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Multislice CT angiography: a practical guide to CT angiography in vascular imaging and intervention

Department of Radiology, Aberdeen Royal Infirmary, Grampian University Hospitals Trust, Foresterhill, Aberdeen AB25 2ZN, UK

View larger version (53K): [in a new window]   Figure 1. Examples of post-processing techniques in a patient with ileofemoral disease. (a) Maximum intensity projection, (b) volume rendering and (c) curved planar reconstruction, useful in heavily calcified vessels.

View larger version (108K): [in a new window]   Figure 2. Volume rendering image of a patient with a right-sided aneurysmal descending thoracic aorta, aberrant left subclavian artery with an aneurysm at its origin (Komerall's diverticulum) causing an impression on the oesophagus, direct origin of the right common carotid from the aortic arch. A multidetector CT angiogram was the only test needed for complete evaluation.

View larger version (92K): [in a new window]   Figure 3. Endoleak seen in a patient following surgical repair. Spontaneous resolution noted subsequently.

View larger version (77K): [in a new window]   Figure 4. (a) Thrombus seen within the stent-graft following endovascular aneurysm repair. (b) This extended to cause thrombotic occlusion of one iliac limb, subsequently recovered by thrombolysis and secondary stenting.

View larger version (75K): [in a new window]   Figure 5. (a) Maximum intensity projection image showing bilateral common iliac stenosis in a patient with bilateral claudication. (b) Digital subtraction angiography image during iliac stenting demonstrates similar disease.

View larger version (123K): [in a new window]   Figure 6. Post-graft sepsis. Multidetector CT angiography demonstrates occluded graft and developing perigraft collection.

View larger version (70K): [in a new window]   Figure 7. Aneurysm of the common femoral artery. Multidetector CT angiography demonstrates the relationship to the branches, helping treatment planning.

View larger version (55K): [in a new window]   Figure 8. (a) Psuedoaneurysm from a branch of the right hepatic artery (following percutaneous biliary drainage) demonstrated on multidetector CT angiography. (b) Digital subtraction angiography image during coil embolisation of pseudoaneurysm.

View larger version (59K): [in a new window]   Figure 9. (a) Volume rendering image of two splenic artery aneurysms in a tortuous splenic artery identified on multidetector CT angiography. (b) Digital subtraction angiography image from a selective splenic angiogram during endovascular treatment. The tortuous artery would have needed multiple projections to demonstrate the aneurysms.