Coronary artery disease cannot be reliably evaluated by 16-slice multidetector spiral computed tomography.
OBJECTIVE
Angiography by selective catheterization is the standard method for coronary artery imaging but carries a risk of rare, but serious complications. We investigated whether 16-slice multidetector spiral computed tomography (MDCT) could substitute for selective angiography for evaluation of coronary artery disease in surgically revascularized patients.


METHODS
In a setting closely resembling routine clinical practice, 45 patients who had been operated with coronary artery bypass grafting 508-1135 (mean 811) days before were examined with MDCT and conventional selective angiography on the same day. The interpreters were blinded to the results of the parallel imaging modality.


RESULTS
Significant pathology (stenosis >/=50% or occlusion) in the larger coronary artery segments was detected by MDCT with a sensitivity of 70-98% (mean 87%) and a specificity of 0-37% (mean 21%). MDCT failed to identify three of ten left main stem stenoses.


CONCLUSIONS
Sixteen-slice MDCT cannot routinely replace selective angiography for evaluation of coronary artery disease.
Bartnes
Kristian
K
Department of Cardiothoracic and Vascular Surgery, University Hospital North Norway, Tromsø, Norway. kristian.bartnes@unn.no
Sildnes
Trude
T
Iqbal
Amjid
A
Dahl-Eriksen
Oystein
O
Trovik
Thor
T
Steigen
Terje Kristian
TK
Mortensen
Rica
R
Mannsverk
Jan Torbjørn
JT
Sørlie
Dag Glen
DG
Myrmel
Truls
T
D017023:Coronary Angiography / Q000379:methods*; D001026:Coronary Artery Bypass; D023921:Coronary Stenosis / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000601:surgery; D005240:Feasibility Studies; D006801:Humans; D011237:Predictive Value of Tests; D017534:Radial Artery / Q000637:transplantation; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D036542:Tomography, Spiral Computed; D016896:Treatment Outcome; D014654:Vascular Patency