C臂锥形束CT颅内血肿体积定量测量的实验研究

发布时间：2018-08-17 11:14

【摘要】：目的探测C臂锥形束CT对颅内血肿的定量检测能力。方法于小气球内装对比剂与水的混合物模拟颅内血肿,并按体积分为9组,每组分别接受3次MSCT和3次C臂锥形束CT扫描,将两种成像技术所得图像进行MPR,采用西门子公司的体积测量软件对每组测量3次,计算与真实体积的偏差度,并进行统计学分析。结果对于形态规则的血肿,C臂锥形束CT测量血肿体积的准确率较高,与实际血肿体积和MSCT相比差异均无统计学意义(P0.05)。对于形态不规则的血肿,在测量30ml或60ml的血肿体积时,C臂锥形束CT测量体积与实际体积相比存在误差(P0.05);测量体积为30~60ml血肿时,C臂锥形束CT测量体积与实际体积基本一致(P0.05);MSCT测量体积准确率明显高于C臂锥形束CT(P0.05)。结论合理选择C臂锥形束CT颅内血肿定量检测范围,在介入诊治中有效监测颅内出血。
[Abstract]:Objective to investigate the quantitative detection of intracranial hematoma by C arm conical beam CT. Methods Intracranial hematoma was simulated with a mixture of contrast agent and water in the balloon, and was divided into 9 groups according to volume. Each group received three MSCT scans and three C-arm conical beam CT scans. The MPRs of the images obtained from the two imaging techniques were carried out. The volume measurement software of Siemens Company was used to measure each group for 3 times. The deviation from the real volume was calculated and analyzed statistically. Results the accuracy of CT measurement of hematoma volume was higher than that of actual hematoma volume and MSCT (P0.05). For irregular hematoma, When measuring the hematoma volume of 30ml or 60ml, there is an error between the measured volume of C arm conical beam CT and the actual volume (P0.05), and when the measurement volume is 30~60ml hematoma, the measurement volume of C arm conical beam CT is basically consistent with the actual volume (P0.05). It was significantly higher than that of C arm conical beam CT (P 0.05). Conclusion the range of quantitative detection of intracranial hematoma with C arm conical beam CT is reasonably selected to monitor intracranial hemorrhage effectively in interventional diagnosis and treatment.
【作者单位】：重庆医科大学附属第一医院放射科;
【基金】：国家临床重点专科建设项目基金(国卫办[2013]544号) 重庆市卫生局科研基金重点项目(2013-1-003)
【分类号】：R651.1;R816.1

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