ACR logo

Appropriateness Criteria

Reference Study Type Patients/Events Study Objective(Purpose of Study) Study Results Study Quality
1. Kebebew E, Reiff E, Duh QY, Clark OH, McMillan A. Extent of disease at presentation and outcome for adrenocortical carcinoma: have we made progress? World J Surg 2006;30:872-8. Review/Other-Dx NA No objective stated in absract. The average age was 51.2 years (range: 1-97), and 45.9% of patients were men. The average tumor size was 12 cm (range: 2-36 cm), and only 4.2% were < or = 6 cm. Most (88%) patients had surgical resection of their tumor, and external beam radiotherapy was used in only 12% of patients. Between the time quartiles compared (as well as annually), there was no significant difference at presentation in age at diagnosis, sex, race/ethnicity, tumor size, tumor grade, the frequency of distant metastasis, and overall TNM stage. Low tumor grade, lower stage of ACC, later time quartile, and surgical resection were associated with a lower cause-specific mortality by univariate analysis (P < or = 0.002) and by multivariate analysis (P < or = 0.031). 4
2. Kerkhofs TM, Verhoeven RH, Van der Zwan JM, et al. Adrenocortical carcinoma: a population-based study on incidence and survival in the Netherlands since 1993. Eur J Cancer 2013;49:2579-86. Review/Other-Dx 359 patients The aim of this nationwide survey was to describe the incidence and survival rates of ACC in the Netherlands. Secondary objectives were to evaluate changes in both survival rates and the number of patients undergoing surgery. Included were 359 patients, 196 of whom were female (55%). Median age at diagnosis was 56 years (range 1-91). The 5-year age-standardised incidence rate decreased from 1.3 to 1.0 per one million person-years. Median survival for patients with stage I-II, stage III and stage IV disease was 159 months (95% confidence interval (CI) 93-225 months), 26 months (95% CI: 4-48 months) and 5 months (95% CI: 2-7 months), respectively (P<0.001). Improvement in survival was not observed, as reflected by the lack of association between survival and time of diagnosis. The percentage of patients receiving treatment within 6 months after diagnosis increased significantly from 76% in 1993-1998 to 88% in 2005-2010 (P=0.047), mainly due to an increase in surgery for stage III-IV patients. 4
3. Wolf KI, Rose-Krasnor L, Alband S, Lenders JWM, Fishbein L. Patient-reported burden associated with pheochromocytoma/paraganglioma diagnosis. Endocr Relat Cancer 2024;31. Review/Other-Dx NA No objective stated in abstract. No results stated in abstract. 4
4. Ayala-Ramirez M, Jasim S, Feng L, et al. Adrenocortical carcinoma: clinical outcomes and prognosis of 330 patients at a tertiary care center. Eur J Endocrinol 2013;169:891-99. Review/Other-Dx 330 patients Adrenocortical carcinoma (ACC) is a rare malignancy with a poor prognosis. Herein, we describe the clinical features and outcomes for a large series of ACC patients. A total of 330 patients with median age at diagnosis of 48.5 years; 12 (3.6%) patients were under 18 years. Hormonally functioning tumors represented 41.8% (n=138) of all cases. Surgical resection for the primary tumor was done in 275 (83.3%) patients (45 at MD Anderson (16.4%)). For those who had surgical resection, the median local-recurrence-free time was 1.04 years. Factors associated with local recurrence included positive surgical margins (P=0.007) and advanced disease stage (P=0.026). Median overall survival time for all patients was 3.21 years. Median survival times were 24.1, 6.08, 3.47, and 0.89 years for stages I, II, III, and IV respectively. In multivariable analysis, older age, functioning tumors, and higher disease stage remained significant prognostic factors associated with poor survival. 4
5. Tella SH, Kommalapati A, Yaturu S, Kebebew E. Predictors of Survival in Adrenocortical Carcinoma: An Analysis From the National Cancer Database. Journal of Clinical Endocrinology & Metabolism. 103(9):3566-3573, 2018 09 01. Observational-Tx 3185 cases To describe predictors of survival and overall survival (OS) outcomes. Median age at ACC diagnosis was 55 (range: 18 to 90) years; did not differ significantly by sex or stage of the disease at diagnosis. On multivariate analysis, increasing age, higher Charlson-Deyo comorbidity index score, high tumor grade, and no surgical therapy (all P < 0.0001); and stage IV disease (P = 0.002) and lymphadenectomy during surgery (P = 0.02) were associated with poor prognosis. Patients with stage I-III disease treated with surgical resection had significantly better median OS (63 vs 8 months; P < 0.001). In stage IV disease, better median OS occurred in patients treated with surgery (19 vs 6 months; P < 0.001), and postsurgical radiation (29 vs 10 months; P < 0.001) or chemotherapy (22 vs 13 months; P = 0.004). 2
6. Ichijo T, Ueshiba H, Nawata H, Yanase T. A nationwide survey of adrenal incidentalomas in Japan: the first report of clinical and epidemiological features. Endocr J. 67(2):141-152, 2020 Feb 28. Review/Other-Dx 3672 cases The aim of this study was to reveal clear epidemiologic and clinical characteristics of incidentally discovered adrenal masses, termed adrenal incidentalomas (AIs), and to establish appropriate managemental and therapeutic regimens in Japan. NThis nationwide multicenter study on AIs included 3,672 cases with clinically diagnosed AIs, involving 1,874 males and 1,738 females, with mean age 58.1 ± 13.0 years (mean ± SD). In the present study, we focused on the investigation of the real prevalence of various adrenal disorders with AI. The mean nodule size of AI based on computed tomography was 3.0 ± 2.0 cm. Compared to non-functioning adenomas (NFAs), tumor diameters were significantly larger in adrenocortical carcinomas (ACCs), pheochromocytomas, cortisol-producing adenomas (CPAs), myelolipomas, metastatic tumors, cysts, and ganglioneuromas (p < 0.01). Endocrinological evaluations demonstrated that 50.8% of total AIs were non-functioning adenomas, while 10.5%, including 3.6% with subclinical Cushing's syndrome, were reported as CPAs, 8.5% as pheochromocytomas, and 5.1% as aldosterone-producing adenomas. ACCs were accounted for 1.4% (50 cases) among our series of AIs. 4
7. Aggarwal S, Prete A, Chortis V, et al. Pheochromocytomas Most Commonly Present As Adrenal Incidentalomas: A Large Tertiary Center Experience. J Clin Endocrinol Metab 2023;109:e389-e96. Review/Other-Dx 167 patients We aimed to assess the proportion and clinical, biochemical, radiological, genetic, histopathological, and follow-up characteristics of incidental pheochromocytomas. We identified 167 patients with pheochromocytoma; 144 (86.2%) underwent adrenalectomy, for 23 (13.8%) surgery was either awaited, deemed unsuitable due to frailty or other metastatic malignancy, or declined by the patients. Excluding pheochromocytomas diagnosed via screening genetically predisposed individuals (N = 20), 37 of 132 (28.0%) presented with adrenergic symptoms and/or uncontrolled hypertension, while 91 of 132 (69.0%) patients presented with an incidentally detected adrenal mass. Incidentally detected patients were older (median age 62 years) than those detected due to clinical suspicion (aged 42 years) or after genetic screening (aged 33 years) (all P < .05). Incidentally detected pheochromocytomas were smaller (median 42 mm) than tumors detected due to adrenergic symptoms/uncontrolled hypertension (60 mm), but larger than tumors identified by genetic screening (30 mm) (all P < .05). Increased MN excretion showed a similar pattern (symptomatic/uncontrolled hypertension > incidental > genetic screening) (all P < .05). Hereditary predisposition was detected in 20.4% of patients (incidental, 15.3%; symptomatic/uncontrolled hypertension, 42.9%). 4
8. Jimenez C, Ma J, Roman Gonzalez A, et al. TNM Staging and Overall Survival in Patients With Pheochromocytoma and Sympathetic Paraganglioma. Journal of Clinical Endocrinology & Metabolism. 108(5):1132-1142, 2023 04 13. Observational-Dx 458 patients The objective of this analysis is to investigate the associations between TNM staging and overall survival (OS). The study included 458 patients. Median OS was 18.0 (95% CI, 15.6-not reached) years. At diagnosis, 126 (27.5%) tumors were stage I, 213 (46.5%) were stage II, 47 (10.3%) were stage III, and 72 (15.7%) were stage IV. The 10-year OS probabilities were 0.844 (95% CI, 0.768-0.928) for patients with stage I tumors, 0.792 (95% CI, 0.726-0.865) for stage II, 0.595 (95% CI, 0.435-0.813) for stage III, and 0.221 (95% CI, 0.127-0.384) for stage IV. Compared with stage I, the hazard ratios (HR) for death were 1.50 (0.87-2.57) for stage II, 2.85 (1.45-5.63) for stage III, and 8.88 (5.16-15.29) for stage IV (P < 0.001). Compared with patients with no germline mutations, those with RET 634/918 had better OS (HR: 0.28; 95% CI, 0.12-0.69). Other germline mutations, including SDHB, did not exhibit worse OS than patients with metastasis and sporadic disease. 3
9. Taïeb D, Hicks RJ, Hindié E, et al. European Association of Nuclear Medicine Practice Guideline/Society of Nuclear Medicine and Molecular Imaging Procedure Standard 2019 for radionuclide imaging of phaeochromocytoma and paraganglioma. Eur J Nucl Med Mol Imaging. 2019 Sep;46(10):2112-2137. Review/Other-Dx NA Diverse radionuclide imaging techniques are available for the diagnosis, staging, and follow-up of phaeochromocytoma and paraganglioma (PPGL). Beyond their ability to detect and localise the disease, these imaging approaches variably characterise these tumours at the cellular and molecular levels and can guide therapy. Here we present updated guidelines jointly approved by the EANM and SNMMI for assisting nuclear medicine practitioners in not only the selection and performance of currently available single-photon emission computed tomography and positron emission tomography procedures, but also the interpretation and reporting of the results. Since the European Association of Nuclear Medicine 2012 guidelines, the excellent results obtained with gallium-68 (68Ga)-labelled somatostatin analogues (SSAs) in recent years have simplified the imaging approach for PPGL patients that can also be used for selecting patients for peptide receptor radionuclide therapy as a potential alternative or complement to the traditional theranostic approach with iodine-123 (123I)/iodine-131 (131I)-labelled meta-iodobenzylguanidine. Genomic characterisation of subgroups with differing risk of lesion development and subsequent metastatic spread is refining the use of molecular imaging in the personalised approach to hereditary PPGL patients for detection, staging, and follow-up surveillance. 4
10. Fassnacht M, Dekkers OM, Else T, et al. European Society of Endocrinology Clinical Practice Guidelines on the management of adrenocortical carcinoma in adults, in collaboration with the European Network for the Study of Adrenal Tumors. European Journal of Endocrinology. 179(4):G1-G46, 2018 10 01. Review/Other-Dx NA The purpose of these guidelines is to provide clinicians with best possible evidence-based recommendations for clinical management of patients with ACC based on the GRADE (Grading of Recommendations Assessment, Development and Evaluation) system. No results stated in abstract. 4
11. NCCN Clinical Practice Guidelines in Oncology. Neuroendocrine and Adrenal Tumors. Version 1.2025.  Available at: https://www.nccn.org/professionals/physician_gls/pdf/neuroendocrine.pdf. Review/Other-Dx NA No abstract available No abstract available 4
12. Yip L, Duh QY, Wachtel H, et al. American Association of Endocrine Surgeons Guidelines for Adrenalectomy: Executive Summary. JAMA Surg. 157(10):870-877, 2022 10 01. Review/Other-Dx N/A To develop evidence-based recommendations to enhance the appropriate, safe, and effective approaches to adrenalectomy. Patients with an adrenal incidentaloma 1 cm or larger should undergo biochemical testing and further imaging characterization. Adrenal protocol computed tomography (CT) should be used to stratify malignancy risk and concern for pheochromocytoma. Routine scheduled follow-up of a nonfunctional adrenal nodule with benign imaging characteristics and unenhanced CT with Hounsfield units less than 10 is not suggested. When unilateral disease is present, laparoscopic adrenalectomy is recommended for patients with primary aldosteronism or autonomous cortisol secretion. Patients with clinical and radiographic findings consistent with adrenocortical carcinoma should be treated at high-volume multidisciplinary centers to optimize outcomes, including, when possible, a complete R0 resection without tumor disruption, which may require en bloc radical resection. Selective or nonselective a blockade can be used to safely prepare patients for surgical resection of paraganglioma/pheochromocytoma. Empirical perioperative glucocorticoid replacement therapy is indicated for patients with overt Cushing syndrome, but for patients with mild autonomous cortisol secretion, postoperative day 1 morning cortisol or cosyntropin stimulation testing can be used to determine the need for glucocorticoid replacement therapy. When patient and tumor variables are appropriate, we recommend minimally invasive adrenalectomy over open adrenalectomy because of improved perioperative morbidity. Minimally invasive adrenalectomy can be achieved either via a retroperitoneal or transperitoneal approach depending on surgeon expertise, as well as tumor and patient characteristics. 4
13. Mody RN, Remer EM, Nikolaidis P, et al. ACR Appropriateness Criteria® Adrenal Mass Evaluation: 2021 Update. J Am Coll Radiol 2021;18:S251-S67. Review/Other-Dx M/A Evidence-based guidelines to assist referring physicians and other providers in making the most appropriate imaging or treatment decision for adrenal mass evaluation. No results stated in abstract. 4
14. Angeli A, Osella G, Ali A, Terzolo M. Adrenal incidentaloma: an overview of clinical and epidemiological data from the National Italian Study Group. Horm Res. 1997; 47(4-6):279-283. Review/Other-Dx 887 patients To perform a multicentric retrospective analysis of adrenal masses incidentally discovered (adrenal incidentalomas). Majority of patients were in the 5th and 6th decade and females were predominantly affected. The frequency of adrenocortical cancer was 12% among operated patients (316 cases). The tumor diameter was highly correlated with the risk of malignancy, as well as the CT characteristics such as density, shape and margins. The frequency of pheochromocytoma was 10% among operated patients. The occurrence of incidentally discovered adrenocortical carcinomas and pheochromocytomas is not rare. Evaluation of the mass size and CT characteristics are simple and effective methods to differentiate malignant lesions. Biochemical screening for pheochromocytoma is mandatory before surgery. 4
15. Kedra A, Dohan A, Gaujoux S, et al. Preoperative Detection of Liver Involvement by Right-Sided Adrenocortical Carcinoma Using CT and MRI. Cancers. 13(7): 1603 2021 Mar 31. Observational-Dx 29 patients The major prognosis factor of adrenocortical carcinoma (ACC) is the completeness of surgery. The aim of our study was to identify preoperative imaging features associated with direct liver involvement (DLI) by right-sided ACC. Twenty-nine patients were included. Seven patients had DLI requiring en bloc resection. At multivariable analysis, focal ACC bulge was the single independent sign associated with DLI on CT (OR: 60.00; 95% CI: 4.60-782.40; p < 0.001), and ACC contour disruption was the single independent sign associated with DLI on MRI (OR: 126.00; 95% CI: 6.82-2328.21; p < 0.001). Both signs were highly reproducible, with respective kappa values of 0.85 and 0.91. The areas under ROC curves of MRI and CT models were not different (p = 0.838). Focal ACC bulge on CT and ACC contour disruption on MRI are independent and highly reproducible signs, strongly associated with DLI by right-sided ACC on preoperative imaging. MRI does not improve the preoperative assessment of DLI by comparison with CT. 2
16. Ranathunga DS, Cherpak LA, Schieda N, Flood TA, McInnes MDF. Macroscopic Fat in Adrenocortical Carcinoma: A Systematic Review. AJR Am J Roentgenol. 214(2):390-394, 2020 02. Review/Other-Dx 3 case reports To determine the number and quality of reports of adrenocortical carcinoma (ACC) containing macroscopic fat; this information may inform guidelines for diagnosis and management of ACC. Three case reports and one retrospective study comprising a total of seven cases of ACC (lesion size: range, 6.5-22 cm) with macroscopic fat were included. ACC was symptomatic in all patients; neither locally invasive features nor metastases were reported. Four cases had less than 5% macroscopic fat on imaging, and the percentage fat on imaging was not reported for the remaining three cases. With regard to the risk of bias, one case had high risk for the index test domain because of potentially unreliable determination of macroscopic fat (i.e., no pathologic confirmation). All seven cases (from four studies) had unclear risk for the reference standard domain because there was insufficient information about the reference standard to determine whether ACC was correctly diagnosed. All studies were at low risk of bias in the flow and timing domain. 4
17. Libe R, Haissaguerre M, Renaudin K, et al. [Guidelines of the French National ENDOCAN-COMETE, Association of Endocrine Surgery, Society of Urology for the management of adrenocortical carcinoma]. [French]. Bulletin du Cancer. 110(6):707-730, 2023 Jun. Review/Other-Dx NA This document updates the guidelines for the management of ACC in adults based on the most robust data in the literature. No results stated in abstract. 4
18. Krishnaraju VS, Kumar R, Subramanian K, et al. Fluoro-2-Deoxyglucose-Positron Emission Tomography/Computed Tomography in the Diagnosis and Management of Adrenocortical Carcinoma: A 10-Year Experience from a Tertiary Care Institute. Indian Journal of Nuclear Medicine. 37(3):227-235, 2022 Jul-Sep. Observational-Dx 77 patients The present study was aimed to compare the performance of fluoro-2-deoxyglucose-positron emission tomography-computed tomography (FDG-PET-CT) compared to contrast-enhanced computed tomography (CECT) in diagnosis and management of ACC. The study included 96 scans performed in 77 patients (36 males, aged 40.4 ± 17.9 years). Of these, 55 scans were performed to diagnose and stage suspected ACC (30 of them diagnosed as ACC), 31 for restaging, and 10 scans for surveillance of ACC. PET/CT revealed metastases from an extra-adrenal primary in 5/55 patients. FDG-PET-CT had a sensitivity and specificity of 100% and 70% to diagnose ACC. Standardized uptake value-peak more than 5.4 had a sensitivity of 90.9% and specificity of 91.7% for differentiating ACC from non-ACC lesions, while tumor-to-liver ratio peak (TLRpeak) of 3.3 was most specific. PET-CT changed the staging in 23.3% of the patients with an accuracy of 100%. PET-CT changed the management plan in 25.8% of the patients during restaging with a sensitivity and specificity of 95.6% and 100%, respectively. For surveillance, CECT was as sensitive as PET-CT; however, PET-CT was more specific (100% vs. 97.9%). 2
19. Takeuchi S, Balachandran A, Habra MA, et al. Impact of (1)(8)F-FDG PET/CT on the management of adrenocortical carcinoma: analysis of 106 patients. Eur J Nucl Med Mol Imaging 2014;41:2066-73. Observational-Dx 106 patients To evaluated the impact of PET/CT on the management of ACC. Included in the analysis were 106 patients with 180 PET/CT scans. Of the 106 patients, 7 underwent PET/CT only for initial staging, 84 underwent PET/CT only for restaging, and 15 underwent PET/CT for both initial staging and restaging. PET/CT changed the management plan in 1 of 22 patients (5%) at initial staging and 9 of 99 patients (9%) at restaging. In 5 of the patients in whom PET/CT changed the management plan, PET/CT showed response to chemotherapy but contrast-enhanced CT showed stable disease. Sensitivity, specificity, and accuracy were 100%, 100%, and 100% for PET/CT at initial staging; 92.6%, 100%, and 96.4% for CT at initial staging; 98.4%, 100%, and 99.5% for PET/CT at restaging; and 96.8%, 98.6%, and 98.0% for CT at restaging, respectively. No PET/CT parameters were associated with survival at either initial diagnosis or recurrence. 4
20. Leboulleux S, Dromain C, Bonniaud G, et al. Diagnostic and prognostic value of 18-fluorodeoxyglucose positron emission tomography in adrenocortical carcinoma: a prospective comparison with computed tomography. J Clin Endocrinol Metab 2006;91:920-5. Review/Other-Dx 22 patients To evaluate the diagnostic and prognostic values of fluorodeoxyglucose (FDG) using a combined positron emission tomography and computed tomography (PET/CT) modality, compared with thoracoabdominopelvic computed tomography (TAP-CT). A total of 269 lesions in 57 organs were depicted in 22 patients. The sensitivities for the detection of distinct lesions and the diagnosis of metastatic organs were 90 and 93% for PET/CT and 88 and 82% for TAP-CT, respectively. Twelve percent of the lesions were seen on PET/CT only and 10% on TAP-CT only. Eighteen percent of the metastatic organs were diagnosed with PET/CT only and 7% with TAP-CT only. Thirty-eight percent of the local relapses were seen only with PET/CT. PET/CT depicted three false-positive lesions. Treatment modalities were modified by PET/CT findings in five cases among which one was falsely positive. Tumor size and mitotic rate were significantly associated with FDG uptake. The intensity of FDG uptake (maximum standardized uptake value > 10) and the volume of FDG uptake (>150 ml) were significant prognostic factors for survival. 4
21. Jha A, Patel M, Carrasquillo JA, et al. Sporadic Primary Pheochromocytoma: A Prospective Intraindividual Comparison of Six Imaging Tests (CT, MRI, and PET/CT Using 68Ga-DOTATATE, FDG, 18F-FDOPA, and 18F-FDA). AJR. American Journal of Roentgenology. 218(2):342-350, 2022 02. Observational-Dx 14 patients To perform an intraindividual comparison of 68Ga-DOTATATE PET/CT, FDG PET/CT, 18F-FDOPA PET/CT, 18F-FDA PET/CT, CT, and MRI in visualization of sporadic primary PHEO. The analysis included 14 patients (eight women, six men; mean age, 52.4 ± 16.8 [SD] years) with PHEO. Both 68Ga-DOTATATE PET/CT and FDG PET/CT were completed in all 14 patients, 18F-FDOPA PET/CT in 11, 18F-FDA PET/CT in 7, CT in 12, and MRI in 12. Mean conspicuity score for PHEO was 5.0 ± 0.0 for 18F-FDOPA PET/CT, 4.7 ± 0.5 for MRI, 4.6 ± 0.8 for 18F-FDA PET/CT, 4.4 ± 1.0 for 68Ga-DOTATATE PET/CT, 4.3 ± 1.0 for CT, and 4.1 ± 1.5 for FDG PET/CT. The positivity rate for PHEO was 100.0% (11/11) for 18F-FDOPA PET/CT, 100.0% (12/12) for MRI, 85.7% (6/7) for 18F-FDA PET/CT, 78.6% (11/14) for FDG PET/CT, 78.6% (11/14) for 68Ga-DOTATATE PET/CT, and 66.7% (8/12) for CT. Lesion-to-liver SUVmax was 10.5 for 18F-FDOPA versus 3.0-4.2 for the other tracers. Interreader agreement across modalities ranged from 85.7% to 100.0% for lesion positivity with ICCs of 0.55-1.00 for SUVmax measurements. 3
22. van Berkel A, Pacak K, Lenders JW. Should every patient diagnosed with a phaeochromocytoma have a (1)(2)(3) I-MIBG scintigraphy? Clin Endocrinol (Oxf) 2014;81:329-33. Review/Other-Dx N/A To see if patients patients diagnosed with a phaeochromocytoma have a (1)(2)(3) I-MIBG scintigraphy. No results stated in abstract. 4
23. Archier A, Varoquaux A, Garrigue P, et al. Prospective comparison of (68)Ga-DOTATATE and (18)F-FDOPA PET/CT in patients with various pheochromocytomas and paragangliomas with emphasis on sporadic cases. Eur J Nucl Med Mol Imaging. 43(7):1248-57, 2016 Jul. Observational-Dx 30 patients To compare (68)Ga-labeled somatostatin analogs ((68)Ga-DOTA-SSA) positron emission tomography (PET)/computed tomography (CT), (18)F-FDOPA PET/CT, and conventional imaging in patients with various Pheochromocytomas/paragangliomas (PHEOs/ PGLs) with a special emphasis on sporadic cases, including those located in the adrenal gland. The patient-based sensitivities were 93 % (28/30), 97 % (29/30), and 93 % (28/30) for (68)Ga-DOTATATE PET/CT, (18)F-FDOPA PET/CT, and conventional imaging, respectively. The lesion-based sensitivities were 93 % (43/46), 89 % (41/46), and 76 % (35/46) for (68)Ga-DOTATATE PET/CT, (18)F-FDOPA PET/CT, and conventional imaging respectively (p = 0.042). (68)Ga-DOTATATE PET/CT detected a higher number of HNPGLs (30/30) than (18)F-FDOPA PET/CT (26/30; p = 0.112) and conventional imaging (24/30; p = 0.024). (68)Ga-DOTATATE PET/CT missed two PHEOs of a few millimeters in size and a large recurrent PHEO. One lesion was considered false-positive on (68)Ga-DOTATATE PET/CT and corresponded to a typical focal lesion of fibrous dysplasia on magnetic resonance imaging (MRI). Among the 11 lesions missed by conventional imaging, 7 were detected by conventional imaging with knowledge of the PET results (4 HNPGLs, 2 LNs, and 1 recurrent PHEO). 2
24. Xu S, Pan Y, Zhou J, Ju H, Zhang Y. Integrated PET/MRI With 68Ga-DOTATATE and 18F-FDG in Pheochromocytomas and Paragangliomas: An Initial Study. Clin Nucl Med. 47(4):299-304, 2022 Apr 01. Review/Other-Dx 11 patients To investigate whether diffusion-weighted imaging-MRI (DWI-MRI) has an added value to PET imaging in the identification of PPGL lesions by means of integrated PET/MRI. 68Ga-DOTATATE PET was superior to 18F-FDG PET and DWI-MRI in imaging PPGLs with a lesion-based detection rate of 96.4% (54/56) (95% confidence interval [CI], 87.7%-99.6%), 85.7% (48/56) (95% CI, 76.3%-95.2%), and 89.3% (50/56) (95% CI, 80.9%-97.6%), respectively. PET/MRI with DWI could improve the detection rate of 68Ga-DOTATATE and 18F-FDG PET alone up to 100% in metastatic PPGLs. Lesions of PPGL demonstrated markedly higher tracer uptake in 68Ga-DOTATATE PET than in 18F-FDG PET (P = 0.009 for primary lesion, P = 0.033 for metastases). 4
25. Cantalamessa A, Caobelli F, Paghera B, Caobelli A, Vavassori F. Role of (18)F-FDG PET/CT, (123)I-MIBG SPECT, and CT in Restaging Patients Affected by Malignant Pheochromocytoma. Nucl Med Mol Imaging 2011;45:125-31. Observational-Dx 38 patients The aim of our study was to determine the feasibility of using 18F-FDG PET/CT as a single restaging study in patients affected by previously histologically confirmed PH, comparing this technique with CT alone and 123I-MIBG SPECT. (18)F-FDG PET/CT showed positive results for neoplastic tissue in 33/38 patients (86.8%) and negative in 5/38 (13.2%), in concordance with CT alone. (123)I-MIBG SPECT was positive in 30/38 patients (78,9%) and negative in 8/38 (21.1%). No differences in lesion numbers were found between (18)F-FDG PET/CT and CT, whereas a difference could be demonstrated between (18)F-FDG PET/CT and (123)I-MIBG SPECT. 3
26. Measuring Sex, Gender Identity, and Sexual Orientation. Review/Other-Dx N/A Sex and gender are often conflated under the assumptions that they are mutually determined and do not differ from each other; however, the growing visibility of transgender and intersex populations, as well as efforts to improve the measurement of sex and gender across many scientific fields, has demonstrated the need to reconsider how sex, gender, and the relationship between them are conceptualized. No abstract available. 4
27. American College of Radiology. ACR Appropriateness Criteria® Radiation Dose Assessment Introduction. Available at: https://edge.sitecorecloud.io/americancoldf5f-acrorgf92a-productioncb02-3650/media/ACR/Files/Clinical/Appropriateness-Criteria/ACR-Appropriateness-Criteria-Radiation-Dose-Assessment-Introduction.pdf. Review/Other-Dx N/A To provide evidence-based guidelines on exposure of patients to ionizing radiation. No abstract available. 4
No of Rows: 27
Definitions of Study Quality Categories
The study is well-designed and accounts for common biases. The source has all 8 diagnostic study quality elements present. The source has 5 or 6 therapeutic study quality elements
The study is moderately well-designed and accounts for most common biases. The source has 6 or 7 diagnostic study quality elements The source has 3 or 4 therapeutic study quality elements
There are important study design limitations. The source has 3, 4, or 5 diagnostic study quality elements The source has 1 or 2 therapeutic study quality elements
The study is not useful as primary evidence. The article may not be a clinical study or the study design is invalid, or conclusions are based on expert consensus. For example:
  1. The study does not meet the criteria for or is not a hypothesis-based clinical study (e.g., a book chapter or case report or case series description);
  2. The study may synthesize and draw conclusions about several studies such as a literature review article or book chapter but is not primary evidence;
  3. The study is an expert opinion or consensus document.
The source has 0, 1, or 2 diagnostic study quality elements present. The source has zero (0) therapeutic study quality elements.
  • Good quality – the study design, methods, analysis, and results are valid and the conclusion is supported.
  • Inadequate quality – the study design, analysis, and results lack the methodological rigor to be considered a good meta-analysis study.
n/a n/a
© 2026. American College of Radiology.
  • Need help? Please Contact us with any questions or concerns.