Diagnostic value of 64-slice spiral CT coronary angiography for restenosis after bypass surgery / 南方医科大学学报
Journal of Southern Medical University
;
(12): 1863-1865, 2007.
Artigo
em Chinês
| WPRIM
| ID: wpr-281520
ABSTRACT
<p><b>OBJECTIVE</b>To assess the accuracy of 64-slice spiral CT in diagnosis of restenosis of coronary artery bypass grafts (CABG) and native coronary arteries in patients after bypass surgery.</p><p><b>METHODS</b>Fifty-eight patients receiving bypass surgery with totally 140 CABG (43 arterial and 97 venous grafts) were examined using 64-slice spiral CT. CABG and all native coronary arteries with a diameter of >1.5 mm were evaluated for the presence of significant stenoses (>50% diameter reduction) in comparison with the results by coronary angiography as the golden standard.</p><p><b>RESULTS</b>Of the 140 CABG examined, 38 were occluded and 104 remained patent, all of which were accurately identified by 64-slice spiral CT. The sensitivity of CT for restenosis detection in the patent graft was 100% (18/18) with a specificity of 95.2% (80/84). In the segmental evaluation of the native coronary arteries, the sensitivity of the CT in identifying significant stenosis in the evaluable segments (90%) was 84% (87/103) with a specificity of 74% (384/518). The accuracy of CT in detecting the presence of at least 1 stenosis in the CABG, distal runoff vessels or nongrafted arteries was 91% (53/58).</p><p><b>CONCLUSION</b>CT allows noninvasive angiographic evaluation of both the native coronary arteries and bypass grafts after bypass surgery.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Patologia
/
Diagnóstico por Imagem
/
Ponte de Artéria Coronária
/
Sensibilidade e Especificidade
/
Angiografia Coronária
/
Vasos Coronários
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Reestenose Coronária
/
Tomografia Computadorizada Espiral
Tipo de estudo:
Estudo diagnóstico
Limite:
Idoso
/
Aged80
/
Feminino
/
Humanos
/
Masculino
Idioma:
Chinês
Revista:
Journal of Southern Medical University
Ano de publicação:
2007
Tipo de documento:
Artigo
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