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Noninvasive visualization of coronary artery bypass grafts using 16-detector row computed tomography

Thomas Schlosser, MD^*, Thomas Konorza, MD, Peter Hunold, MD^*, Hilmar Kühl, MD^*, Axel Schmermund, MD and J.örg Barkhausen, MD^*,*

^* Department of Diagnostic and Interventional Radiology
Department of Cardiology, University Hospital, Essen, Germany

View larger version (100K): [in a new window]   Figure 1 Three-dimensional multislice spiral computed tomography reconstruction (volume rendering) showing an internal mammary artery jump-graft to the left anterior descending coronary artery and to a diagonal branch. The arrows mark the region of the anastomoses.

View larger version (107K): [in a new window]   Figure 2 Three-dimensional multislice spiral computed tomography reconstruction obtained with volume rendering technique showing an occluded internal mammary artery bypass. The bright clip material (arrows) marks the former course of the vessel.

View larger version (192K): [in a new window]   Figure 3 Three-dimensional multislice spiral computed tomography reconstruction (volume rendering) of a venous graft to the circumflex coronary artery with proximal anastomosis to the descending aorta. This graft was missed by invasive coronary angiography.

View larger version (116K): [in a new window]   Figure 4 Stented graft that was classified as significant in-stent stenosis due to a lack of contrast distal of the stent. The diagnosis was approved by invasive coronary angiography (left = maximum intensity projection; right = volume rendering technique).

View larger version (89K): [in a new window]   Figure 5 Three-dimensional multislice spiral computed tomography reconstruction (volume rendering) of a venous graft to the right coronary artery with a hemodynamically relevant stenosis (left) that was confirmed by invasive coronary angiography (right).

View larger version (130K): [in a new window]   Figure 6 Three-dimensional multislice spiral computed tomography reconstruction (volume rendering) of a venous graft to the right coronary artery with a sufficient anastomosis.