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

Sahar Mahmoud Abd Elsalam,Soha Talaat Hamed,Mohamed Abd Elghafar Sayed

doi:10.1186/s43055-020-00155-9

Sahar Mahmoud Abd Elsalam, Soha Talaat Hamed + Show 1 more

Open Access

https://doi.org/10.1186/s43055-020-00155-9

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Abstract

BackgroundTransvaginal 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.ResultsOut 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%.ConclusionThe 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.

Highlights

Transvaginal and pelvic ultrasound are considered the primary imaging modality in evaluating adnexal masses
The sensitivity of Gynaecologic Imaging Reporting and Data System (GI-RADS) stood at 97%, specificity 84.8%, positive predictive value 68.1%, negative predictive value 98.5%, and accuracy 88.4% (Table 4)
Reporting of the precise diagnosis of adnexal masses is an important issue in clinical practice, as inaccurate diagnosis might lead to unnecessary examinations and surgeries, and appropriate diagnosis improves the communication between the medical team and leads to better outcome [19, 20]

Summary

Introduction

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. Ovarian cancer is considered the most lethal gynaecological cancer in women. It is responsible for an estimated 152,000 deaths, and 239,000 new cases are recorded worldwide [3]. Ovarian cancer presents at late stage when its 5-year survival rate is less than 30% [5]

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