ĐẶC ĐIỂM HÌNH ẢNH CỘNG HƯỞNG TỪ 3.0 TESLA TRONG UNG THƯ TUYẾN TIỀN LIỆT

Abstract

Objective: To study the imaging features of 3.0-T MRI in prostate cancer (PCa). Methods: 25 patients (Pts) underwent prostate 3.0-T MRI from 03/2023 to 10/2023, with post-biopsy/surgical pathology confirming PCa. Results: The mean age of Pts was 72.6 ± 6.6 (range 59 to 82 years). The total number of detected lesions on 3.0-T MRI was 89. On T2-weighted imaging (T2W), all 44 (100%) lesions in the transition zone and 42 (93.3%) lesions in the peripheral zone showed hypointensity (p = 0.3), however, 64 (72%) lesions were homogenous, and 23% were heterogeneous (p < 0.05). On diffusion-weighted imaging (DWI), the restricted diffusion in the peripheral and transition zones indicated PCa in 38 (84.4%) and 37 (84.1%) lesions, respectively (p = 1). After dynamic contrast-enhanced (DCE) imaging, the early enhancement rate in the peripheral zone was 42.2% lesions, higher than in the transition zone at 15.9% (p < 0.05). Invasion signs included capsule interruption in 14 Pts (56%), bladder wall invasion in 12 Pts (48%), seminal vesicle invasion in 18 Pts (72%). Pelvis node extension was observed in 13 Pts (52%), and bone in 3 Pts (12%). The distribution according to Prostate Imaging-Reporting and Data System (PI-RADS) v.2.0 scores were PIRADs I and II (0%), PIRADs III in 4 Pts (16%), PIRADs IV in 9 Pts (36%), and PIRADs V in 12 Pts (48%). Conclusion: The imaging features on 3.0-T MRI are reliable in diagnosing prostate cancer.