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CT和MRI对永存原始玻璃体增生症的诊断及鉴别诊断 被引量:5

Diagnosis and differential diagnosis of CT and MRI for persistent hyperplastic primary vitreous
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摘要 目的:探讨CT和MRI对永存原始玻璃体增生症(PHPV)诊断价值,为PHPV提供有效的检查方法和影像学诊断依据。方法:收集行MRI和CT检查并经术后病理确诊的42例白瞳症患者(其中PHPV32例,视网膜母细胞瘤10例),综合分析MRI和CT表现,对MRI和CT诊断结果与病理结果进行对比,计算两种方法对PHPV诊断的阳性率。结果:MRI对PHPV诊断的阳性率为77.8%,CT诊断的阳性率为42.9%,两者比较差异有显著性(P<0.05)。PHPV在MRI上的特征性影像表现为小眼球、玻璃体内沿Cloquet管走形的异常信号,呈漏斗状、蘑菇状、高脚杯形或雏形,T1WI和T2WI呈中等信号,增强扫描异常信号呈明显强化。PHPV在CT上的特征影像表现为小眼球,玻璃体内见有不同形状的软组织密度影位于眼球后极与晶状体之间,增强扫描强化明显。结论:MRI对PHPV的诊断有重要意义,由于其高诊断率和多方位成像可清晰显示球内病变组织,成为永存原始玻璃体增生症的首选检查方法。
出处 《吉林大学学报(医学版)》 CAS CSCD 北大核心 2010年第6期1161-1163,共3页 Journal of Jilin University:Medicine Edition
基金 吉林省科技厅科研基金资助课题(20090725)
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