Noninvasive Follow-Up of Coronary Artery Bypass Graft Patency Using Multi-Slice Computed Tomography
Journal of the Korean Radiological Society
; : 451-459, 2006.
Article
em En
| WPRIM
| ID: wpr-227852
Biblioteca responsável:
WPRO
ABSTRACT
PURPOSE: We wanted to evaluate the utility of multi-slice computerized tomography (MSCT) for assessing coronary artery bypass graft patency and/or occlusion. MATERIALS AND METHODS: For 24 patients, both conventional angiography and CT angiography with 4-MSCT were performed within seven days of one another in order to evaluate the accuracy of MSCT with regard to graft patency and/or occlusion. A follow-up CT angiogram was performed in patients with and without symptoms (n=11, n=34, respectively) with 4- or 16-MSCT. We retrospectively compared the results of MSCT to those of conventional coronary graft angiography. RESULTS: Sixty-five grafts were evaluated for the accuracy of MSCT. Six of those 65 were occluded. The sensitivity, specificity, positive predictive value and negative predictive values of MSCT for the diagnosis of graft occlusion were 100% (6/6), 98% (58/59), 86% (6/7) and 100% (58/58), respectively. Patency could not be determined by angiography in two grafts; however, the grafts proved to be patent on MSCT. On follow-up, new graft occlusions in the asymptomatic patients were detected by MSCT in 8.2% of the previously patent grafts at the two years post-op, and in 15.2% at the three years post-op. CONCLUSION: MSCT is a practical and accurate noninvasive diagnostic tool for following up coronary artery bypass grafts.
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Base de dados:
WPRIM
Assunto principal:
Angiografia
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Ponte de Artéria Coronária
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Estudos Retrospectivos
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Seguimentos
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Sensibilidade e Especificidade
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Vasos Coronários
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Transplantes
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Diagnóstico
Tipo de estudo:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
/
Risk_factors_studies
Limite:
Humans
Idioma:
En
Revista:
Journal of the Korean Radiological Society
Ano de publicação:
2006
Tipo de documento:
Article