Quantification of cerebral perfusion using arterial spin labeling: Two-compartment models
نویسندگان
چکیده
منابع مشابه
Cerebral blood flow quantification using vessel-encoded arterial spin labeling
Arterial spin labeling (ASL) techniques are gaining popularity for visualizing and quantifying cerebral blood flow (CBF) in a range of patient groups. However, most ASL methods lack vessel-selective information, which is important for the assessment of collateral flow and the arterial supply to lesions. In this study, we explored the use of vessel-encoded pseudocontinuous ASL (VEPCASL) with mul...
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Delay 2 s Fig. 1. ASL experiment from a volunteer at 1.5T. (a) The imaging slice and labeling slab are depicted by yellow and blue boxes. (b) Fat-saturated SPGR image. Perfusion images are shown in (c-e) for delay times of 1 s, 1.5 s and 2 s. Arteries located close to the skin are depicted well; however, perfusion in glandular tissue is hardly visible. The yellow arrow shows an artery which doe...
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Quantification of cerebral arterial blood volume (CBVa) is important for understanding vascular regulation. To enable measurement of CBVa with diffusion-weighted (DW) arterial spin labeling (ASL), a theoretical framework was developed using the effects of intravoxel incoherent motion (IVIM). The pseudo-diffusion coefficient (D*) in the IVIM model was evaluated at 9.4 T in DW-ASL of rat brain un...
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UNLABELLED This demonstrates a MR imaging method to measure the spatial distribution of pulmonary blood flow in healthy subjects during normoxia (inspired O(2), fraction (F(I)O(2)) = 0.21) hypoxia (F(I)O(2) = 0.125), and hyperoxia (F(I)O(2) = 1.00). In addition, the physiological responses of the subject are monitored in the MR scan environment. MR images were obtained on a 1.5 T GE MRI scanner...
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ژورنال
عنوان ژورنال: Journal of Magnetic Resonance Imaging
سال: 2005
ISSN: 1053-1807,1522-2586
DOI: 10.1002/jmri.20456