Diagnostic performance of GI-RADS reporting system in evaluation of adnexal masses

Background Transvaginal and pelvic ultrasound are considered the primary imaging modality in evaluating adnexal masses. Gynaecologic Imaging Reporting and Data System (GI-RADS) depends on different ultrasound patterns and criteria adopted by the International Ovarian Tumour Analysis (IOTA) group. Th...

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Bibliographic Details
Published in:Egyptian journal of radiology and nuclear medicine 2020-04, Vol.51 (1), p.60-10
Main Authors: Abd elsalam, Sahar Mahmoud, Hamed, Soha Talaat, Sayed, Mohamed Abd elghafar
Format: Article
Language:English
Subjects:
Adnexal masses
Ascites
Benign
Classification
Cysts
GI-RADS
Gynecology
Malignant ovarian masses
Morphology
Ovarian cancer
Patients
Sensitivity
Software
Ultrasonic imaging
Womens health
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Summary:Background Transvaginal and pelvic ultrasound are considered the primary imaging modality in evaluating adnexal masses. Gynaecologic Imaging Reporting and Data System (GI-RADS) depends on different ultrasound patterns and criteria adopted by the International Ovarian Tumour Analysis (IOTA) group. The current study aimed to detect the diagnostic accuracy of the GI-RADS classification in evaluating adnexal masses. In this prospective cross-sectional study, a total of 112 adnexal masses belonging to 100 women, age ranged 12 to 66 years old, were included. The study population was recruited throughout the period between January and November 2017. Ultrasound examination was performed to all patients; different US and Doppler criteria were assessed. Results Out of the 112 lesions, 36 (32.1%) were GI-RADS 2, 32 (28.6%) GI-RADS 3, 13 (11.6%) GI-RADS 4, and 31 (27.7%) GI-RADS 5. The GI-RADS classification showed sensitivity 97%, specificity 84.8%, positive predictive value (PPV) 72.7%, negative predictive value (NPV) 98.5%, and accuracy 88.4%. Conclusion The GI-RADS reporting system carried a high sensitivity in identifying adnexal masses at high risk of malignancy. The increased number of benign lesions misclassified as GI-RADS 4 required additional markers to improve the specificity in GI-RADS classification.
ISSN:0378-603X
2090-4762
DOI:10.1186/s43055-020-00155-9