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目的探讨前列腺解剖带区的ＭＲＩ表现，指导影像诊断。材料与方法８具男尸及９１例受试者，在标本和图像上确认各带区，并测量其大小。结果Ｔ２ＷＩ可显示前列腺轮廓。Ｔ２ＷＩ周缘区呈高信号，中央腺区呈低信号。随年龄增长前列腺增大，以中央腺区增大更明显，周缘区厚度先增加后变小。远段尿道与地平面的角度约为８９．７２±１．６０度，近段尿道前倾。结论Ｔ２ＷＩ可分辨带区。识别周缘区以磁共振信号为准。尿道、精阜、射精管可作为参照物。不同带区的好发病变不同。随年龄增长中央腺区增大更明显，且周缘区变薄。ＭＲＩ的轴位像与ＭｃＮｅａｌ设计的不完全一致，冠状位一致。
Objective To investigate the MRI findings of prostate dissection zone and guide the imaging diagnosis. MATERIALS AND METHODS Eight male corpuscles and 91 subjects were enrolled in this study. Each strip was identified on specimens and images and its size was measured. Results T2WI can show prostate contour. T2WI peripheral zone was high signal, central gland area was low signal. Prostate increases with age, the central gland area increased more pronounced, the thickness of the peripheral zone first increased after the smaller. The distal urethra and ground level angle is about 89.72 ± 1.60 degrees, the proximal urethra forward. Conclusions T2WI distinguishable band. Identification of peripheral magnetic resonance signal shall prevail. Urethra, fine Fu, ejaculatory tube can be used as a reference. Different zones of good incidence of different lesions. With age, the central gland area increased more obviously, and the peripheral area became thinner. MRI axial images and McNeal design is not exactly the same, coronal.