OPTIMAL METHOD FOR ANGIOGRAPHIC DEFINITION AND QUANTIFICATION OF REGIONAL LEFT VENTRICULAR CONTRACTION.

Academic Article

Abstract

  • To determine which of several methods for analysis of regional left ventricular (LV) contraction was most representative, biplane LV cineangiograms were analyzed in 34 patients with no evidence of cardiovascular disease, and in 25 patients with prior ECG-documented transmural myo-cardial infarction and single vessel coronary artery disease, with the diseased vessel supplying the infarcted zone. Reference systems employed for superimposition of LV end-diastolic and end-systolic silhouettes were, (1) aortic valve long axis, (2) fixed X-ray beam markers, and (3) mid-point aortic valve. Five segmental wall motion areas were defined in each plane by radial lines, and segmental ejection fraction (SEF) was determined for each of the ten segments by a computerized system. The results indicate that regional LV wall motion can be most adequately defined and quantitated by a method of wall motion markers as reference system, and segmental wall motion areas defined by the LV end-diastolic center of mass.
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    Author List

  • Papapietro SE; Smith LR; Hood WP; Russell RO; Rackley CE; Rogers WJ
  • Start Page

  • 293
  • End Page

  • 296