LAVA多期动态增强扫描在前列腺癌诊断中的价值  

Liver Acquisition with Volume Acceleration MRI in the Evaluation of Prostate Carcinoma

作　　者：张玉琴[1] 王毅力[1] 董海波[1] 

机构地区：[1]宁波市医疗中心李惠利医院放射科,浙江315041

出　　处：《放射学实践》2009年第3期283-286,共4页Radiologic Practice

摘　　要：目的:探讨常规MRI及肝脏容积超快速三维成像(LAVA)序列多期动态增强扫描对前列腺癌的诊断价值,提高对前列腺癌的诊断准确性。方法:回顾性分析经穿刺活检和手术病理证实的60例前列腺占位的MRI表现,其中59例为前列腺癌,1例为前列腺增生。将所有病例分为2组:LAVA组30例,采用常规MRI平扫结合LAVA多期动态增强扫描;对照组30例,采用常规MRI平扫和增强扫描。结果:LAVA组30例患者中,术前诊断为前列腺癌27例(诊断符合率为90%),不确定诊断2例,前列腺增生1例。对照组30例中MRI诊断前列腺癌20例(符合率为69%),不确定诊断4例,前列腺增生5例,1例前列腺增生误诊为前列腺癌并且漏诊了膀胱癌。LAVA组和对照组诊断符合率的差异有显著性意义(P<0.05)。结论:LAVA多期动态增强扫描对前列腺癌具有重要诊断价值。Objective：To compare the value of routine MRI and liver acquisition with volume acceleration （LAVA） MRI in the diagnosis of prostate carcinoma in order to improve the diagnostic accuracy. Methods： The MRI findings of 60 patients with prostate lesions proved by aspiration biopsy or surgery were retrospectively analyzed, with 59 patients had prostate carcinoma and I patient had benign prostate hyperplasia （BPH）. The 60 patients were divided into two groups with 30 patients had routine plain MRI in combination with LAVA multi-phase dynamic contrast enhanced scanning, the other 30 patients as control group underwent routine MRI without and with contrast administration. Results： Of the LAVA group, 27 patients were diagnosed as prostate carcinoma before surgery with the accuracy as 90.00 % ; 2 patients were indeterminate and 1 patient was BPH. Of the control group, 20 patients were diagnosed as prostate carcinoma with the accuracy as 68. 97 % ;4 patients were indeterminate and 5 patients were BPH. 1 patient had BPH and was misdiagnosed as prostate carcinoma,also the coexisted bladder cancer was missed. Signifieant statistical difference of the accuracy was existed between the LAVA group and control group （P〈0.05）. Conclusion： LAVA multiphase dynamic enhanced MRI showed significant value in the diagnosis of prostate carcinoma.

关 键 词：前列腺肿瘤 磁共振成像 动态增强扫描 

分 类 号：R737.25[医药卫生—肿瘤]