CAJ | 학술논문

目的探讨双源 CT(DSCT)在评估儿童肺动脉发育异常中的诊断价值.资料与方法心脏超声拟诊为先天性心脏病合并肺动脉发育畸形及临床怀疑有肺动脉发育异常的36例患儿,行 DSCT 心胸联合血管成像.所得图像全部传入后处理工作站,进行多平面重组(MPR)、最大密度投影(MIP)及容积再现(VR)等后处理,以显示肺动脉及其分支形态及密度,并与手术及 X 线心血管造影检查结果进行对照.结果36例患儿术前 DSCT 血管造影均获得满意图像,运用5点法评价所得平均主观图像质量评分为(4.3±0.6)分;准确诊断肺动脉发育异常41处,漏诊 1处为两肺动脉分叉处远端周围肺动脉狭窄,准确率为97.6%;所得平均有效辐射剂量为(1.78±0.31)mSv.结论 DSCT 在肺动脉发育异常的诊断中可以保证图像质量,满足诊断的需要.
목적탐토쌍원 CT(DSCT)재평고인동폐동맥발육이상중적진단개치.자료여방법심장초성의진위선천성심장병합병폐동맥발육기형급림상부의유폐동맥발육이상적36례환인,행 DSCT 심흉연합혈관성상.소득도상전부전입후처리공작참,진행다평면중조(MPR)、최대밀도투영(MIP)급용적재현(VR)등후처리,이현시폐동맥급기분지형태급밀도,병여수술급 X 선심혈관조영검사결과진행대조.결과36례환인술전 DSCT 혈관조영균획득만의도상,운용5점법평개소득평균주관도상질량평분위(4.3±0.6)분;준학진단폐동맥발육이상41처,루진 1처위량폐동맥분차처원단주위폐동맥협착,준학솔위97.6%;소득평균유효복사제량위(1.78±0.31)mSv.결론 DSCT 재폐동맥발육이상적진단중가이보증도상질량,만족진단적수요.
Purpose To explore the value of dual-source CT (DSCT) angiography in evaluating the dysplastic pulmonary arteries in children. Materials and Methods Thirty-six children suspected with congenital heart disease combined with pulmonary artery malformation or with pulmonary artery dysplasia underwent DSCT cardiothoracic angiography. The original images were transferred to an external post-processing workstation, multiple planar reformation (MPR), maximum intensity projection (MIP) and volume rendering (VR) were used to show pulmonary artery morphology and density. The results were compared with surgical and/or conventional cardiac angiography findings. Results Image quality of all 36 children was satisfied, the mean subjective image quality score was (4.3±0.6) evaluated by 5-point method. A total of 41 separate pulmonary dysplastic were revealed, and a distal pulmonary artery stenosis at the pulmonary arterial bifurcation was missed. The accuracy of DSCT angiography was 97.6%. The mean radiation dosage was (1.78±0.31)mSv. Conclusion DSCT angiography provides good image quality to meet the need of diagnosis.