Objective To explore the diagnostic value of abdominal aortic aneurysm (AAA) with 16-slice spiral CT.Methods Forty patients with AAA were examinated with 16-slice spiral CT. Multiplanar reformation (MPR), maximal intensity projection (MIP) and volume rendering (VR) were performed in all cases.Results Forty patients with AAA included seven cases of cystiform, twenty-three cases of shuttle and ten cases of shuttle-cystiform aneurysm. There were three cases of multiple abdominal aortic aneurysm. There was one case of pseudoaneurysm after the rupture of true aneurysm. MPR definitely revealed the site, modality and extent of aortic disease and demonstrated the mural thrombus in the aneurysm. The calcifications of abdominal aortic aneurysm’s wall or in mural thrombus were well depicted by MIP. VR definitely showed the relationship between aneurysm and arterial branches with three-dimension form.Conclusion 16-slice spiral CT is the optimal imaging technique in diagnosing, following up pre-and post-operation of abdominal aortic aneurysms.

Objective To investigate the value of imaging diagnosis of endomyocardial fibrosis(EMF).Methods Imaging findings of 28 cases of EMF were restrospectively analyzed.Results There were three types:right ventricle type(n=21),left ventricle type(n=1),and dual ventricle type(n=6).The misdiagnostic rate of EMF by X-ray plain films was high(18/28). On angiography and MRI right ventricle type presented as shortened,deformed inflow-tract,obliteration of apex and dilated outflow-tract,marked tricuspid valve regurgitation(TR) and enlarged right atrium,even dilated superior vena cava,left ventricle type presented as narrowiug and deformed inflow-tract,small and deformed left ventride,even no markedly volume changes in relaxation or contraction,obtuse cardiac apex and mitral regurgitation.Dual ventricle type owned manifestations in the two types mentioned above,but predominated by right ventricle type. Conclusion In diagnosis of EMF X-ray plain films are of less value while MRI and cardioangiography are significant,MRI is a valuable non-invasive method,it can substitutd for cardioangiography as the first choice in diagnosing EMF.