Pattern Recognition or Adnexal MR Scoring System: Which Is More Accurate in Evaluating Adnexal Lesions?

Malek, Mehrooz; Hosseini, Ashrafsadat; Moradi, Behnaz; Rahmani, Maryam; Aghasi, Maryam; Akhavan, Setareh; Ahmadinejad, Nasrin; Abdolghafoorian, Hamed

doi:10.31557/APJCP.2024.25.4.1265

Pattern Recognition or Adnexal MR Scoring System: Which Is More Accurate in Evaluating Adnexal Lesions?

Document Type : Research Articles

Authors

¹ Department of Radiology, Advanced Diagnostic and Interventional Radiology Research Center, Tehran University of Medical Science, Tehran, Iran.

² Department of Gynecology, Oncology, Vail-e-Asr Hospital, Imam Khomeini Hospital, Tehran, Iran.

³ Shahid Beheshti University of Medical Science, Tehran, Iran.

10.31557/APJCP.2024.25.4.1265

Abstract

Purpose: This study aims to compare the accuracy of the ADNEX MR scoring system and pattern recognition system to evaluate adnexal lesions indeterminate on the US exam. Methods: In this cross-sectional retrospective study, pelvic DCE-MRI of 245 patients with 340 adnexal masses was studied based on the ADNEX MR scoring system and pattern recognition system. Results: ADNEX MR scoring system with a sensitivity of 96.6% and specificity of 91% has an accuracy of 92.9%. The pattern recognition system’s sensitivity, specificity, and accuracy are 95.8%, 93.3%, and 94.7%, respectively. PPV and NPV for the ADNEX MR scoring system were 85.1 and 98.1, respectively. PPV and NPV for the pattern recognition system were 89.7% and 97.7%, respectively. The area under the ROC curve for the ADNEX MR scoring system and pattern recognition system is 0.938 (95% CI, 0.909-0.967) and 0.950 (95% CI, 0.922-0.977). Pairwise comparison of these AUCs showed no significant difference (p = 0.052). Conclusion: The pattern recognition system is less sensitive than the ADNEX MR scoring system, yet more specific.

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