Results 301 to 310 of about 66,223 (392)

Benefits and challenges of multi-delay arterial spin labeling in clinical practice: measuring perfusion and cerebrovascular reactivity in intracranial steno-occlusive disease. [PDF]

Insights Imaging
Uniken Venema SM, Bhogal A, Dankbaar JW, van der Worp HB, Hendrikse J, van der Zwan B, Braun K, Siero JCW, Deckers PT.   +8 more
europepmc   +1 more source

Outlook on zero/ultrashort echo time techniques in functional MRI

Magnetic Resonance in Medicine, Volume 95, Issue 2, Page 714-723, February 2026.
Abstract Since its introduction more than 30 years ago, the blood oxygenation level dependent (BOLD) contrast remains the most widely used method for functional MRI (fMRI) in humans and animal models. The BOLD contrast is typically acquired with echo planar imaging (EPI) to obtain sensitization of the signal during the echo time (TE) to dynamic changes
Silvia Mangia, Shalom Michaeli, Olli Gröhn   +2 more
wiley   +1 more source

Venous arterial spin labeling MRI signal is associated with oxygen supply-independent reduction in cerebral oxygen extraction in typically aging older adults. [PDF]

Imaging Neurosci (Camb)
Kufer JA, Gassner GM, Wheeler NS, Yadav SM, Mittal R, Jacoby J, Mellen SF, Maina KN, Mercaldo ND, Salat DH, Juttukonda MR.   +10 more
europepmc   +1 more source

On the structural and practical identifiability of multi‐echo BBB‐ASL tracer kinetic models

Magnetic Resonance in Medicine, Volume 95, Issue 2, Page 1205-1222, February 2026.
Abstract Purpose Tracer kinetic models are used in arterial spin labeling (ASL); however, deciding which model parameters to fix or fit is not always trivial. The identifiability of the resultant system of equations is useful to consider, since it will likely impact parameter uncertainty.
Tabitha J. Manson, David L. Thomas, Matthias Günther, Lynette J. Tippett, Michael Dragunow, Catherine A. Morgan, Vinod Suresh   +6 more
wiley   +1 more source

Altered cerebral perfusion in Parkinson's disease patients with anxiety: an arterial spin labeling MRI study. [PDF]

Front Neurol
Li L, Song S, Hu Y, Luo Y, Wang L, Zhang P.   +5 more
europepmc   +1 more source

Automatic determination of glymphatic flow with the DTI‐ALPS‐index along the principal axis system in native imaging space corrects for head and fiber orientation

Magnetic Resonance in Medicine, Volume 95, Issue 2, Page 1110-1122, February 2026.
Abstract Purpose The aim of this work is to make the DTI along the perivascular space (DTI‐ALPS‐index) more robust with respect to region selection and the orientation of the head and fibers. We propose to address this matter by using the principal diffusion directions and an automated, atlas‐based region of interest (ROI) placement.
Ali Ajouz, Olav Jansen, Lynn Johann Frohwein, Svea Seehafer, Naomi Larsen, Jan‐Bernd Hövener   +5 more
wiley   +1 more source

Influence of Field Strength, Sex, and Age on Pseudo-Continuous Arterial Spin Labeling and T₁ Mapping in the Kidney. [PDF]

J Magn Reson Imaging
Garcia-Ruiz L, Echeverria-Chasco R, Aramendía-Vidaurreta V, Solis-Barquero SM, Garcia-Fernandez N, Mora-Gutiérrez JM, Vidorreta M, Bastarrika G, Fernández-Seara MA.   +8 more
europepmc   +1 more source

Diazirines Beyond Photoaffinity Labeling: A Comprehensive Overview of Applications in Biological Sciences, Materials Chemistry, and NMR‐Spectroscopy

Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.
Diazirines are three‐membered, nitrogen‐containing heterocycles that decompose under light or heat to generate carbenes. For the past two decades, they have served mainly as minimally invasive tags in photoaffinity labeling (PAL). More recently, their value as versatile carbene precursors has been recognized.
Dominik Schnalzer, Viktor Savic, Clemens Cziegler, Michael Schnürch, Marko D. Mihovilovic   +4 more
wiley   +2 more sources

Agreement between early-phase amyloid-PET and pulsed arterial spin labeling in a memory clinic cohort. [PDF]

J Mol Med (Berl)
Ribaldi F, Mendes AJ, Galazzo IB, Natale V, Mathoux G, Pievani M, Lovblad KO, Scheffler M, Frisoni GB, Garibotto V, Pizzini FB.   +10 more
europepmc   +1 more source

Transcranial Doppler ultrasound validation of BOLD‐fMRI cerebral blood flow relationship

Magnetic Resonance in Medicine, Volume 95, Issue 2, Page 939-950, February 2026.
Abstract Purpose A precise understanding of the interplay between cerebral blood flow (CBF) and blood oxygen level‐dependent (BOLD) fMRI signals is essential for advancing cerebrovascular research. Although calibrated BOLD approaches often rely on arterial spin labelling (ASL) to estimate CBF, alternative validation using transcranial Doppler ...
Genevieve Hayes, Joana Pinto, Sierra Sparks, Daniel P. Bulte   +3 more
wiley   +1 more source