Cepstral estimation of arterial input functions in brain perfusion imaging
نویسندگان
چکیده
منابع مشابه
Arterial Input Function for Bolus Tracking Perfusion Imaging in the Brain
Elias Kellner, Irina Mader, Daniel Nico Splitthoff, Marco Reisert, Katharina Förster, Thao Nguyen-Thanh, Peter Gall, and Valerij G. Kiselev Department of Radiology, Medical Physics, University Medical Center Freiburg, D-79106 Freiburg, Germany, Section of Neuroradiology, Neurocenter of the Freiburg University Hospital, D-79106 Freiburg, Germany, Department of Cardiovascular Surgery, Albert-Ludw...
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BACKGROUND AND PURPOSE Brain hypervascular diseases are complex and induce hemodynamic disturbances on brain parenchyma, which are difficult to accurately evaluate by using perfusion-weighted (PWI) MR imaging. Our purpose was to test and to assess the best AIF estimation method among 4 patients with brain hypervascular disease and healthy volunteers. METHODS Thirty-three patients and 10 healt...
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Background Modern MRI myocardial perfusion protocols use rapid venous bolus injections, typically 3-5 ml/s of 5-15 ml of agent over a few seconds. The resulting arterial input functions are rapidly varying with high agent concentrations (Fig. 1A and 1B) and thus typically require high temporal resolution acquisitions (~1 sec), custom pulse sequences and complex processing methods for perfusion ...
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An automated method for determination of arterial input function (AIF) for rapid determination of cerebral perfusion with dynamic susceptibility contrast magnetic resonance (MR) imaging was derived. In 100 patients, the automated method was used to create images of relative blood flow, relative cerebral blood volume, and mean transit time. In 20 patients, the voxel chosen with the automated AIF...
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ژورنال
عنوان ژورنال: Journal of Magnetic Resonance Imaging
سال: 2007
ISSN: 1053-1807,1522-2586
DOI: 10.1002/jmri.21115