Rolling ball sifting algorithm for the augmented visual inspection of carotid bruit auscultation
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چکیده
منابع مشابه
Rolling ball sifting algorithm for the augmented visual inspection of carotid bruit auscultation
Carotid bruits are systolic sounds associated with turbulent blood flow through atherosclerotic stenosis in the neck. They are audible intermittent high-frequency (above 200 Hz) sounds mixed with background noise and transmitted low-frequency (below 100 Hz) heart sounds that wax and wane periodically. It is a nontrivial task to extract both bruits and heart sounds with high fidelity for further...
متن کاملThe carotid bruit
© 2002 Blackwell Science Ltd INTRODUCTION When faced with a patient who may have had a stroke or transient ischaemic attack (TIA), one needs to ask oneself some simple questions: was the event vascular?; where was the brain lesion, and hence its vascular territory?; what was the cause? A careful history and focused physical examination are essential steps in getting the right answers. Although ...
متن کاملObservations on the carotid bruit.
The reported results of surgical treatment of carotid atheroma indicate that disobliteration of an occluded vessel is relatively safe but unlikely to produce much benefit, whereas operating on a stenosed artery is more hazardous but also more rewarding. This naturally throws great emphasis on the diagnosis of carotid stenosis as opposed to occlusion, a difficult clinical exercise. Patients with...
متن کاملthe algorithm for solving the inverse numerical range problem
برد عددی ماتریس مربعی a را با w(a) نشان داده و به این صورت تعریف می کنیم w(a)={x8ax:x ?s1} ، که در آن s1 گوی واحد است. در سال 2009، راسل کاردن مساله برد عددی معکوس را به این صورت مطرح کرده است : برای نقطه z?w(a)، بردار x?s1 را به گونه ای می یابیم که z=x*ax، در این پایان نامه ، الگوریتمی برای حل مساله برد عددی معکوس ارانه می دهیم.
15 صفحه اولThe Rolling Ball
Interactive graphics systems often need techniques that allow the user to rotate graphical objects freely in three-dimensional space using commonly-available two-dimensional input devices such as a mouse. Achieving this goal is hampered by the fact that there is no single natural mapping from the two parameters of the input device to the three-parameter space of orientations. Here we i n troduc...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2016
ISSN: 2045-2322
DOI: 10.1038/srep30179