Videodensitometric quantitative angiography after coronary balloon angioplasty, compared to edge-detection quantitative angiography and intracoronary ultrasound imaging

Abstract

Aims To assess the value of videodensitometric quantification of the coronary lumen after angioplasty by comparison to two other techniques of coronary artery lumen quantification. Methods and Results Videodensitometric quantitative angiography, edge detection quantitative angiography and 30MHz intracoronary ultrasound imaging were performed after successful balloon angioplasty in 161 patients. Lumen cross-sectional areas were mean (SD) 2·82 (1·15)mm²for edge detection quantitative angiography, 3·67 (1·5)mm²for videodensitometric quantitative angiography and 5·32 (1·75)mm²for intracoronary ultrasound imaging (PConclusions The luminal dimensions as measured by videodensitometric quantitative angiography matched intracoronary ultrasound imaging derived dimensions more closely than edge detection quantitative angiography. Videodensitometric quantitative angiography represents an on-line alternative to intracoronary ultrasound imaging for quantitative analysis regardless of the degree of vessel damage.