宽体探测器CT在小儿紫绀型复杂先心病测量值准确性的研究  

Accuracy of Wide-Body CT in Cyanotic Complex Congenital Heart Disease in Children

作　　者：张晓浩[1] 张计旺[1] 范丽娟[1] ZHANG Xiao-hao;ZHANG Ji-wang;FAN Li-juan(Department of Radiology,the TEDA International Cardiovascular Hospital,Binhai New District,Tianjin 300457,China)

机构地区：[1]泰达国际心血管病医院放射科,天津300457

出　　处：《中国CT和MRI杂志》2022年第9期76-78,共3页Chinese Journal of CT and MRI

摘　　要：目的 通过与经胸超声心动图(TTE)对照,评价256排宽体探测器CT扫描定量诊断紫绀型复杂先心病的能力。方法 选取在我院行影像学检查的48例紫绀型先心病儿童。比较宽体探测器CT及TTE两种检查方法 对主肺动脉、左肺动脉、右肺动脉、降主动脉、室间隔缺损(VSD)测量值及McGoon比值的差别并对三岁以下患儿体重和心率对VSD测量值及McGoon比值的影响作以分析。结果 两种检查方法 比较主肺动脉、左肺动脉、右肺动脉、降主动脉测量值以及McGoon比值均有统计学意义(P<0.05),宽体操测器CT主动脉、肺动脉直径测量值及McGoon比值显著高于TTE。VSD的大小比较差别亦有统计学意义(P=0.000),宽体探测器CT测量值显著小于TTE结果 。两种方法 对三岁以下患儿VSD的测量值及McGoon比值比较与体重和心率有关,体重越重、心率越两种方法 的一致性越好。结论 宽体探测器CT测量值对肺动脉发育不良型紫绀型先心病患儿的术前评估有重要意义。宽体探测器CT收缩期扫描会低估VSD的大小,术前需要参考TTE结果 。Objective Comparing with tra nsthora cic echocardiogra phy(TTE),the quantitative diagnosis of cyanotic complex congenital heart disease by computed tomography(CT) scanning with 256 row wide body detector was evaluated.Methods Selection in our hospital for imaging examination of 48 cases of cyanotic type congenital heart disease children.More wide-body detector CT and TTE examination method of the main pulmonary artery,left pulmonary artery and right pulmonary artery,descending aorta,ventricular septal defect(VSD) measurements and McGoon ratio difference and to evaluate the influence of body weight and heart rate on VSD and McGoon ratio of children under 3 years old.Results Two methods of examination is the main pulmonary artery,left pulmonary artery,the right pulmonary artery,descending aorta measurements and McGoon ratio had statistical significance(P<0.05).The diameter measurements of aorta and pulmonary artery and McGoon ratio of widebody detector CT were significa ntly higher than those of TTE.There was also a statistically significant difference in VSD size(P=0.000),Wide-body detector CT measurements less than TTE results significantly.The comparison of VSD measurements and McGoon ratio between the two methods for children under 3 years old was related to body weight and hea rt rate.The higher the body weight,the faster the heart rate the better the consistency between the two methods.Conclusion Widebody detector CT measurements of pulmonary dysplasia type cyanotic type preoperative assessment of the children with congenital heart disease has important significance.The size of VSD can be underestimated by the wide-body detector CT scanning in cardiac systole,and TTE results need to be referred to before surgery.

关 键 词：计算机体层成像 宽体探测器 先天性心脏病 McGoon比值 

分 类 号：R445.1[医药卫生—影像医学与核医学] R445.4[医药卫生—诊断学]