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DWI结合LAVA技术对膀胱癌的诊断价值 被引量:1

Diagnostic Value of DWI Combined with Lava to Bladder Cancer
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摘要 目的:探讨DWI及LAVA增强扫描对膀胱癌诊断及在术前分期中的应用价值。方法:搜集我院经手术病理证实的30例膀胱癌患者的常规MRI平扫、DWI及LAVA增强资料对其进行分析,总结出膀胱癌在DWI结合LAVA增强中的表现,判断其临床分期,并与术后病理分期结果进行比较。结果:膀胱三角区及膀胱后侧壁是膀胱癌最常见的好发部位,肿瘤平扫T1WI呈中等信号,T2WI呈中高信号,DWI呈明显高信号,其生长方式为:乳头状16例,广基底肿块型8例,沿膀胱壁浸润生长型6例。LAVA增强所有病例在动脉早期显著强化。MRI对病变检出敏感性为100%,DWI结合LAVA与临床病理分期符合率为93.3%(28/30),且均较病理分期偏高。结论:膀胱癌的DWI及LAVA增强表现具有特征性,在肿瘤术前诊断及分期尤其有明显优势。 Objective :To deal with the effective value of DWI and LAVA on diagnosis and preoperative staging of bladder cancer. Methods: Data of routine plain MRI, DWI and LAVA enhancement from 30 patients with bladder cancer confirmed by operation and pathology were collected and analyzed; the performances of bladder cancer in DWI combined with LAVA enhancement were reviewed for judgment of the clinical stage, and compared with post- operative pathologic results. Results: The most common predilection sites of bladder cancer were in trigone and posterior wall of bladder, and tumors exhibited isointensity on T1WI, medium -hyper intensity on T2WI and obvi- ous hyper - intensity on DWI. The growth patterns are as follow : 16 cases of papillary type, 8 cases of broad base mass type, 6 cases of infiltrating along the bladder wall type. All of the cases are significantly enhanced in the early arterial phase of LAVA enhancement. Detected sensitivity of lesions is 100% on MR! ; the according rate in DWI combined with LAVA and clinical staging of bladder cancer was 93.3 %, and diagnostic according rate of MRI stages are higher than that of pathological stages. Conclusions: DWI and LAVA performances are characteristic for bladder cancer and have obvious advantages in preoperative diagnosis and staging.
出处 《青海医药杂志》 2011年第10期1-4,共4页 Qinghai Medical Journal
关键词 膀胱癌 DWI LAVA 技术 Bladder cancer Diffusion Weighted Imaging (DWI) LAVA
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