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目的分析研究磁共振成像技术(MRI)在前列腺疾病诊断中的应用效果。方法 37例前列腺病变患者,病理证实前列腺良性增生(BPH)19例,前列腺癌(PC)18例,由2名放射科医师研究MRI影像学表现,观察病变位置、大小、形态以及信号情况,对比分析诊断结果与病理结果。结果 MRI诊断BPH的特异性以及敏感性分别为83.3%、84.2%;MRI诊断PC的特异性以及敏感性分别为84.2%、83.3%。BPH的MRI表现:外周带增生2例,显示可见低信号结节,边界清晰,可见有完整包膜;中央带增生为18例患者,显示有中央带明显增大,内信号不均匀,外周带受压有明显变薄。PC的MRI表现:中央带1例(5.6%),中央带与外周带分界不清晰2例(11.1%);位于外周带15例(83.3%)。周围波及:周围脏器5例(膀胱2例,直肠3例),侵及精囊腺7例,侵及包膜10例,骨转移4例,盆腔级两侧腹股沟淋巴结转移6例。结论临床在诊断前列腺良性增生以及前列腺癌疾病时,常规MRI方法具有良好的特异性以及敏感性,为之后的临床治疗提供可参考的依据。
Objective To analyze the application of magnetic resonance imaging (MRI) in the diagnosis of prostate diseases. Methods Totally 37 patients with benign prostatic hyperplasia (BPH) and 18 prostate cancer (PC) were confirmed by histopathology. MRI findings of 2 radiologists were studied. The location, size, shape and signal of the lesions were observed. Analyze the diagnosis and pathology results. Results The specificity and sensitivity of MRI in diagnosing BPH were 83.3% and 84.2%, respectively. The specificity and sensitivity of MRI in diagnosing PCH were 84.2% and 83.3%, respectively. The MRI findings of BPH: Peripheral band hyperplasia in 2 cases, showing low signal nodules, the boundary is clear, showing a complete envelope; central band hyperplasia in 18 patients, showed a marked increase in the central zone, the signal is not uniform, the peripheral zone Pressure is significantly thinner. The MRI findings of PC included 1 case (5.6%) in the central zone, 2 cases (11.1%) indistinct between the central zone and the peripheral zone, and 15 (83.3%) in the peripheral zone. Surrounding around: organ around 5 cases (2 cases of bladder, 3 cases of rectum), invaded and seminal vesicle in 7 cases, invasion and envelope in 10 cases, bone metastasis in 4 cases, pelvic grade on both sides of the inguinal lymph node metastasis in 6 cases. Conclusion In the diagnosis of benign prostatic hyperplasia and prostate cancer, the conventional MRI method has good specificity and sensitivity, which can provide reference for the clinical treatment afterwards.