临床儿科杂志
臨床兒科雜誌
림상인과잡지
2014年
11期
1076-1079
,共4页
双源CT%先天性心脏病%辐射剂量%儿童
雙源CT%先天性心髒病%輻射劑量%兒童
쌍원CT%선천성심장병%복사제량%인동
dual-source CT%congenital%heart defect%radiation dose%child
目的：探讨双源CT(DSCT)低剂量扫描技术诊断复杂性先天性心脏病的应用价值。方法回顾性分析31例复杂性先天性心脏病患儿的DSCT资料，所有患儿均经手术证实，根据患儿年龄分为，≤4个月12例，~1岁3例；~6岁8例；>6岁8例。结果 DSCT与手术后诊断的符合率为94.59%，其中心内畸形DSCT检出率为92.86%，心脏与大血管连接畸形及心外畸形DSCT检出率为95.65%；各组平均有效辐射剂量分别为(1.16±0.06)mSv、(1.28±0.07)mSv、(1.96±0.54) mSv、(2.77±0.38)mSv。图像质量良好的占90.32%。结论运用DSCT低剂量扫描技术能清晰显示复杂性先天性心脏病的心内外畸形，并能有效地降低辐射剂量，且图像质量良好。
目的：探討雙源CT(DSCT)低劑量掃描技術診斷複雜性先天性心髒病的應用價值。方法迴顧性分析31例複雜性先天性心髒病患兒的DSCT資料，所有患兒均經手術證實，根據患兒年齡分為，≤4箇月12例，~1歲3例；~6歲8例；>6歲8例。結果 DSCT與手術後診斷的符閤率為94.59%，其中心內畸形DSCT檢齣率為92.86%，心髒與大血管連接畸形及心外畸形DSCT檢齣率為95.65%；各組平均有效輻射劑量分彆為(1.16±0.06)mSv、(1.28±0.07)mSv、(1.96±0.54) mSv、(2.77±0.38)mSv。圖像質量良好的佔90.32%。結論運用DSCT低劑量掃描技術能清晰顯示複雜性先天性心髒病的心內外畸形，併能有效地降低輻射劑量，且圖像質量良好。
목적：탐토쌍원CT(DSCT)저제량소묘기술진단복잡성선천성심장병적응용개치。방법회고성분석31례복잡성선천성심장병환인적DSCT자료，소유환인균경수술증실，근거환인년령분위，≤4개월12례，~1세3례；~6세8례；>6세8례。결과 DSCT여수술후진단적부합솔위94.59%，기중심내기형DSCT검출솔위92.86%，심장여대혈관련접기형급심외기형DSCT검출솔위95.65%；각조평균유효복사제량분별위(1.16±0.06)mSv、(1.28±0.07)mSv、(1.96±0.54) mSv、(2.77±0.38)mSv。도상질량량호적점90.32%。결론운용DSCT저제량소묘기술능청석현시복잡성선천성심장병적심내외기형，병능유효지강저복사제량，차도상질량량호。
Objective To evaluate the application of dual-source CT (DSCT) using low-dose technology in diagnosing complex congenital heart diseases. Methods The DSCT data of 31 cases with complex congenital heart diseas-es conifrmed by operation were retrospectively analysed and classiifed into four groups:group A(≤4 months old, n=12); group B (>4 months old~1 year old, n=3);group C (>1 year~6 years old, n=8) and group D (>6 years old, n=8). Results The diagnosis conformation rate of DSCT with surgery were 94.59%. The diagnostic conformation rate of intracardic anormalies using DSCT was 92.86%. And the diagnostic conformation of DSCT in patients with abnormal connection of atrium or ventri-cle to great vessels and the extrocardic anormalies was 95.65%. The average effective dose in each group were 1.16±0.06 mSv, 1.28±0.07 mSv, 1.96±0.54 mSv and 2.77±0.38 mSv, respectively. The ratio of the high quality images was 90.32%. Con-clusions The application of low dose technology in DSCT can clearly display the anomalies, and signiifcantly reduce the radiation dose without losing image quality as well.
