Temporal averaging for quantification of lumen dimensions in intravascular ultrasound images
نویسندگان
چکیده
منابع مشابه
Discrimination of intravascular lumen and dissections in single intravascular ultrasound images using subtraction, conventional averaging and saline flush.
With current 30-MHz intravascular ultrasound systems, flowing blood may cause considerable backscatter which in real-time images is characterized by dynamic speckle. However, in a single intravascular ultrasound image (still-frame) the discrimination between arterial lumen and wall may be difficult due to the frozen intraluminal speckle, particularly in the presence of dissections. We compared ...
متن کاملIntravascular ultrasound measurement of the aortic lumen.
Intravascular ultrasound (IVUS) has been successfully used to guide the implantation of stents in the thoracic aorta. However, its accuracy in measuring the diameter of the aortic lumen has not been clearly established. Thirteen patients with thoracic aortic disease underwent IVUS, and lumen diameter measurements were compared with those obtained by CT or magnetic resonance imaging. A total of ...
متن کاملAutomatic Segmentation of Lumen in Intravascular Ultrasound Images Using Fuzzy Clustering and Active Contours
Intravascular ultrasound (IVUS) imaging constitutes a widely used technique for coronary heart disease diagnosis and management of arterial atherosclerosis. The identification of lumen and media-adventitia boundaries in IVUS images is necessary for an efficient quantitative assessment of atherosclerotic plaques. In this paper, a new automated approach for lumen border detection is proposed. Thi...
متن کاملA Novel 3D Segmentation Method of the Lumen from Intravascular Ultrasound Images
In this paper a novel method that automatically detects the lumenintima border on an intravascular ultrasound sequence (IVUS) is presented. First, a 3D co-occurrence matrix was used to efficiently extract the texture information of the IVUS images through the temporal sequence. By extracting several co-occurrence matrices a complete characterization feature space was determined. Secondly, using...
متن کامل[Development of software for three-dimensional reconstruction and automatic quantification of intravascular ultrasound images. Initial experience].
INTRODUCTION AND OBJECTIVES Quantification of intravascular ultrasound (IVUS) images is essential in ischemic heart disease and interventional cardiology. Manual analysis is very slow and expensive. We describe an automated computerized method of analysis that requires only minimal initial input from a specialist. METHODS This study was carried out by interventional cardiologists and biomedic...
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ژورنال
عنوان ژورنال: Ultrasound in Medicine & Biology
سال: 1994
ISSN: 0301-5629
DOI: 10.1016/0301-5629(94)90076-0