Coronary artery bypass grafts: improved electron-beam tomography by prolonging breath holds with preoxygenation.
cross_sectional · Level IV
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- Record sourced from PubMed, PMID 11012457.
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Abstract
In 45 patients with coronary bypass grafts, the breath-hold interval with and that without preoxygenation was measured. Its effect on depiction of the distal graft anastomosis at electron-beam tomography was evaluated. Preoxygenation prolonged the breath-hold interval in most patients, thereby allowing greater anatomic coverage including more distal anastomoses. Preoxygenation may improve scanning of coronary bypass grafts and increase detectability of graft stenoses.
Medical subject headings
- Coronary Artery Bypass
- Coronary Disease
- Tomography, X-Ray Computed