Quantification of coronary hemodynamics and plaque morphology using X-ray angiography and intravascular ultrasound
نویسنده
چکیده
While the mechanisms of plaque development in coronary arteries are not yet completely understood, vessel geometry and its influence on hemodynamics are of major importance. This manuscript presents an overview on our method for spatio-temporal modeling of the coronary arteries by fusion of data from x-ray angiography and intravascular ultrasound (IVUS) and elaborates on the aspects of 4-D computational hemodynamics as well as an approach to directly correlate vessel geometry with plaque morphology.
منابع مشابه
Assessment of coronary plaque morphology by contrast-enhanced computed tomographic angiography: comparison with intravascular ultrasound.
BACKGROUND Computed tomographic (CT) angiography provides accurate noninvasive assessment for coronary artery stenosis. The ability of CT angiography to determine plaque morphology remains unclear. METHODS Twelve patients undergoing intravascular ultrasound for clinical indications underwent CT angiography for the evaluation of plaque morphology. Plaque morphology was classified as (1) soft, ...
متن کاملایمنی، اثربخشی و هزینه اثربخشی فناوری تصویربرداری داخل عروقی در مقایسه با آنژیوگرافی در مداخلات عروق کرونر : ارزیابی سریع فناوری سلامت
Background: Intravascular imaging is a tool to detect coronary artery atherosclerosis which plays the major role in vessel stenosis degree determination and plaque pathology as a supplement of invasive angiography. This study aimed at comparing Intravascular imaging with invasive angiography. Materials and Methods: For retrieving second type studies, PubMed, Cochrane Library and Centre for R...
متن کاملProspective validation of standardized, 3-dimensional, quantitative coronary computed tomographic plaque measurements using radiofrequency backscatter intravascular ultrasound as reference standard in intermediate coronary arterial lesions: results from the ATLANTA (assessment of tissue characteristics, lesion morphology, and hemodynamics by angiography with fractional flow reserve, intravascular ultrasound and virtual histology, and noninvasive computed tomography in atherosclerotic plaques) I study.
OBJECTIVES This study sought to determine the accuracy of 3-dimensional, quantitative measurements of coronary plaque by computed tomography angiography (CTA) against intravascular ultrasound with radiofrequency backscatter analysis (IVUS/VH). BACKGROUND Quantitative, 3-dimensional coronary CTA plaque measurements have not been validated against IVUS/VH. METHODS Sixty patients in a prospect...
متن کاملI Prefer Imaging-Guided PCI
Coronary angiography is routinely employed to guide decision making in patients undergoing percutaneous coronary interventions (PCI). However, its luminological limitations are well known. Intravascular ultrasound (IVUS) is a well-established intravascular imaging tool that not only assesses the severity of luminal stenosis but also can provide an accurate description of plaque morphology and c...
متن کاملPlaque development, vessel curvature, and wall shear stress in coronary arteries assessed by X-ray angiography and intravascular ultrasound
The relationships among vascular geometry, hemodynamics, and plaque development in the coronary arteries are complex and not yet well understood. This paper reports a methodology for the quantitative analysis of in vivo coronary morphology and hemodynamics, with particular emphasis placed on the critical issues of image segmentation and the automated classification of disease severity. We were ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2004