Zahra Asgari - Department of Obstetrics and Gynecology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Reyhaneh Hosseini - Department of Obstetrics and Gynecology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Mahdi Sepidarkish - Infertility and Reproductive Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.
Azar Nabati - Department of Obstetrics and Gynecology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.

Background: Early diagnosis and appropriate treatment of endometriosis are vital and may prevent subsequent complications. Objective: To investigate the diagnostic accuracy of transvaginal ultrasound sonography (TVUS) and transrectal ultrasound sonography for detecting endometriosis considering the age and body mass index (BMI). Materials and Methods: This was a retrospective cohort study of ۱۱۹ women scheduled for surgery in a tertiary health care center for clinically suspected endometriosis. Married and virgin women underwent TVUS and transrectal ultrasound sonography, respectively, before laparoscopic excision of endometriotic lesions. Results: The accuracy of TVUS in the diagnosis of right endometrioma in women with a normal BMI was superior to that in women with a BMI ≥ ۳۰ (۹۵.۶% vs. ۷۵.۳%; p < ۰.۰۰۱). For the detection of left endometrioma in women with a normal BMI, TVUS demonstrated a sensitivity of ۹۶.۹% and a negative predictive value of ۹۲.۹%, which was significantly superior to TVUS in women with obesity (sensitivity: ۷۷.۴%, negative predictive value: ۵۸.۶%). The accuracy of TVUS in the diagnosis of left endometrioma in women under ۳۵ yr was superior to that in women older than ۳۵ yr (۹۳.۲% vs. ۷۷.۹%; p = ۰.۰۴). Similarly, the accuracy of TVUS in the diagnosis of right endometrioma in women under ۳۵ yr was superior to TVUS in women older than ۳۵ yr (۸۶.۵% vs. ۷۳.۳%; p = ۰.۰۴). Conclusion: Ultrasound can be a useful technique for detecting endometriosis when used adjunctively with the patient’s history and physical findings, especially age and BMI.

Endometriosis, Ultrasonography, Diagnostic imaging, Body mass index., آندومتریوز, آندومتریوز عمیقا نفوذ کننده, سونوگرافی ترانس واژینال, سونوگرافی.