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A Beginner's Guide to Arterial Spin Labeling (ASL) Image Processing [PDF]
Frontiers in Radiology, 2022 Arterial spin labeling (ASL) is a non-invasive and cost-effective MRI technique for brain perfusion measurements. While it has developed into a robust technique for scientific and clinical use, its image processing can still be daunting.
Patricia Clement +2 more
exaly +13 more sources
Noninvasive Renal Perfusion Measurement Using Arterial Spin Labeling (ASL) MRI: Basic Concept [PDF]
Methods in Molecular Biology, 2021 AbstractThe kidney is a complex organ involved in the excretion of metabolic products as well as the regulation of body fluids, osmolarity, and homeostatic status. These functions are influenced in large part by alterations in the regional distribution of blood flow between the renal cortex and medulla. Renal perfusion is therefore a key determinant of
Thoralf Niendorf +2 more
exaly +7 more sources
Renal Blood Flow Using Arterial Spin Labeling (ASL) MRI: Experimental Protocol and Principles [PDF]
Methods in Molecular Biology, 2021 AbstractA noninvasive, robust, and reproducible method to measure renal perfusion is important to understand the physiology of kidney. Arterial spin labeling (ASL) MRI technique labels the endogenous blood water as freely diffusible tracers to measure perfusion quantitatively without relying on exogenous contrast agent.
Maria A Fernández-Seara +2 more
exaly +8 more sources
VESPA ASL: VElocity and SPAtially Selective Arterial Spin Labeling [PDF]
Magnetic Resonance in Medicine, 2022 PurposeSpatially selective arterial spin labeling (ASL) perfusion MRI is sensitive to arterial transit times (ATT) that can result in inaccurate perfusion quantification when ATTs are long. Velocity‐selective ASL is robust to this effect because blood is labeled within the imaging region, allowing immediate label delivery.
Joseph G Woods +2 more
exaly +5 more sources
ASL-BIDS, the brain imaging data structure extension for arterial spin labeling
Scientific Data, 2022 Arterial spin labeling (ASL) is a non-invasive MRI technique that allows for quantitative measurement of cerebral perfusion. Incomplete or inaccurate reporting of acquisition parameters complicates quantification, analysis, and sharing of ASL data ...
Patricia Clement +20 more
doaj +16 more sources
Turbo ASL: Arterial spin labeling with higher SNR and temporal resolution [PDF]
Magnetic Resonance in Medicine, 2000 A modified pulsed arterial spin labeling (ASL) technique is introduced here that has both higher temporal resolution and higher SNR per unit time than existing ASL techniques. In this technique, the time TI between the application of the tag and image acquisition is longer than the repetition time TR, allowing for the use of greatly reduced TR values ...
Thomas Liu, Wen-Ming Luh
exaly +3 more sources
Specificities of arterial spin labeling (ASL) abnormalities in acute seizure
Journal of Neuroradiology, 2020 Arterial spin labeling (ASL) is a non-invasive tool measuring cerebral blood flow (CBF) and is useful to assess acute neurological deficit. While acute stroke presents as hypoperfused vascular territory, epileptic activity causes cortical hyperperfusion. Other neurological conditions exhibit hyperperfusion, like migraine or secondary "luxury perfusion"
Joseph Benzakoun +2 more
exaly +4 more sources
Arterial Spin Labeling (ASL) fMRI: Advantages, Theoretical Constrains and Experimental Challenges in Neurosciences [PDF]
International Journal of Biomedical Imaging, 2012 Cerebral blood flow (CBF) is a well-established correlate of brain function and therefore an essential parameter for studying the brain at both normal and diseased states.
Ajna Borogovac, Iris Asllani
doaj +3 more sources
Hyperglycemic Hyperosmolar Syndrome With Higher Brain Dysfunction in Which Arterial Spin Labeling Revealed Abnormal Cerebral Blood Flow: A Case Report [PDF]
Clinical Case ReportsTreatment for hyperglycemic hyperosmolar syndrome (HHS) was initiated for a transferred unconscious patient. Aphasia and agnosia remained even after metabolic improvement.
Go Yoshimichi
doaj +2 more sources
Arterial spin labeling (ASL) perfusion: Techniques and clinical use
Diagnostic and Interventional Imaging, 2013 Arterial spin labeling (ASL) perfusion is a MRI technique to quantify tissue blood flow. ASL is a non-invasive technique that labels the protons in the arterial blood by radiofrequency pulses, without the exogenous injection of contrast media. This article has three goals: 1) present the principles of ASL perfusion, the types of labeling and the ways ...
Jean-Yves Gauvrit +2 more
exaly +4 more sources