Added Value of Ovarian-Adnexal Reporting and Data System in Evaluation of Ovarian Lesions

Ultrasound (US) continues to be the initial imaging modality of choice for the identification and characterization of adnexal masses (AM) . Structured reporting of AM findings was identified by a Society of Radiologists in Ultrasound consensus working group as a target for the investigation to improve the management of women with AM .

Many established guidelines and structured reporting have been developed using sonography to characterize AM, including subjective assessment, simple scoring systems, and statistically derived scoring systems .

In 2008, the International Ovarian Tumor Analysis (IOTA) group proposed the use of US simple rules for the diagnosis of ovarian malignancy. These are based on a set of five US features indicative for a benign tumor (B features), and five US features indicative for a malignant tumor (M features)

. In 2009, the Gynecology Imaging Reporting and Data System (GI-RADS) was designed as an attempt allowing standardized reporting of AM. This system is based on recognition patterns and criteria provided by the IOTA.

The American College of Radiology (ACR) published the Ovarian-Adnexal Reporting and Data System (O-RADS), which provides an up-to-date suggestion to stratify the AM according to sonographic features. The O-RADS offers a comprehensive algorithm that categorizes AM by their possibility of being normal (O-RADS 1), to high risk of malignancy (O-RADS 5) .