{"product_id":"hemodynamics-in-cerebral-arteries-and-dorothea-hollnagel-9783838108155","title":"Hemodynamics in Cerebral Arteries and Aneurysms","description":"Cerebral aneurysms develop in about 4 % of western populations and involve the risk of rupture. Blood flow patterns are of interest for understanding the pathogenesis of the lesions for a specific patient. Velocity mapping with phase-contrast magnetic resonance angiography (PC-MRA) is a non-invasive method for in vivo measurements on blood velocity. Based on these, a realistic patient-specific computer model can be generated and the flow field with all hemodynamic parameters can be simulated. As the accuracy of the PC-MRA data and subsequent modeling must be validated, a realistic flow field in a silicone phantom was investigated. Velocities were acquired under equal conditions with PC-MRA, laser Doppler velocimetry (LDV) and computational fluid dynamics (CFD). The results showed that PC-MRA was qualitatively, but not quantitatively, similar to LDV and CFD in straight arteries, while the accuracy of PC-MRA decreased in regions with complex flow patterns as present in aneurysms. Thus, it is appropriate to use PC-MRA as inlet conditions for CFD to calculate hemodynamic parameters in aneurysms, rather than to derive them directly from the measurements.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Dorothea Hollnagel\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 3838108159\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9783838108155\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e VDM Verlag Dr. Mueller E.K.\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 06\/19\/2009\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 120\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.38lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.00h x 6.00w x 0.25d","brand":"Dorothea Hollnagel","offers":[{"title":"Paperback","offer_id":48446429135103,"sku":"9783838108155","price":62.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_5a953814-acb3-4038-8c54-920f7c3d4e84.jpg?v=1777224570","url":"https:\/\/www.whiterainbookhouse.com\/products\/hemodynamics-in-cerebral-arteries-and-dorothea-hollnagel-9783838108155","provider":"WR Book House","version":"1.0","type":"link"}