Quantitative coronary angiography: Manual venus automated edge detection
نویسندگان
چکیده
منابع مشابه
Videodensitometric quantitative angiography after coronary balloon angioplasty, compared to edge-detection quantitative angiography and intracoronary ultrasound imaging.
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 30 MHz intracoronary ultrasound imaging were performed after successful balloon angioplasty in 161 patien...
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High-speed rotational coronary atherectomy (RA) is primarily used to treat complex lesions. Quantitative angiographic analysis of such complex lesions by edge detection is often unsuitable, whereas videodensitometry, measuring vessel dimensions independently of the target stenosis contours, may offer potential advantages. To gain insight into the operative mechanism of RA and to study the agree...
متن کاملQuantitative angiography after directional coronary atherectomy.
OBJECTIVE To assess by quantitative analysis the immediate angiographic results of directional coronary atherectomy. To compare the effects of successful atherectomy with those of successful balloon dilatation in a series of patients with matched lesions. DESIGN Case series. SETTING Tertiary referral centre. PATIENTS 62 patients in whom directional coronary atherectomy was attempted betwe...
متن کاملQuantitative Coronary Angiography in the Interventional Cardiology
Coronary angiography through selective injection of radiopaque contrast agent into the coronary arteries is currently the gold standard for evaluating coronary artery disease (CAD). Subjective visual estimation of lesion severity has been shown to be inadequate due to high degrees of intraobserver and interobserver variability (Topol & Nissen, 1995). Since the late 1980s methods and algorithms ...
متن کاملComparison of automated quantitative coronary angiography with caliper measurements of percent diameter stenosis.
Measurement of coronary artery stenosis is an invaluable tool in the study of coronary artery disease. Clinical trials and even day-to-day decision making should ideally be based on accurate and reproducible quantitative methods. Quantitative coronary angiography (QCA) using digital angiographic techniques has been shown to fulfill these requirements. Yet many laboratories have abandoned visual...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 1990
ISSN: 0735-1097
DOI: 10.1016/0735-1097(90)92307-n