CT增强扫描对眶内海绵状血管瘤定性、定位诊断的准确性观察

目的探讨CT增强扫描对眶内海绵状血管瘤的诊断价值。方法以我院2010年1月-2015年12月经手术病理证实的60例眶内海绵状血管瘤患者为研究对象,术前行CT常规平扫及增强扫描,其中常规增强扫描(计为常规组)、动态增强扫描(计为增强组)各30例,观察各自征象,并与手术病理结果对照,比较不同扫描方式诊断准确率。结果 CT平扫显示肌锥内肿瘤55例(91.7%);类圆状形态30例(50.0%);肿瘤边界清楚;大多密度均匀、中等偏高。常规组显示明显强化13例,无明显强化17例;增强组显示明显强化26例,呈现不均匀渐进性强化特点,无明显强化4例。增强组对眶内海绵状血管瘤确诊率86.7%,显著高于对照组的43.3%(P0.001)。结论 CT动态增强扫描对眶内海绵状血管瘤定性、定位诊断准确率相比CT常规增强扫描有明显优势。临床建议行CT动态增强扫描以提高眶内海绵状血管瘤诊断准确性。

Observation on the Accuracy of CT Enhanced Scan in Qualitative and Localization Diagnosis of Orbital Cavernous Hemangioma

Objective To evaluate the diagnostic value of CT enhanced scan in the diagnosis of orbital cavernous hemangioma.Methods 60 cases of patients with orbital cavernous hemangioma which confirmed by surgery and pathology in our hospital between January 2010 and December 2015 were selected as the study objects. CT routine plain scan and enhanced scan were performed before operation, including routine enhanced scan (routine group) and dynamic enhanced scan (enhanced group), 30 cases in each group. The respective signs were observed and compared with surgical and pathological results. The diagnostic accuracy rates of different scanning methods were compared.Results CT plain scan showed 55 cases (91.7%) located in muscle cone, 30 cases (50%) with quasi-circular shape and clear tumor boundaries; most of the density was homogeneous and moderately high. The routine group showed obvious enhancement in 13 cases and no obvious enhancement in 17 cases; The enhanced group showed obvious enhancement in 26 cases, showing characteristic of inhomogeneous progressive enhancement and no obvious enhancement in 4 cases. The confirmed diagnosis rate of orbital cavernous hemangioma in the enhanced group (86.7%) was significantly higher than that in the control group (43.3%) (P<0.001).Conclusion Compared ith CT routine enhanced scan, the accuracy of CT dynamic enhanced scan in qualitative and localization diagnosis of orbital cavernous hemangioma was obvious higher. It is suggested that CT dynamic enhanced scan could improve the accuracy rate in diagnosis of orbital cavernous hemangioma.