Unknown

Dataset Information

0

A method for reducing the effects of motion contamination in arterial spin labeling magnetic resonance imaging.

ABSTRACT: Arterial spin labeling (ASL) is a noninvasive method to measure cerebral blood flow (CBF). Arterial spin labeling is susceptible to artifact generated by head motion; this artifact is propagated through the subtraction procedure required to calculate CBF. We introduce a novel strategy for mitigating this artifact based on weighting tag/control volumes according to a noise estimate. We evaluated this strategy (DVARS weighting) in application to both pulsed ASL (PASL) and pseudo-continuous ASL (pCASL) in a cohort of normal adults (N=57). Application of DVARS weighting significantly improved test-retest repeatability as assessed by the intra-class correlation coefficient. Before the application of DVARS weighting, mean gray matter intra-class correlation (ICC) between subsequent ASL runs was 0.48 and 0.51 in PASL and pCASL, respectively. With weighting, ICC was significantly improved to 0.63 and 0.58.

SUBMITTER: Tanenbaum AB 

PROVIDER: S-EPMC4640315 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature

Json Xml
altmetric image

Publications

A method for reducing the effects of motion contamination in arterial spin labeling magnetic resonance imaging.

Tanenbaum Aaron B AB   Snyder Abraham Z AZ   Brier Matthew R MR   Ances Beau M BM  

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 20150603 10

Arterial spin labeling (ASL) is a noninvasive method to measure cerebral blood flow (CBF). Arterial spin labeling is susceptible to artifact generated by head motion; this artifact is propagated through the subtraction procedure required to calculate CBF. We introduce a novel strategy for mitigating this artifact based on weighting tag/control volumes according to a noise estimate. We evaluated this strategy (DVARS weighting) in application to both pulsed ASL (PASL) and pseudo-continuous ASL (pC  ...[more]

Similar Datasets

Unknown Hypertension and cerebral vasoreactivity: a continuous arterial spin labeling magnetic resonance imaging study.
| S-EPMC3040032 | biostudies-literature
Unknown Feasibility of Arterial Spin Labeling Magnetic Resonance Imaging for Musculoskeletal Tumors with Optimized Post-Labeling Delay.
| S-EPMC9600497 | biostudies-literature
Unknown Quantitative functional magnetic resonance imaging of brain activity using bolus-tracking arterial spin labeling.
| S-EPMC2949184 | biostudies-literature
Unknown Brain perfusion magnetic resonance imaging using pseudocontinuous arterial spin labeling in 314 dogs and cats.
| S-EPMC8478041 | biostudies-literature
Unknown Evaluation of Renal Blood Flow in Chronic Kidney Disease Using Arterial Spin Labeling Perfusion Magnetic Resonance Imaging.
| S-EPMC5575771 | biostudies-literature
Unknown Arterial Spin Labeling Magnetic Resonance Imaging Estimation of Antegrade and Collateral Flow in Unilateral Middle Cerebral Artery Stenosis.
| S-EPMC4729602 | biostudies-literature
Unknown Arterial Spin Labeling Magnetic Resonance Imaging in Healthy Adults: Mathematical Model Fitting to Assess Age-Related Perfusion Pattern.
| S-EPMC8236374 | biostudies-literature
Unknown Positron emission tomography/magnetic resonance hybrid scanner imaging of cerebral blood flow using (15)O-water positron emission tomography and arterial spin labeling magnetic resonance imaging in newborn piglets.
| S-EPMC4635240 | biostudies-literature
Unknown Grading of Glioma: combined diagnostic value of amide proton transfer weighted, arterial spin labeling and diffusion weighted magnetic resonance imaging.
| S-EPMC7227252 | biostudies-literature
Unknown Comparison of cerebral blood flow acquired by simultaneous [15O]water positron emission tomography and arterial spin labeling magnetic resonance imaging.
| S-EPMC4126098 | biostudies-literature