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TITLE:

DIAGNOSTIC ACCURATENESS OF MAGNETIC RESONANCE IMAGING FOR CONFINING TESTES IN CRYPTORCHIDISM CASES

AUTHORS:

Dr Hafiz Muhammad Umair Ahmad, Dr Muhammad Aqib Riaz, Dr Hamza Zulfiqar

ABSTRACT:

Aim: To determine the diagnostic accuracy of MRI for the location of undescended testes in clinically detected cases of cryptorchidism, using the results of surgical examinations as the gold standard. Study design: A cross-sectional study Methods: It was a cross-sectional study held in the radiology department of Allied Hospital, Faisalabad for six-months duration from March 2020 to August 2020. Patients were recruited by purposive sampling. One hundred and seventy clinically and ultrasonically [7.5 MHz superficial linear probe with AU5 Harmonic EZAOTI] diagnosed cases of undetectable undescended testes at the age of 0-16 were selected from the Department of Diagnostic Radiology. Children with ambiguous genitals in the clinical trial and boys unfit for anesthesia or surgery were excluded from the study. MRI of all cases was performed using the 1.5 Tesla MR system. Results: Patients' age ranged from 0-16 years. The mean age of the patients was 5.1 ± 2.3 years. According to the affected side, there were 49 cases [28.8%] on the right side, 93 cases [54.7%] on the left side, and 28 cases [16.5%] on the both-sided. Comparing the MRI results with the surgical results showed that there were 127 true positives, 3 false positives, 27 false negatives, and 13 true negatives. Statistical analysis of the study showed a sensitivity of 82.4%, a specificity of 81.2%, a diagnostic accuracy of 82.3%, a positive predictive value of 97.6% and a negative predictive value of 32.5% MRI for the location of the undescended testes in clinically detected cases of cryptorchidism, considering surgical results to be the gold standard. Conclusion: It has been concluded that magnetic resonance imaging [MRI] offers a new promising imaging method for locating the undescended testis because it has better resolution, multiplanar ability, different sequences, and is safe and safe. Keywords: MRI imaging, testicular location, diagnostic accuracy.

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