Reduction in thyroid volume after radioiodine therapy of Graves' hyperthyroidism: results of a prospective, randomized, multicentre study
Abstract
The reduction in thyroid size in 92 patients treated with radioiodine for Graves' thyrotoxicosis was monitored by ultrasound volumetry. The patients were randomly treated with either a standard 131 I activity of 555 MBq or an activity calculated to deliver a thyroid dose of 100 Gy. Within 1 year after radioiodine treatment, a remarkable volume reduction of about 71% (median) (quantile 25% (Q 25) = 49%, Q 75 = 82%, n = 67) was observed. The bulk of this reduction (median 57%, Q 25 = 21%, Q 75 = 74%, n = 92) was found within the first 6 months. Statistical analysis reveals that the effect was clearly related to the thyroid dose actually achieved during therapy. The median reduction obtained 6 months after radioiodine application was 45% for <100 Gy, 56% for 100–200 Gy and 67% for >200 Gy (n = 28, 39, 25 respectively). Twelve months after radioiodine application, the effect became less evident: 53%, 68% and 75% respectively (n = 17, 29, 21). The higher median thyroid dose actually achieved by standard than by calculated activity (215 Gy vs. 116 Gy) explains the more pronounced volume reduction in the standard group than in the calculated group: 60% vs. 47% 6 months (n = 47, 45) after radioiodine treatments and 74% vs. 66% 12 months (n = 31, 36) after radioiodine application. The relative reduction in thyroid size was just as marked in patients with large thyroids as in those with small glands. The goitre prevalence (thyroid volume > 20 mL in women and > 25 mL in men) was reduced from 73% to only 16% 1 year after radioiodine treatment. In patients with a thyroid volume of more than 60 mL, the median pretherapeutic thyroid volume of 102 mL was reduced to 29 mL. In conclusion, radioiodine treatment in Graves' hyperthyroidism sufficiently reduces thyroid volume in a dose‐dependent manner. The findings of this study demonstrate that radioiodine is also an attractive mode of therapy for Graves' patients with substantial thyroid enlargement.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
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?
Evidence shows that to achieve a hypothyroid state, more than 150 microcuries per gram (5.55 MBq/g) needs to be delivered.
“Evidence shows that to achieve a hypothyroid state, >150 lCi/g (5.55 MBq/g) needs to be delivered (88)(89)(90).”
From 2016 American Thyroid Association Guidelines for Diagnosis and Management of Hyperthyroidism and Other Causes of Thyrotoxicosis (2016) · cites this paper as [90]
In individuals with large thyroid glands (>80 g), the response to RAI may be poor.
“In individuals with large thyroid glands (>80 g), the response to RAI may be poor (88,90) and surgery also may be preferable for these patients.”
From 2016 American Thyroid Association Guidelines for Diagnosis and Management of Hyperthyroidism and Other Causes of Thyrotoxicosis (2016) · cites this paper as [90]
There are poor remission rates with low-administered activities of RAI.
“Because of an increased risk of thyroid nodules and cancer associated with low-level thyroid irradiation in children (314,(352)(353)(354)) and poor remission rates with low-administered activities of RAI (88)(89)(90), it is important that RAI activities >150 lCi (>5.55 MBq/g) rather than smaller activities of RAI be administered to achieve hypothyroidism (312).”
From 2016 American Thyroid Association Guidelines for Diagnosis and Management of Hyperthyroidism and Other Causes of Thyrotoxicosis (2016) · cites this paper as [90]
The administered activity of RAI to patients with very large goiters is high, and a tendency exists to underestimate the size of the gland and thereby administer insufficient RAI activities to these patients.
“The administered activity of RAI to patients with very large goiters is high, and a tendency exists to underestimate the size of the gland (and thereby administer insufficient RAI activities to these patients) (90).”
From 2016 American Thyroid Association Guidelines for Diagnosis and Management of Hyperthyroidism and Other Causes of Thyrotoxicosis (2016) · cites this paper as [90]
Cited by
Sorted by citations
Ross, D. S., Burch, H. B., Cooper, D. S., Greenlee, M. C., Laurberg, P., Maia, A. L., Rivkees, S. A., Samuels, M., Sosa, J. A., Stan, M. N., et al. (2016) · Thyroid® · doi:10.1089/thy.2016.0229 · Cited by 2,938 · see citing works
“In individuals with large thyroid glands (>80 g), the response to RAI may be poor (88,90) and surgery also may be preferable for these patients.”
BackgroundBahn, R. S., Burch, H. B., Cooper, D. S., Garber, J. R., Greenlee, M. C., Klein, I., Laurberg, P., McDougall, I. R., Montori, V. M., Rivkees, S. A., et al. (2011) · Endocrine Practice · doi:10.4158/ep.17.3.456 · Cited by 1,098 · see citing works
“In individuals with large thyroid glands (>80 g), the response to 131I may be poor (64,65); surgery also may be preferable for these patients.”
BackgroundInfluentialThe American Thyroid Association and American Association of Clinical Endocrinologists Taskforce on Hyperthyroidism and Other Causes of Thyrotoxicosis, Bahn, R. S., Burch, H. B., Cooper, D. S., Garber, J. R., Greenlee, M. C., Klein, I., Laurberg, P., McDougall, I. R., Montori, V. M., et al. (2011) · Thyroid · doi:10.1089/thy.2010.0417 · Cited by 898 · see citing works
Bonnema, S. J., & Hegedűs, L. D. (2012) · Endocrine Reviews · doi:10.1210/er.2012-1030 · Cited by 338 · see citing works
Strigari, L., Konijnenberg, M., Chiesa, C., et al. (2014) · European Journal of Nuclear Medicine and Molecular Imaging · doi:10.1007/s00259-014-2824-5 · Cited by 240 · see citing works
“Peters et al [19, 20] reported a prospective RCT on radioiodine treatment in 205 patients with Graves’ hyperthyroidism.”
An Optimal Treatment for Pediatric Graves’ Disease Is Radioiodine
Rivkees, S. A., & Dinauer, C. (2007) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2006-1239 · Cited by 158 · see citing works
“When thyroid size exceeds 80 g, remission rates after (131)I therapy are poor (28).”
BackgroundTreatment of Graves' Hyperthyroidism with Radioiodine: Results of a Prospective Randomized Study
PETERS, H., FISCHER, C., BOGNER, U., REINERS, C., & SCHLEUSENER, H. (1997) · Thyroid · doi:10.1089/thy.1997.7.247 · Cited by 121 · see citing works
Self-citationChiovato, L., Fiore, E., Vitti, P., Rocchi, R., Rago, T., Dokić, D., Latrofa, F., Mammoli, C., Lippi, F., Ceccarelli, C., et al. (1998) · Journal of Clinical Endocrinology and Metabolism · doi:10.1210/jcem.83.1.4492 · Cited by 146 · see citing works
“Changes in thyroid histology are associated with a reduction in thyroid volume ( 9 ), which reflects thyroid damage.”
BackgroundResultSuccess Rate of Radioiodine Therapy in Graves' Disease: The Influence of Thyrostatic Medication
Sabri, O., Zimny, M., Schulz, G., Schreckenberger, M., Reinartz, P., Willmes, K., & Buell, U. (1999) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jcem.84.4.5588 · Cited by 129 · see citing works
“Concerning thyroid volume reduction after 131I therapy, we found comparable reduction rates (25, 29 ).”
Propylthiouracil (PTU) Hepatoxicity in Children and Recommendations for Discontinuation of Use
Rivkees, S. A., & Mattison, D. R. (2009) · International Journal of Pediatric Endocrinology · doi:10.1155/2009/132041 · Cited by 135 · see citing works
“In individuals with large thyroid glands (>80 gms), the response to 131I will be poor [76, 77], and surgery is recommended for patients with large glands.”
BackgroundPediatric Graves’ Disease: Controversies in Management
Rivkees, S. A. (2010) · Hormone Research in Paediatrics · doi:10.1159/000320028 · Cited by 102 · see citing works
Reinhardt, M. J., Brink, I., Joe, A., von Mallek, D., Ezziddin, S., PALMEDO, H., & Krause, T. (2002) · European Journal of Nuclear Medicine and Molecular Imaging · doi:10.1007/s00259-002-0877-3 · Cited by 91 · see citing works
“In such patients, the tissue-absorbed dose was found to exceed 200 Gy [ 41 ].”
BackgroundPropylthiouracil (PTU) Hepatoxicity in Children and Recommendations for Discontinuation of Use
Rivkees, S., & Mattison, D. (2009) · International Journal of Pediatric Endocrinology · doi:10.1186/1687-9856-2009-132041 · Cited by 90 · see citing works
Influence of Iodine-131 Dose on the Outcome of Hyperthyroidism in Children
Rivkees, S. A., & Cornelius, E. A. (2003) · Pediatrics · doi:10.1542/peds.111.4.745 · Cited by 88 · see citing works
Controversies in the management of Graves’ disease in children
Rivkees, S. A. (2016) · Journal of Endocrinological Investigation · doi:10.1007/s40618-016-0477-x · Cited by 77 · see citing works
“In individuals who have large thyroid glands (>80 gm), the response to (131)I is poor [65, 86].”
BackgroundResultCurrent concepts in Graves’ disease
Girgis, C. M., Champion, B. L., & Wall, J. R. (2011) · Therapeutic Advances in Endocrinology and Metabolism · doi:10.1177/2042018811408488 · Cited by 73 · see citing works
“Patients receiving fixed doses of RAI may have higher response rates but are usually exposed to more radiation and also have higher rates of long-term hypothyroidism [Peters et al. 1996].”
BackgroundGuidelines for the treatment of childhood-onset Graves’ disease in Japan, 2016
Minamitani, K., Sato, H., Ohye, H., Harada, S., & Arisaka, O. (2017) · Clinical Pediatric Endocrinology · doi:10.1297/cpe.26.29 · Cited by 54 · see citing works
“Indications 131I therapy is a reliable, effective, and safe treatment for Graves’ disease (149, 150).”
BackgroundThe Treatment of Graves' Disease in Children
Rivkees, S. A. (2006) · Journal of Pediatric Endocrinology and Metabolism · doi:10.1515/jpem.2006.19.9.1095 · Cited by 48 · see citing works
Pediatric Graves’ disease: management in the post-propylthiouracil Era
Rivkees, S. A. (2014) · International Journal of Pediatric Endocrinology · doi:10.1186/1687-9856-2014-10 · Cited by 46 · see citing works
“poor [63,117].”
Sabri, O., Zimny, M., Schreckenberger, M., Reinartz, P., Ostwald, E., & Buell, U. (1999) · Thyroid · doi:10.1089/thy.1999.9.1181 · Cited by 34 · see citing works
“By aiming for a target dose of 250 Gy, we achieved a success rate of 85% in the carbimazole-off patients (which agrees with the results of Peters et al. [4,12]), the remaining failures being due to their not reaching 250 Gy.”
Traino, C., Martino, F. D., Lazzeri, M., et al. (1999) · Physics in Medicine and Biology · doi:10.1088/0031-9155/45/1/309 · Cited by 34 · see citing works
Martino, F. D., Traino, C., Brill, A. B., et al. (2002) · Physics in Medicine and Biology · doi:10.1088/0031-9155/47/9/305 · Cited by 31 · see citing works
Surgical management of pediatric Graves’ disease: an effective definitive treatment
Peroni, E., Angiolini, M. R., Vigone, M. C., Mari, G., Chiumello, G., Beretta, E., & Weber, G. (2012) · Pediatric Surgery International · doi:10.1007/s00383-012-3095-5 · Cited by 30 · see citing works
“Clear indications for thyroidectomy include large glands ([80 g) due to a poor response to RAI [12, 13], obstructive or compressive symptoms, requirement for immediate control of the disease, and age younger than 5 years.”
BackgroundNakatake, N., Fukata, S., & Tajiri, J. (2011) · International Journal of Pediatric Endocrinology · doi:10.1186/1687-9856-2011-14 · Cited by 19 · see citing works
“Changes in post-RAI thyroid volume have been investigated in adult GD patients [10,23-26], but not in pediatric and/or adolescent patients [3].”
BackgroundCury, A. N., Meira, V. T., Monte, O., Marone, M. M. S., Scalissi, N. M., Kochi, C., Calliari, L. E., & Longui, C. A. (2012) · Endocrine Connections · doi:10.1530/ec-12-0049 · Cited by 21 · see citing works
Traino, C., Martino, F. D., & Lazzeri, M. (2004) · Medical Physics · doi:10.1118/1.1763411 · Cited by 20 · see citing works
Radioactive Iodine for Thyrotoxicosis in Childhood and Adolescence: Treatment and Outcomes
Namwongprom, S., Unachak, K., Dejkhamron, P., Supoj, U.-A., & Ekmahachai, M. (2013) · Journal of Clinical Research in Pediatric Endocrinology · doi:10.4274/jcrpe.951 · Cited by 17 · see citing works
“tissue, have been reported to influence treatment outcome (9,14).”
BackgroundElser, H., Haufe, S., Ziegler, R., et al. (1997) · Nuklearmedizin - NuclearMedicine · doi:10.1055/s-0038-1629865 · Cited by 18 · see citing works
Carlier, T., Salaün, P., Cavarec, M.-B., Valette, F., Turzo, A., Bardiès, M., Bizais, Y., & Couturier, O. (2006) · Nuclear Medicine Communications · doi:10.1097/00006231-200607000-00003 · Cited by 17 · see citing works
Traino, C., Martino, F. D., Grosso, M., Monzani, F., Dardano, A., Caraccio, N., Mariani, G., & Lazzeri, M. (2005) · Physics in Medicine and Biology · doi:10.1088/0031-9155/50/9/018 · Cited by 18 · see citing works
Ito, M., Kawasaki, M., Danno, H., Kohsaka, K., Nakamura, T., Hisakado, M., Yoshioka, W., Kasahara, T., Kudo, T., Nishihara, E., et al. (2019) · Thyroid · doi:10.1089/thy.2019.0135 · Cited by 16 · see citing works
Difficult Problems in Thyroid Surgery
Prinz, R. A. (2002) · Current Problems in Surgery · doi:10.1067/msg.2002.120240 · Cited by 14 · see citing works
“Surgical resection is the treatment of choice for very large goiters that are either toxic or nontoxic, especially if compressive symptoms are present.(90,91,93,94,97,107,112,113) Surgical treatment of very large goiters also provides tissue for pathologic diagnosis and removes possible malignancy.”
BackgroundResultInfluentialMonpeyssen, H., & Tramalloni, J. (2006) · EMC - Endocrinologie - Nutrition · doi:10.1016/s1155-1941(06)40618-1 · Cited by 14 · see citing works
Outcome of treatment of hyperthyroidism
Bringmann, I. M., van Leeuwen, B. L., Hennemann, G., et al. (1999) · Journal of Endocrinological Investigation · doi:10.1007/bf03343552 · Cited by 12 · see citing works
Approach to the Patient: Management and the Long-term Consequences of Graves' Disease in Children
Rivkees, S. A. (2022) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/clinem/dgac573 · Cited by 10 · see citing works
Should radioiodine be the first-line treatment for paediatric Graves’ disease?
West, J. D., Cheetham, T. D., Dane, C., & Natarajan, A. (2015) · Journal of Pediatric Endocrinology and Metabolism · doi:10.1515/jpem-2014-0176 · Cited by 9 · see citing works
Tratamento do hipertireoidismo da Doença de Graves
Andrade, V. A., Gross, J. L., & Maia, A. (2001) · Arquivos Brasileiros de Endocrinologia & Metabologia · doi:10.1590/s0004-27302001000600014 · Cited by 12 · see citing works
Scarred atrophic thyroid after I-131 therapy for Graves' disease documented at autopsy.
Shih, W.-J., Mitchell, B. L., & Schott, J. C. (2002) · PubMed · Cited by 9 · see citing works
Thyroid Disorders in Children and Adolescents
Rivkees, S. A., & Bauer, A. J. (2021) · Elsevier eBooks · doi:10.1016/b978-0-323-62520-3.00013-0 · Cited by 9 · see citing works
English, C., Casey, R., Bell, M., Bergin, D., & Murphy, J. M. (2016) · Ultrasound in Medicine and Biology · doi:10.1016/j.ultrasmedbio.2015.09.011 · Cited by 5 · see citing works
dos Santos, T. A. R. R., Marui, S., Watanabe, T., et al. (2019) · Ultraschall in der Medizin - European Journal of Ultrasound · doi:10.1055/a-0902-4842 · Cited by 8 · see citing works
Arora, S., & Bal, C. S. (2021) · Nuclear Medicine and Molecular Imaging · doi:10.1007/s13139-020-00674-3 · Cited by 8 · see citing works
Thyroid disorders in children and adolescents
Rivkees, S. A. (2014) · Elsevier eBooks · doi:10.1016/b978-1-4557-4858-7.00021-4 · Cited by 7 · see citing works
Eficacia del tratamiento con I131 en la enfermedad de Graves pediátrica
Romero, P. E., Martín-Frías, M., de Jesús, M., Loscos, C. C., Alonso‐Blanco, C., & Castellanos, R. B. (2013) · Anales de Pediatría · doi:10.1016/j.anpedi.2013.01.023 · Cited by 6 · see citing works
Thyroid Disorders in Children and Adolescents
Rivkees, S. A. (2002) · Humana Press eBooks · doi:10.1007/978-1-59259-156-5_7 · Cited by 6 · see citing works
Rahman, Z., Mirza, S. M., Arshed, W., et al. (2014) · Chinese Physics C · doi:10.1088/1674-1137/38/5/056201 · Cited by 5 · see citing works
Endokrine Orbitopathie aus internistischer Sicht
Laubner, K., Weber, W., & Seufert, J. (2011) · Der Ophthalmologe · doi:10.1007/s00347-010-2185-9 · Cited by 4 · see citing works
Treatment of Hyperthyroidism Due to Graves’Disease in Children
Rivkees, S. A. (2006) · KARGER eBooks · doi:10.1159/000098030 · Cited by 4 · see citing works
Iodine-131 Radiotherapy for Benign Thyroid Disease
Kwee, S. A., Coel, M. N., & Fitz-Patrick, D. (2007) · CRC Press eBooks · doi:10.3109/9781420016642-11 · Cited by 4 · see citing works
Baberwal, P., & Basu, S. K. (2025) · Expert Review of Precision Medicine and Drug Development · doi:10.1080/23808993.2025.2589524 · Cited by 4 · see citing works
“In cases of benign thyroid diseases like Graves’ disease, an absorbed dose of 200 Gy lead to successful treatment in 80% of cases [240].”
Yan, S.-C., Li, X., & Yan, B. (2023) · Thyroid · doi:10.1089/thy.2023.0332 · Cited by 1 · see citing works
Yu, F., Ma, W., Li, X., Zhang, R., Kang, F., Yang, W., Wang, R., & Wang, J. (2024) · Frontiers in Endocrinology · doi:10.3389/fendo.2024.1391014 · Cited by 3 · see citing works
Tramalloni, J., & Monpeyssen, H. (2006) · EMC - Radiologie et imagerie médicale - Cardiovasculaire - Thoracique - Cervicale · doi:10.1016/s1879-8535(06)74694-3 · Cited by 2 · see citing works
Eary, J. F. (2007) · CRC Press eBooks · doi:10.3109/9781420016642-4 · Cited by 2 · see citing works
Hyperthyroidism, Childhood and Adolescence
Rivkees, S. A. (2018) · Elsevier eBooks · doi:10.1016/b978-0-12-801238-3.95991-9 · Cited by 2 · see citing works
Predictive factors for the outcome of radioiodine therapy in patients with benign thyroid diseases
Wedel, F., Exarchopoulos, T., & Brenner, W. (2024) · Nuklearmedizin - NuclearMedicine · doi:10.1055/a-2191-3113 · Cited by 1 · see citing works
“…literature, volume reduction after 3 and 12 months were both dependent on the type of disease [6], and the extent of relative volume reduction was comparable to other studies showing the greatest decrease in volume in patients with GD with 58 % after 3 months and 71 % after 12 months [7, 8, 9, 10].”
ResultShin, D., Chae, Y., Yun, T., Kang, B., & Kim, H. (2025) · Journal of Feline Medicine and Surgery · doi:10.1177/1098612x251395870 · Cited by 1 · see citing works
“38 Although the earlier study 11 observed serum IGF-1 concentration increase after thiamazole administration, the drug’s inability to reduce thyroid mass limits its capacity to exclude the possibility that IGF-1 is secreted by hyperplastic thyroid cells.”
Hypothyroidism and Radioiodine Therapy
Kraft, O. (2012) · InTech eBooks · doi:10.5772/32408 · Cited by 1 · see citing works
Treatment of 1035 Hyperthyroid Patients with 131Iodine
., M.-H. B., Larijani, B. A., Rahim-Tabrizi, P., ., A.-R. K.-F., & Baradar-Jalili, R. (2005) · International Journal of Pharmacology · doi:10.3923/ijp.2006.116.120 · Cited by 1 · see citing works
(2000) · Time to knit · doi:10.1016/s1169-7768(03)08001-9 · Cited by 1 · see citing works
Rivkees, S. A. (2015) · Springer eBooks · doi:10.1007/978-1-4939-2534-6_11
Thyroid Surgery in Paediatric Patients
Rivkees, S. A., Breuer, C. K., & Udelsman, R. (2012) · Wiley eBooks · doi:10.1002/9781118444832.ch4
Radioiodine therapy for hyperthyroidism
Fard‐Esfahani, P., Beiki, D., Fallahi, B., Fard‐Esfahani, A., Emami-Ardekani, A., Ansari, M., & Eftekhari, M. (2011) · Iranian Journal of Nuclear Medicine
Radioiodine treatment of hyperthyroidism in patients with low thyroid iodine uptake
Dolata, M., Junik, R., Gembicki, M., et al. (2005)
Chng, C. L. (2018) · Springer eBooks · doi:10.1007/978-981-10-1124-5_2
Tramalloni, J., & Monpeyssen, H. (2021) · Elsevier eBooks · doi:10.1016/b978-2-294-77220-7.00007-7
Tramalloni, J., & Monpeyssen, H. (2021) · Elsevier eBooks · doi:10.1016/b978-2-294-77220-7.00006-5
Tramalloni, J., & Monpeyssen, H. (2013) · Elsevier eBooks · doi:10.1016/b978-2-294-71128-2.00006-0
Radionuclide Therapy in Benign Thyroid Diseases: Graves’ Disease
Araz, M., & Özkan, E. (2022) · Springer eBooks · doi:10.1007/978-3-030-97220-2_5
THE RESULTS OF RADIOIODINE TREATMENT IN PATIENTS WITH THYROTOXICOSIS IN THE REPUBLIC OF BELARUS
Galitskaya, S. S., Mokhort, T. V., & Крутько, И. В. (2008) · Health and Ecology Issues · doi:10.51523/2708-6011.2008-5-3-3
Hyperthyroidism in childhood and adolescence
Rivkees, S. A. (2024) · Elsevier eBooks · doi:10.1016/b978-0-443-13825-6.00086-8
Hyperthyroidism, Childhood and Adolescence
Rivkees, S. A. (2004) · Elsevier eBooks · doi:10.1016/b0-12-475570-4/01485-2
Tachibana, S., Ohara, T., Nagayama, Y., et al. (2026) · Endocrine Research · doi:10.1080/07435800.2026.2701045
Tramalloni, J., & Monpeyssen, H. (2013) · Elsevier eBooks · doi:10.1016/b978-2-294-71128-2.00007-2
- Authors
- PETERS, H., FISCHER, C., BOGNER, U., REINERS, C., & SCHLEUSENER, H.
- Affiliations
- Freie Universität Berlin (DE)
- Heidelberg University (DE)
- University of Würzburg (DE)
- Corresponding author
- SCHLEUSENER, H.
- Venue
- European Journal of Clinical Investigation
- Publisher
- Wiley
- Published
- 1996-01
- Volume
- 26
- Issue
- 1
- Pages
- 59-63
- ISSN
- 0014-2972 (ISSN-L)
- 1365-2362
- OpenAlex
- W2014302771
- Cited by
- 74
- References
- 0
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 3 · 2023: 1 · 2022: 2 · 2021: 4 · 2019: 3 · 2018: 2 · 2017: 1 · 2016: 2 · 2015: 3 · 2014: 4 · 2013: 4 · 2012: 5
- FWCI
- 1.83
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- European Journal of Clinical Investigation (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
- Health Sciences › Medicine › Surgery › Thyroid and Parathyroid Surgery
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Cancer Diagnosis and Treatment
- Keywords
- Graves' disease, Graves' hyperthyroidism, radioiodine therapy, iodine-131, thyroid volume reduction, thyroid dose, dose-response relationship, goiter, thyroid size, thyrotoxicosis, prospective study, dose reduction
- MeSH terms
- Adult, Aged, Aged, 80 and over, Data Interpretation, Statistical, Dose-Response Relationship, Radiation, Female, Goiter, Graves Disease, Humans, Iodine Radioisotopes, Male, Middle Aged, Prospective Studies, Time Factors
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