Clinical Application Of Multi Slice Spiral CT Coronary Sinus Imaging

Objective:to evaluate MDCT coronary artery imaging at the same time show the coronary sinus morphological characteristics and clinical value in related diseases.Methods:171 patients are divided into four groups:43 patients of hypertension,40 patients of coronary heart disease(CHD),47 patients of hypertension complicated with coronary heart disease,41 patients without hypertension or CHD(the control group).All the 171 patients have MDCT examinations,we get the coronary artery imaging(CTA)and coronary vein angiography images,then we have post-processing technologies such as multiple planar reconstruction(MPR)and volume rendering(VR)and so on.On the axial image we measure the maximum transverse diameter(D1)of coronary sinus ostium(CSO);On the oblique sagittal image which is perpendicular to the the centerline of coronary sinus(CS)we measure the diameter of CS :the distance from top to bottom is D2,the anteroposterior diameter is D3;On the oblique image parallel to the CS we measure the CS diameter(D4);The diameter of the CS where is 0 mm,10 mm,15 mm,30mm away from the CSO is D5,D6,D7,D8,D9 respectively,and we measure the length of CS;The diameter of the CS where the posterioor vein of the left ventricle or the oblique vein of left atrium converges with CS or where the CS gets thinner suddently is D10.Results:All the 171 patients with coronary artery imaging can get excellent image of CS and its branches in cardiac diastolic period(75% RR interval).The numbers of patients of hypertension is D1(10.79±2.08),D2(9.77±1.63),D3(8.72±1.48),D4(10.07±1.64),D6(10.07 ± 1.64),D7(9.02 ± 1.76),the numbers of patients of high blood pressure complicated with coronary heart disease is D1(10.99±2.02),D2(9.81±1.63),D3(8.98± 1.75),D4(10.36 ± 1.88),D6(9.50 ± 1.94),D7(9.09 ± 1.98),the numbers of the control group is D1(8.49±1.84),D2(8.63±1.40),D3(7.46±1.37),D4(9.14±1.57),D6(8.33 ± 1.87),D7(8.03 ± 1.72),the D1,D2,D3,D4,D6,D7 have a significant difference between the patients of hypertension and the control group,the patients of high blood pressure complicated with coronary heart disease and the control group(P <0.05),but there is no significant difference in D5(P=0.215)?D8(P=0.162)?D9(P=0.083)?D10(P=0.072);The parameters of the diameter of CS have no significant difference between the patients of coronary heart disease and the control group;The length of CS have no significant difference the four groups.Conclusion:MDCT coronary artery imaging(CTA)can provide excellent images of coronary artery and coronary sinus all at once by a non-invasive way,and can show the morphological character of CS clearly by post-processing technique,we can observe the anatomic relationship of coronary artery ?CS and its branches.The morphology of CS in patients with hypertension and patients with hypertension complicated with coronary heart disease have changed,which can provide anatomical evidence for cardiac electrophysiological treatment.