Ishtiaq Ahmed Qureshi, Hidayat Ullah, Hamid Akram, Shazia Ashfaq, Shaista Nayyar.
Transvaginal versus Transabdominal Sonography in the evaluation of pelvic pathology.
J Coll Physicians Surg Pak Jan ;14(7):390-3.

Objective: To find the accuracy of sonographic information provided by transvaginal sonography (TVS) in pelvic pathology as compared to transabdominal sonography (TAS). Design: A comparative study. Place and Duration of Study: The study was carried out in Military Hospital (MH) and Combined Military Hospital (CMH) Rawalpindi from January 2002 to June 2002. Materials and Methods: Hundred patients were included in the study from a total of 212 referred for pelvic sonography. Two radiologists independently performed transabdominal and transvaginal sonography of these patients. An independent observer compared the findings. TVS was graded as superior, equal or inferior to TAS depending on the score assigned by them. Results: TVS was considered superior in 63%, equal in 27% and inferior in 10% of the cases as compared to transabdominal sonography. It was graded inferior to TAS in cases with large pelvic masses and superior in majority of cases of ovarian follicle monitoring, polycystic ovaries, endometrial carcinoma and suspected ectopic pregnancy. Cases in which both techniques were considered equal included patients with no abnormal finding, some pelvic masses and advanced pelvic inflammatory disease. Conclusion: Transvagival sonography is superior to transabdominal sonography in most cases of pelvic pathology. However, TAS should still be the initial sonographic technique for routine evaluation of the female pelvis followed by TVS if indicated. In cases of ovarian follicle monitoring, suspected polycystic ovaries, endometrial pathology and suspected ectopic pregnancy, TVS may be used as the initial sonographic technique and can even replace TAS.

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