Zubair Janan, Misbah Durrani, Mehmood Akhtar.
Accuracy of Diffusion-weighted MRI in Localization of Undescended Testes.
Ophthalmol Update Jan ;12(2):156-8.

Objective: To determine the role of DW MRI in localization of undescended testes. Study Design: Cross sectional study. Place and duration of study: Radiology department, Mardan Medical Complex Mardan, from September 2013 to February 2014. Methodology: Eighteen boys with undescended testes underwent preoperative abdominal and pelvic MRI to identify the location of the testes. MRI included free-breathing diffusion-weighted imaging (DWI), a T1-weighted turbo spin-echo sequence, and a T2-weighted fat-suppressed turbo spin-echo sequence. Post operative findings were reviewed. Sensitivity and accuracy in the identification of nonpalpable undescended testes were calculated for conventional MRI alone and in combination with DWI. Results: Study included 18 patients, using conventional MRI only 15 testis were correctly identified and located whereas when DWI was added 17 testes were correctly located. Conclusion: Use of DWI with a high b value yields information that complements conventional MRI findings, improving identification and location of nonpalpable undescended testes.

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