Non-invasive coronary bypass graft imaging after multivessel revascularisation.
Int J Cardiol
; 76(1): 65-74, 2000 Oct.
Article
in En
| MEDLINE
| ID: mdl-11121598
ABSTRACT
Non-invasive imaging techniques for the detection of graft patency after multivessel coronary revascularisation may be useful for follow-up after surgery. Forty consecutive asymptomatic patients (38 men, age 59.9+/-1.3 years) who had undergone coronary bypass surgery with at least three grafts were examined by spiral computed tomography or magnetic resonance angiography 24.9+/-0.3 months after surgery, using conventional angiography as reference. In total, 133 grafts (37 internal mammary artery, 96 venous grafts) were analysed. Spiral computed tomography studies were performed with a subsecond scanner; for magnetic resonance angiography, a three-dimensional contrast-enhanced gradient echo technique with ultrashort echo time during breath holding was used. For spiral computed tomography, sensitivities were 76% (internal mammary artery) and 100% (venous graft). This was compared with 100% (internal mammary artery) and 92% (venous graft) assessed by magnetic resonance angiography (P=ns). The positive predictive values were 100% for internal mammary artery and venous graft (spiral computed tomography) and 100% (internal mammary artery), 92% for venous grafts studied by magnetic resonance angiography (P=ns). Both subsecond spiral computed tomography and contrast-enhanced magnetic resonance angiography are highly accurate and relatively non-invasive approaches of assessing coronary graft patency after multivessel revascularisation and have potential for follow-up assessment in the long term.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Vascular Patency
/
Tomography, X-Ray Computed
/
Coronary Artery Bypass
/
Coronary Angiography
/
Magnetic Resonance Angiography
Type of study:
Diagnostic_studies
/
Observational_studies
/
Risk_factors_studies
Limits:
Humans
/
Male
/
Middle aged
Language:
En
Journal:
Int J Cardiol
Year:
2000
Document type:
Article
Affiliation country:
Germany