• A major assumption in arterial spin labeling (ASL) MRI perfusion quantification is the time course of the signal on arrival in the capillary network. (ox.ac.uk)
  • Advances in arterial spin labelling MRI methods for measuring perfusion and collateral flow. (ox.ac.uk)
  • With the publication in 2015 of the consensus statement by the perfusion study group of the International Society for Magnetic Resonance in Medicine (ISMRM) and the EU-COST action 'ASL in dementia' on the implementation of arterial spin labelling MRI (ASL) in a clinical setting, the development of ASL can be considered to have become mature and ready for clinical prime-time. (ox.ac.uk)
  • The aim of my main research is to develop and validate MRI pulse sequences and post-processing tools for assessment of perfusion-related parameters using gd-based contrast agents (Dynamic Susceptibility Contrast MRI - DSC-MRI) and non-invasive methods (Arterial Spin Labelling - ASL and Intra Voxel Incoherent Motion - IVIM). (lu.se)
  • The normally assumed square label profile is not preserved during transit of the label through the vasculature. (ox.ac.uk)
  • Uncertainty of the achieved labelling efficiency in pseudo-continuous ASL (pCASL) as well as the presence of arterial transit time artefacts, can be considered the main remaining challenges for the use of quantitative cerebral blood flow (CBF) values. (ox.ac.uk)
  • These two avenues came together in the development of arterial spin labeling (ASL) MRI techniques to measure regional cerebral blood flow. (nih.gov)
  • Quantitative measurement of cerebral blood flow (CBF) using arterial spin labeling (ASL) MRI requires the acquisition of multiple inversion times (TIs) and the application of an appropriate kinetic model. (ox.ac.uk)
  • Dopaminergic modulation of regional cerebral blood flow: An arterial spin labelling study of genetic and pharmacological manipulation of COMT activity. (ox.ac.uk)
  • We then assessed regional cerebral blood flow at rest using pulsed arterial spin labelling. (ox.ac.uk)
  • Validation of planning-free vessel-encoded pseudo-continuous arterial spin labeling MR imaging as territorial-ASL strategy by comparison to super-selective p-CASL MRI. (ox.ac.uk)
  • Functional CBF maps were measured with an arterial spin labeling technique, and ten regional CBF values were obtained by registration between the CBF map and Talairach atlas using an affine transformation and a free form deformation. (scirp.org)
  • PURPOSE: Vessel-encoded (VE) pseudo-continuous arterial spin labeling (p-CASL) is a territorial ASL (T-ASL) technique to identify the perfusion territories of cerebral arteries. (ox.ac.uk)
  • The pain matrix: reloaded or reborn as we image tonic pain using arterial spin labelling. (ox.ac.uk)
  • We applied two systems based on an arterial neural network (ANN) and a support vector machine (SVM), which were trained with 4 morphological and 6 functional image features, to 15 AD patients and 15 clinically normal (CN) subjects for classification of AD. (scirp.org)
  • The development of anatomical brain MRI quickly had as a major goal the generation of angiograms using tricks to label flowing blood in macroscopic vessels. (nih.gov)
  • Lateral and (B) ventral views of arterial blood supply to the canine brain. (frontiersin.org)
  • All but the caudal cerebellar arteries branch from a ring at the base of the brain, called the cerebral arterial circle or the Circle of Willis, which is formed from the paired internal carotid arteries and the basilar artery ( 1 , 4 ). (frontiersin.org)