones, J. P., & Han, E. J. (2024) · EJNMMI Physics · doi:10.1186/s40658-024-00653-z · Cited by 8
“It shows excellent intra-and interobserver reproducibility and can provide more objective and detailed information than visual analysis [22–24].”
BackgroundGrut, H., Line, P., Syversveen, T., & Dueland, S. (2023) · Cancers · doi:10.3390/cancers16010019 · Cited by 9
“MTV was registered if the maximum standardized uptake value in the metastasis was higher than the mean liver background uptake × 1.5 + standard deviation of the liver background × 2 [17].”
InfluentialHu, R., Zhang, Y., Liu, S., Lee, P., Liu, C.-H., & Liu, A. (2023) · Frontiers in Oncology · doi:10.3389/fonc.2023.1208531 · Cited by 9
“There is a study reporting that an individualized threshold based on the liver background could reduce the impact of different scanning techniques on solid tumor-associated indicators (26).”
BackgroundPullen, L. C. E., Noortman, W. A., Triemstra, L., de Jongh, C., Rademaker, F. J., Spijkerman, R., Kalisvaart, G., Gertsen, E. C., de Geus-Oei, L. D., Tolboom, N., et al. (2023) · Cancers · doi:10.3390/cancers15112874 · Cited by 9
“Tumours were delineated on [18F]FDG PET scans using an isocontour that applies an adaptive threshold of 50% of the peak standardised uptake value (SUVpeak), obtained using a sphere of 12 mm diameter [20], corrected for local background [21].”
MethodPET/CT in Patients with Breast Cancer Treated with Immunotherapy
Vaz, S. C., Graff, S. L., Ferreira, A. R., Debiasi, M., & de Geus‐Oei, L. (2023) · Cancers · doi:10.3390/cancers15092620 · Cited by 9
“0) [54]—at the first 2-[18F]FDG PET/CT evaluation, are classified as having unconfirmed progressive metabolic disease (uPMD).”
BackgroundTutino, F., Giovannini, E., Chiola, S., Giovacchini, G., & Ciarmiello, A. (2023) · Journal of Clinical Medicine · doi:10.3390/jcm12103498 · Cited by 9
“In the same year, 2009, on the heels of RECIST, Wahl et al. published the PET Response Criteria in Solid Tumors (PERCIST) [24].”
Terroir-Cassou-Mounat, M., Lamesa, C., Krim, M., Vija, L., Texier, J.-S., Cassou‐Mounat, T., Delord, J., Vallot, D., & Courbon, F. (2023) · Pharmaceuticals · doi:10.3390/ph16050754 · Cited by 9
“Imaging showed stable disease according to PERCIST criteria with no significant variation in SUVmax on the hottest lesion on 18FDG PET-CT before and after RLT [25].”
MethodImaging Follow-Up of Nonsurgical Therapies for Lung Cancer: AJR Expert Panel Narrative Review
Murphy, D. J., Mayoral, M., Larici, A. R., Ginsberg, M. S., Cicchetti, G., Fintelmann, F. J., Marom, E. M., Truong, M. T., & Gill, R. R. (2023) · American Journal of Roentgenology · doi:10.2214/ajr.23.29104 · Cited by 16
[18F]FDG PET/CT in the Evaluation of Melanoma Patients Treated with Immunotherapy
Losada, M. M., Romero-Robles, L. R., Melero, A. M., García-Megías, I., Torres, A. V., Garrastachu-Zumaran, P., Chollet, X. B., Lopci, E., Lasanta, R. R., & Bolton, R. D. (2023) · Diagnostics · doi:10.3390/diagnostics13050978 · Cited by 9
“The need to standardize the evaluation criteria in order to be able to apply them in clinical practice has fuelled in the last 20 years the development of a harmonized and reproducible approach to response evaluation, with the proposal of several new criteria for evaluation and interpretation issues, such as EORTC (Eu…”
MethodBiology of Cancer and PET Imaging: Pictorial Review
Sarikaya, I. (2022) · Journal of Nuclear Medicine Technology · doi:10.2967/jnmt.121.263534 · Cited by 9
“Various PET response criteria are used to better assess the response to chemotherapy, radiotherapy, and treatment with immune checkpoint inhibitors ( 26 ).”
BackgroundElevated tumor markers for monitoring tumor response to immunotherapy
Yang, Y., Jiang, X., Liu, Y., Huang, H., Xiong, Y.-L., Xiao, H., Gong, K., Li, X., Kuang, X.-J., & Yang, X.-Q. (2022) · EClinicalMedicine · doi:10.1016/j.eclinm.2022.101381 · Cited by 9
Puri, T., & Blake, G. M. (2022) · British Journal of Radiology · doi:10.1259/bjr.20210378 · Cited by 9
“31,32 Hence, there is interest in equations using factors such as BW, height, age and sex to predict LBM.”
BackgroundDynamic whole-body FDG-PET imaging for oncology studies
Tamaki, N., Kotani, T., Nishimura, M., & Kaji, T. (2022) · Clinical and translational imaging · doi:10.1007/s40336-022-00479-8 · Cited by 9
Ebbers, S., Heimgartner, M., Barentsz, M. W., van Leeuwaarde, R. V., van Treijen, M. V., Lam, M., & Braat, A. (2021) · European Journal of Hybrid Imaging · doi:10.1186/s41824-021-00116-z · Cited by 9
Woff, E., Salvatore, L., Marmorino, F., Genovesi, D., Critchi, G., Guiot, T., Ameye, L., Sclafani, F., Hendlisz, A., & Flamen, P. (2021) · Journal of Nuclear Medicine · doi:10.2967/jnumed.120.245357 · Cited by 9
“0 3 mean aorta SUL 1 2 3 SD, following PERCIST methodology (13).”
MethodFilippi, L., Frantellizzi, V., Monari, F., Rizzini, E. L., Tabacchi, E., Pirisino, R., Marongiu, A., Nuvoli, S., Bagni, O., de Vincentis, G., et al. (2021) · Diagnostics · doi:10.3390/diagnostics11071264 · Cited by 9
“The management was considered to be adequate if the Tg serum level declined by more than 50% (compared to the baseline value) following treatment modification, or if the patients showed complete (CMR) or partial metabolic response (PMR), according to PET Response Criteria in Solid Tumors (PERCIST) at the follow-up PET…”
MethodLee, S., Jeong, S. Y., Keun-young Kim, A., & Kim, S. (2021) · Annals of Nuclear Medicine · doi:10.1007/s12149-021-01639-y · Cited by 9
Hu, Q.-C., Zhang, S.-Y., Yang, K., Yin, Y., Chen, X.-L., Wang, M.-J., Zhang, B., Zhuang, W., Liu, M., Shen, C.-Y., et al. (2025) · Journal of Nuclear Medicine · doi:10.2967/jnumed.125.270633 · Cited by 8
Chondrosarcoma: Clinical Behavior, Molecular Mechanisms, and Emerging Therapeutic Strategies.
Agulnik, M., Wilky, B., Facs, S. W. T., & Zuckerman, L. M. (2025) · Critical reviews in oncology/hematology · doi:10.1016/j.critrevonc.2025.105075 · Cited by 8
The legend of the response evaluation criteria in solid tumors: A historical overview
Smesseim, I., Lipman, K. G. G., Lalezari, F., Burgers, J., & Trebeschi, S. (2025) · Cancer · doi:10.1002/cncr.70064 · Cited by 8
“2,3,6,8,13 The authors stated that an increase in tumor 18F - FDG uptake indicates disease progression, whereas a decline indicates disease response.”
Soumoy, L., Genbauffe, A., Sant’Angelo, D., Everaert, M., Mukeba-Harchies, L., Sarry, J., Declèves, A.-É., & Journé, F. (2025) · International Journal of Molecular Sciences · doi:10.3390/ijms26178241 · Cited by 8
López, I., Aliaga, A. V., & Sanz-García, E. (2025) · Critical reviews in oncology/hematology · doi:10.1016/j.critrevonc.2025.104841 · Cited by 8
Satapathy, S., Aggarwal, P., Sood, A., Chandekar, K., Das, C. K., Gupta, R., Khosla, D., Das, N., Kapoor, R., Kumar, R., et al. (2025) · European Journal of Nuclear Medicine and Molecular Imaging · doi:10.1007/s00259-025-07351-7 · Cited by 8
“SULpeak was also advantageous due to its simplicity of use and reproducibility in contrast to the volumetric parameters like SSTR-total tumor volume which require rigorous tumor segmentation, often specialized software, and currently lack standardized methodology for esti - mation [35].”
Efficacy assessment in phase I clinical trials: endpoints and challenges
Gouda, M., Ballesteros, P. A., Garrido-Laguna, I., & Rodon, J. (2025) · Annals of Oncology · doi:10.1016/j.annonc.2025.02.010 · Cited by 8
Pini, C., Kirienko, M., Gelardi, F., Bossi, P., Rahal, D., Toschi, L., Ninatti, G., Rodari, M., Marulli, G., Antunovic, L., et al. (2024) · Cancer Imaging · doi:10.1186/s40644-024-00807-3 · Cited by 8
“Frequently, SUV values are mentioned in the scan reports and its use is becoming more and more common especially among clinicians [36].”
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
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