内蒙古民族大学学报（自然科学版）
內矇古民族大學學報（自然科學版）
내몽고민족대학학보（자연과학판）
Journal of Inner Mongolia University for Nationalities (Natural Sciences)
2015年
5期
431-435
,共5页
螺旋CT%肺动脉栓塞%多层
螺鏇CT%肺動脈栓塞%多層
라선CT%폐동맥전새%다층
Spiral CT%Pulmonary embolism%Multi-slice
目的：探讨研究多层螺旋CT在肺动脉栓塞诊断中的应用价值.方法：采用64层螺旋CT检查诊断28例疑似为肺动脉栓塞患者，以非离子碘比醇为造影剂，获得扫描定位像，扫描完毕用计算机分别进行0.75mm、1.5mm、3.0mm、5.0mm层厚三维图像重建，观察肺动脉叶、段、亚段肺动脉支数，同时记录有无肺动脉栓子.结果：28例患者均诊断为肺动脉栓塞，主肺动脉在四组不同层厚的图像中显示率为100%，四组不同层厚组叶动脉显示率比较无显著性差异（P>0.05），段、亚段、5级、6级动脉显示率相比具有显著性差异（P<0.05）；左肺下叶栓塞血管数明显多于右肺上叶、右肺中叶、右肺下叶和左肺上叶，0.75mm和1.5mm层厚图像叶、段、亚段动脉显示及栓塞血管数基本一致，优于3.0mm和5.0mm层厚；四组不同层厚图像显示不同肺动脉平均栓子数显示率，0.75mm层厚组和1.5mm层厚组比较无显著性差异（P>0.05），明显优于3.0mm和5.0mm层厚组.结论：1.5mm层厚重建64层螺旋CT肺动脉造影能有效提高肺动脉和肺动脉栓子的显示率，提高肺动脉栓塞的诊断效率和准确度，有重要的临床诊断价值.
目的：探討研究多層螺鏇CT在肺動脈栓塞診斷中的應用價值.方法：採用64層螺鏇CT檢查診斷28例疑似為肺動脈栓塞患者，以非離子碘比醇為造影劑，穫得掃描定位像，掃描完畢用計算機分彆進行0.75mm、1.5mm、3.0mm、5.0mm層厚三維圖像重建，觀察肺動脈葉、段、亞段肺動脈支數，同時記錄有無肺動脈栓子.結果：28例患者均診斷為肺動脈栓塞，主肺動脈在四組不同層厚的圖像中顯示率為100%，四組不同層厚組葉動脈顯示率比較無顯著性差異（P>0.05），段、亞段、5級、6級動脈顯示率相比具有顯著性差異（P<0.05）；左肺下葉栓塞血管數明顯多于右肺上葉、右肺中葉、右肺下葉和左肺上葉，0.75mm和1.5mm層厚圖像葉、段、亞段動脈顯示及栓塞血管數基本一緻，優于3.0mm和5.0mm層厚；四組不同層厚圖像顯示不同肺動脈平均栓子數顯示率，0.75mm層厚組和1.5mm層厚組比較無顯著性差異（P>0.05），明顯優于3.0mm和5.0mm層厚組.結論：1.5mm層厚重建64層螺鏇CT肺動脈造影能有效提高肺動脈和肺動脈栓子的顯示率，提高肺動脈栓塞的診斷效率和準確度，有重要的臨床診斷價值.
목적：탐토연구다층라선CT재폐동맥전새진단중적응용개치.방법：채용64층라선CT검사진단28례의사위폐동맥전새환자，이비리자전비순위조영제，획득소묘정위상，소묘완필용계산궤분별진행0.75mm、1.5mm、3.0mm、5.0mm층후삼유도상중건，관찰폐동맥협、단、아단폐동맥지수，동시기록유무폐동맥전자.결과：28례환자균진단위폐동맥전새，주폐동맥재사조불동층후적도상중현시솔위100%，사조불동층후조협동맥현시솔비교무현저성차이（P>0.05），단、아단、5급、6급동맥현시솔상비구유현저성차이（P<0.05）；좌폐하협전새혈관수명현다우우폐상협、우폐중협、우폐하협화좌폐상협，0.75mm화1.5mm층후도상협、단、아단동맥현시급전새혈관수기본일치，우우3.0mm화5.0mm층후；사조불동층후도상현시불동폐동맥평균전자수현시솔，0.75mm층후조화1.5mm층후조비교무현저성차이（P>0.05），명현우우3.0mm화5.0mm층후조.결론：1.5mm층후중건64층라선CT폐동맥조영능유효제고폐동맥화폐동맥전자적현시솔，제고폐동맥전새적진단효솔화준학도，유중요적림상진단개치.
Objective:To explore the application value of multi-slice spiral CT in diagnosis of pulmonary embolism. Methods:Using 64-slice spiral CT to diagnose 28 cases of suspected pulmonary embolism patients. Nonionic Io-bitridol was used as contrast agent to gain the scanning and positioning image. After scanning, we used computer to reconstruct the three-dimensional image based on slice thickness of 0.75mm, 1.5mm, 3.0mm and 5.0mm respective-ly. Meanwhile, we observed the pulmonary lobar, segmental, subsegmental vessels and recorded if there was pulmo-nary embolus. Results:28 patients were all diagnosed as pulmonary embolism. The display rates of the main pulmo-nary artery in the four different thickness groups were all 100%. In the four thicknesses groups, the display rate of lo-bar artery was no obvious differences(P>0.05), of segmental, subsegmental, grade 5 and grade 6 arteries were obvi-ous difference(P<0.05). The number of embolism vessels in the left lower lobe was significantly higher than that of the right upper lobe, right middle lobe and right lower lobe,and left upper lobe. The four different thicknesses groups show different average pulmonary artery embolus displaying rates. There was no obvious difference between 0.75mm and 1.5mm thicknesses group(P>0.05), they both were obviously better than that of 3.0mm and 5.0mm thicknesses group. Conclusion:The 64-slice spiral pulmonary artery angiography of 1.5mm thickness reconstruction can effec-tively improve the pulmonary artery and pulmonary embolus displaying rate, which will improve the diagnosis effi-ciency and accuracy of pulmonary embolism, so it has an important clinical diagnosis value.
