Key result
Computed tomography with blind review demonstrated 67 out of 70 patent venous coronary bypass grafts in the early postoperative period.
Why the study?
Does computed tomography accurately evaluate coronary bypass graft patency in postoperative patients?
Observational (n=33)
Blind review
Does computed tomography accurately evaluate coronary bypass graft patency in postoperative patients?
Computed tomography provides a highly effective noninvasive method for evaluating venous coronary bypass graft patency in the early postoperative period.
Answers are grounded in this paper and cite their sources.
Noninvasive early CT graft assessment appears feasible; leaves open prospective validation against angiography.
Computed tomography (CT) has enabled noninvasive evaluation of coronary bypass graft patency. Thirty-three patients operated on with 75 venous coronary bypass grafts were studied in the early postoperative period. Scans were taken with geometric magnification with a field of view of 16 or 24 cm, which gave a high spatial resolution. In 12 patients, complementary angiography was performed, which demonstrated occlusion of six of the grafts. Blind review of the CT examinations demonstrated 67 out of 70 patent grafts (96%).
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Albrechtsson et al. (1981) conducted an observational in Coronary artery bypass graft (n=33). Computed tomography (CT) vs. Angiography was evaluated on Detection of patent grafts. Computed tomography with blind review demonstrated 67 out of 70 patent venous coronary bypass grafts in the early postoperative period.
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