Results 21 to 30 of about 1,187,345 (199)

Determination of spin compartment in arterial spin labeling MRI [PDF]

Magnetic Resonance in Medicine, 2010
AbstractA major difference between arterial‐spin‐labeling MRI and gold‐standard radiotracer blood flow methods is that the compartment localization of the labeled spins in the arterial‐spin‐labeling image is often ambiguous, which may affect the quantification of cerebral blood flow.
Peiying, Liu, Jinsoo, Uh, Hanzhang, Lu
openaire   +2 more sources

Base-specific spin-labeling of RNA for structure determination [PDF]

, 2007
To facilitate the measurement of intramolecular distances in solvated RNA systems, a combination of spin-labeling, electron paramagnetic resonance (EPR), and molecular dynamics (MD) simulation is presented. The fairly rigid spin label 2,2,5,5-tetramethyl-
Olav Schiemann, Mu, Yuguang, Prisner, Thomas F., Stock, G., Engels, J.W., Prisner, TF., Thomas F. Prisner, Engels, Joachim W. (Prof. Dr.), Stock, Gerhard, Piton, N., Schiemann, Olav, Gerhard Stock, Nelly Piton, Piton, Nelly, Mu, Y., Yuguang Mu, Joachim W. Engels   +16 more
core   +1 more source

Measurement of brain perfusion in newborns: Pulsed arterial spin labeling (PASL) versus pseudo-continuous arterial spin labeling (pCASL)

NeuroImage: Clinical, 2014
Background: Arterial spin labeling (ASL) perfusion-weighted imaging (PWI) by magnetic resonance imaging (MRI) has been shown to be useful for identifying asphyxiated newborns at risk of developing brain injury, whether or not therapeutic hypothermia was ...
Elodie Boudes, Guillaume Gilbert, Ilana Ruth Leppert, Xianming Tan, G. Bruce Pike, Christine Saint-Martin, Pia Wintermark   +6 more
doaj   +1 more source

A potential new role for ASL perfusion imaging: Diagnosis of metronidazole induced encephalopathy – Two companion cases

Radiology Case Reports, 2020
Metronidazole induced encephalopathy (MIE) is a rare condition due to prolonged high dose administration of metronidazole. MIE with corresponding increased perfusion on MRI arterial spin labeling (ASL) of the involved regions of the brain appears not to ...
Vivek Yedavalli, MD, MS, Bryan Lanzman, MD   +1 more
doaj   +1 more source

Dynamic quantitative nonenhanced magnetic resonance angiography of the abdominal aorta and lower extremities using cine fast interrupted steady-state in combination with arterial spin labeling: a feasibility study

Journal of Cardiovascular Magnetic Resonance, 2019
Background Cine fast interrupted steady-state in combination with arterial spin labeling is a recently described nonenhanced magnetic resonance angiography (MRA) technique that relies on bolus tracking for time-resolved digital subtraction angiography ...
Emily A. Aherne, Ioannis Koktzoglou, Benjamin B. Lind, Robert R. Edelman   +3 more
doaj   +1 more source

Protein-induced changes in DNA structure and dynamics observed with noncovalent site-directed spin-labeling and PELDOR [PDF]

, 2012
Site-directed spin labeling and pulsed electron–electron double resonance (PELDOR or DEER) have previously been applied successfully to study the structure and dynamics of nucleic acids. Spin labeling nucleic acids at specific sites requires the covalent
Reginsson, Gunnar Widtfeldt, Rouillon, Christophe, Schiemann, Olav, Sigurdsson, Snorri T, White, Malcolm F, Shelke, Sandip, White, Malcolm F; id_orcid   +6 more
core   +1 more source

Diversifying autism neuroimaging research: An arterial spin labeling review

, 2023
Cognition and brain homeostasis depends on cerebral blood flow to secure adequate oxygen and nutrient distribution to the brain tissue. Altered cerebral blood flow has previously been reported in individuals diagnosed with autism spectrum condition in ...
Knudsen, Laust V; id_orcid, Sheldrick, Abigail J, Manouchehr S Vafaee, Tanja Maria Michel, Vafaee, Manouchehr S, Laust V Knudsen, Michel, Tanja Maria, Abigail J Sheldrick   +7 more
core   +1 more source

Real-time fMRI neurofeedback of the anterior insula using arterial spin labeling

, 2023
Dataset for the ASL neurofeedback study: "Real-time fMRI neurofeedback of the anterior insula using arterial spin ...
Doris Grössinger
core   +1 more source

Non-contrast quantitative study of brain perfusion changes in multiple sclerosis [PDF]

Digital Diagnostics
BACKGROUND: Non-contrast magnetic resonance perfusion can identify areas of cerebral perfusion changes in patients with multiple sclerosis, even in the absence of focal lesions [1]. This technique offers several advantages, including non-invasiveness [2]
Vladimir V. Popov, Yuliya A. Stankevich, Liubov M. Vasilkiv, Andrey A. Tulupov   +3 more
doaj   +1 more source

Arterial spin labeling MRI - clinical applications [PDF]

, 2019
Arterial spin labeling (ASL) is a modern magnetic-resonance technique for evaluation of brain perfusion. One of its most important advantages is that there is no need for an injection of an exogenous contrast material.
Balev, Boyan; Medical University of Varna, Kalchev, Emilian; Medical University of Varna, Georgiev, Radoslav; Medical University of Varna, Boyan Balev, Radoslav Georgiev, Emilian Kalchev   +5 more
core   +5 more sources