[Quantitative computed tomographic flow measurements in aortocoronary venous bypass. I. Analysis of variance studies].
In 36 patients, 3 months after aortocoronary venous bypass (ACVB) surgery to the anterior interventricular branch of the left coronary artery, the density-time curve was assessed in the aorta and the ramus interventricularis anterior ACVB by computed tomography (CT). Mean values for area of time-density curve (1539 HU x sec.), effective width (10.9 sec.), peak CM concentration (140 HU), maximum increase of density (71 HU/sec.) and maximum decrease (53 HU/sec.) showed a significant (p greater than 0.01) difference between the results in aorta and the anterior interventricular branch ACVB for all parameters, excepting the effective width. We conclude that assessment of time density-curve parameters in the ramus interventricularis anterior ACVB is feasible; however, the results are significantly different from those obtained in the aorta. Clinical relevance of these data will be established in a second part of the study.
Mühlberger
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V
Univ. -Klinik für Innere Medizin, Innsbruck.
z Nedden
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D
Knapp
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E
D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D001026:Coronary Artery Bypass; D003326:Coronary Circulation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed
Quantitative computertomographische Flussmessungen in aortokoronaren Venenbrücken. Teil I: Varianzanalytische Untersuchungen.