نتایج جستجو برای: medical flow imaging
تعداد نتایج: 1458971 فیلتر نتایج به سال:
Nederkoorn et al (1) conclude that flow voids on nonenhanced 3D time-of-flight (TOF) MR angiography (MRA) images represent severe carotid artery stenosis. Although they present compelling evidence that this conclusion is correct for their particular MR imaging system with their particular imaging parameters, radiologists should be advised of the peril of generalizing these results to any MR ima...
A 15N nuclear singlet lifetime of over 26 min has been observed in a solution of 15N2O, by using a field-cycling NMR pulse sequence. This observation suggests applications of hyperpolarized 15N2O in medical imaging and for flow and diffusion studies.
Diffuse correlation and optical spectroscopies are used to monitor cerebral blood flow and oxygenation in premature infants during changes in angular head-of-bed position. Subsequent transcranial Doppler ultrasound measurements corroborate our findings. c © 2007 Optical Society of America OCIS codes: 170.3880 Medical and biological imaging; 170.5380 Physiology
There is a growing medical interest in the prediction of the flow and forces inside cerebral aneurysms [24, 52], with the ultimate goal of supporting medical procedures and decisions by presenting viable scenarios for intervention. The clinical background of intracranial aneurysms and subarachnoid hemorrhages is well introduced in the literature such as [46, 51]. These days, with the developmen...
Photoacoustic imaging is an emerging noninvasive imaging technique with great potential for a wide range of biomedical imaging applications. However, with few-view data the filtered back-projection method will create streak artifacts. In this study, the regularized iterative weighted filtered back-projection method was applied to our photoacoustic imaging of the optical absorption in phantom fr...
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