Abstract
To assess the use of functional magnetic resonance imaging (MRI), including diffusion-weighted MRI (DWI) and magnetization transfer MRI (MTI) in evaluating male infertility. Sixteen men with testicular spermatogenesis hypofunction confirmed by percutaneous testis biopsy and 31 volunteers (control group B, age range: 20-40 years) with normal semen analysis including younger (By, n = 15, age range: 20-30 years) and older (Bo, n = 16, age range: 31-40 years) men underwent pelvic 3T MRI, including DWI and MTI. Apparent diffusion coefficient (ADC) and magnetization transfer ratio (MTR) were compared. The ADCs in 32 testes of 16 patients (0.497 ± 0.037 × 10-3 mm2 /s) were significantly (P < 0.001) higher than that of control group B (0.460 ± 0.031 × 10-3 mm2 /s), group By (0.453 ± 0.018 × 10-3 mm2 /s), and group Bo (0.461 ± 0.034 × 10-3 mm2 /s), whereas the MTRs were significantly lower than that of group B (16.14 ± 4.20), group By (17.88 ± 2.00), and group Bo (15.09 ± 4.28) (P < 0.001). Functional MRI, including DWI and MTI, appears promising for evaluating male infertility with higher ADC and lower MTR in testicular spermatogenesis hypofunction. 2 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2018;47:186-190.
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