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为探讨常规磁共振成像引导下穿刺活检的阳性率,确定可能影响穿刺活检阳性发现的因素及其诊断肿瘤的临床意义,Roethke等人对100例经直肠超声引导下穿刺活检(TRUS-GB)结果呈阴性、包块持续性长大和血浆前列腺特异性抗原(PSA)升高怀疑为前列腺癌的患者行磁共振成像引导下的穿刺活检,对患者的临床资料及活检结果进行回归分析,并以前列腺切除术后的病理学诊断结果作为金标准。其结果显示:100例患者中,先前的平均活检次数为2次(1～9次),活检时的平均PSA
To investigate the positive rate of conventional biopsy guided by conventional magnetic resonance imaging and identify the possible factors that may influence the positive findings of biopsy and its clinical significance in the diagnosis of tumors, Roethke et al. Evaluated the results of 100 transrectal ultrasound-guided biopsy (TRUS-GB) Negative, mass continued to grow and plasma prostate-specific antigen (PSA) increased Prostate cancer in patients suspected of undergoing magnetic resonance imaging guided biopsy, the clinical data and biopsy results of patients with regression analysis and prostate Pathological diagnosis after resection results as the gold standard. The results showed: 100 patients, the average number of previous biopsies was 2 times (1 to 9 times), the average PSA at the time of biopsy