The application of multi-slice spiral CT angiography in the aorta diseases

Objective:To estimate the ability of multi-slice spiral CT angiography(MSCTA) in displaying the aorta diseases.Methods:75 patients were suspected aortic disease with MSCTA,the contrast medium(iohexol 300 mg/100 ml) 90～100 ml,the rate was 3～4 ml/s,with Surestar technique,excretory-phase images were transferred to the workstation and performed shaded volume rendering(VR),multiplanar reconstruction(MPR),curved planar reconstruction(CPR) and maximun intensity projection(MIP).Results:75 patients showed aortic dissection in 18 cases(Ⅰtype 6 cases,Ⅱtype 3 cases,Ⅲ type 9 cases),aortic aneurysm 20 cases(ascending aorta 3 cases,aortic arch 7 cases,abdominal aortic 10 cases),aortic intramural hematoma 2 cases,atherosclerotic aortic ulcer 6 cases,congenital coarctation of the aorta 1 case;13 cases of aortic aneurysm and aortic dissection with percutaneous transluminal angioplasty.Conclusion:As a non-invasive examination,MSCTA has obvious advantage in the diagnosis of the aorta and major branch diseases.Provides various kinds of information for the clinical diagnosis and treatment.