CT诊断硬膜下血肿的临床价值

摘要

Objective:To investigate the clinical value of CT in diagnosis of subdural hematoma.Method:50 cases of subdural hematoma used the U.S. GE whole body CT Scanner,matrix was 256×256,thickness was 1.0 cm,scan time was 4.8 seconds.50 cases in 18 cases was took simultaneously enhanced scan, 60%contrast agent Diatrizoate,per kilogram of body weight immediately after scanning 1-2 ml intravenous bolus injected pressure,level was with enhanced front. Result:In 50 patients after the scan,48 cases diagnosed with subdural hematoma,2 cases diagnosed after enhanced scan and follow-up,scan diagnosis rate was 96%. hematoma shapes were 53,acute and subacute hematoma was 19,showed a crescent-shaped hematoma,Chronic subdural hematoma was 34,8 crescent-shaped,14 showed a half-moon,12 double-convex.11 acute hematoma hematoma density were high density,5 for high-density in 8 subacute hematoma,mixed-density 3.34 chronic hematoma 9 mixed density,21 of equal density,low density 4.Acute subdural hematoma with high-density-based,subacute and chronic subdural hematoma lower high-density ratios,such as density or mixed-density ratio increases.Conclusion:CT scans can increase the rate of clinical diagnosis of subdural hematoma,provide the basis for clinical treatment.%目的：探讨CT诊断硬膜下血肿的临床价值。方法：对50例硬膜下血肿患者采用美国GE全身CT扫描机，距阵256×256，层厚1.0 cm，扫描时间4.8秒。50例中18例同时行增强扫描，造影剂为60%泛影葡胺，按每公斤体重1~2 ml静脉加压快速注射后立即扫描，层次同增强前。结果：50例患者经平扫后，48例诊断为硬膜下血肿，2例经增强扫描和随访后明确诊断，平扫诊断符合率96%。53个血肿形态各异，急性和亚急性血肿19个，血肿均呈新月形，慢性硬膜下血肿34个，8个呈新月形，14个呈半月形，12个呈双凸形；急性血肿11个均为高密度；8个亚急性血肿5个为高密度，3个为混合密度；34个慢性血肿9个为混合密度，21个为等密度，4个为低密度。急性硬膜下血肿以高密度为主，亚急性和慢性硬膜下血肿高密度比率降低，等密度或混合型密度比率增加。结论：CT扫描可提高硬膜下血肿的临床诊断率，为临床治疗提供依据。