摘要
目的:探讨16层螺旋CT冠状动脉成像技术临床应用价值。方法:对45例临床诊断或可疑冠心病的住院患者行16层螺旋CT冠状动脉回顾性心电门控平扫及增强扫描。将增强扫描图像传送到Wizard图像工作站进行最大密度投影(MIP)、多平面重组(MPR)、曲面重组(CPR)、容积再现技术(VRT)及平带多平面重组(RMPR)。并将VRT及MIP重组像为参照,用平扫图像对冠状动脉各支段进行钙化积分。结果:左冠状动脉主干(LM)、左前降支近中段(LAD1、LAD2)、第一对角支(D1)、左回旋支(LCX)及右冠状动脉近段(RCA1)显示均45例(100%),左前降支远段(LAD3)23例(51%),第二对角支(D2)30例(67%),第三对角支(D3)24例(53%),第一左缘支(M1)36例(80%),第二缘支(M2)28例(62%),右冠状动脉中段(RCA2)41例(91%),右冠状动脉远段(RCA3)43例(96%)及后降支(PDA)34例(76%)。左冠状动脉主干钙化12例(27%),左前降支近中段钙化有29例(64%),左回旋支钙化例数22例(49%),右冠状动脉近中段钙化有24例(53%)。结论:16层螺旋CT可对冠状动脉进行钙化积分并准确显影,是冠状动脉粥样硬化疾病筛选和诊断的首选方法。
Objective:To evaluate the imaging technique and the clinical application of coronary angiography with 16-slice helical CT.Methods:Plain and enhanced 16-slice helical CT imaging was studied with retrospective ECG gating in 45 in-patients with coronary heart disease affirmed or suspected in clinic.Calcium scoring with plain scan imaging and MIP,MPR,CPR,VRT,RMPR reconstruction with enhanced scan imaging were made in all cases on Wizard Workstation.As a imaging reference with VRT and MIP reconstruction,calcium scoring was performed in all branches of coronary artery.Results:Imaging quality was sufficient for diagnosis in 45 cases (100%) of left main (LM ),left anterior descending 1 (LAD1),left anterior descending 2 (LAD2),diagonal 1 (D1),left circumflex (LCX) and right coronary artery 1 (RCA1).23 cases (51%) of left anterior descending 3 (LAD3),30 cases (67%) of diagonal 2 (D2),24 cases (53%) of diagonal 3 (D3),36 cases (80%) of marginal 1 (M1),28 cases (62%) of marginal 2 (M2),41 cases (91%) of right coronary artery 2 (RCA2),43 cases (96%) of right coronary artery 3 (RCA3),34 cases (76%) of posterior descending branch (PDA).The calcium of coronary artery was in 12 cases (27%) of LM,left anterior descending 1,2 (LAD1,2) in 29 cases (64%),LCX in 22 cases (49%),right coronary artery 1,2 (RCA1,2) in 24 cases (53%).Conclusion:16-slice helical CT coronary angiography is the first choice method in screening and diagnosis of coronary heart disease.Calcium scoring can be evaluated and the imaging is clear.
出处
《放射学实践》
2005年第7期600-603,共4页
Radiologic Practice
