Results 31 to 40 of about 13,431 (262)

Prematurity and brain perfusion: Arterial spin labeling MRI

NeuroImage: Clinical, 2017
Purpose: Abnormal brain perfusion is a critical mechanism in neonatal brain injury. The aim of the present study was to compare Cerebral Blood Flow (CBF) evaluated with ASL MRI in three groups of neonates: preterms without brain lesions on MRI (PN ...
Domenico Tortora, Peter Angelo Mattei, Riccardo Navarra, Valentina Panara, Rita Salomone, Andrea Rossi, John A. Detre, Massimo Caulo   +7 more
doaj   +1 more source

A Beginner's Guide to Arterial Spin Labeling (ASL) Image Processing

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, Jan Petr, Jan Petr, Mathijs B. J. Dijsselhof, Mathijs B. J. Dijsselhof, Beatriz Padrela, Beatriz Padrela, Maurice Pasternak, Sudipto Dolui, Lina Jarutyte, Nandor Pinter, Nandor Pinter, Nandor Pinter, Luis Hernandez-Garcia, Andrew Jahn, Joost P. A. Kuijer, Frederik Barkhof, Frederik Barkhof, Frederik Barkhof, Henk J. M. M. Mutsaerts, Henk J. M. M. Mutsaerts, Henk J. M. M. Mutsaerts, Henk J. M. M. Mutsaerts, Vera C. Keil, Vera C. Keil, Vera C. Keil   +25 more
doaj   +1 more source

Effective treatment of severe stenosis of the carotid and coronary arteries: a case study

Journal of Cardiothoracic Surgery, 2023
It is considered acceptable to conservatively manage coronary artery bypass grafting patients with carotid artery disease without the need for preoperative corrective carotid revascularization.
Kayo Sugiyama, Fuminori Ato, Hirotaka Watanuki, Masato Tochii, Shigeru Miyachi, Katsuhiko Matsuyama   +5 more
doaj   +1 more source

Inter-vendor reproducibility of pseudo-continuous arterial spin labeling at 3 Tesla. [PDF]

PLoS ONE, 2014
PURPOSE:Prior to the implementation of arterial spin labeling (ASL) in clinical multi-center studies, it is important to establish its status quo inter-vendor reproducibility.
Henri J M M Mutsaerts, Rebecca M E Steketee, Dennis F R Heijtel, Joost P A Kuijer, Matthias J P van Osch, Charles B L M Majoie, Marion Smits, Aart J Nederveen   +7 more
doaj   +1 more source

Quantifying CBF with arterial spin labeling [PDF]

Journal of Magnetic Resonance Imaging, 2005
AbstractThe basic principles of measuring cerebral blood flow (CBF) using arterial spin labeling (ASL) are reviewed. The measurement is modeled by treating the ASL method as a magnetic resonance imaging (MRI) version of a microsphere study, rather than a diffusible tracer study. This approach, particularly when applied to pulsed ASL (PASL) experiments,
openaire   +2 more sources

Arterial Spin Labeling: Experiência Inicial, Indicações Clínicas e Dificuldades

Acta Médica Portuguesa, 2012
O arterial spin labeling (ASL) é uma técnica de perfusão por ressonância magnética (RM) que usa os protões das moléculas de água do sangue arterial como marcador endógeno.
Angelo Carneiro, Sofia Pina, Bruno Moreira   +2 more
doaj   +1 more source

Imaging clinically relevant pain states using arterial spin labeling

PAIN Reports, 2019
. Arterial spin labeling (ASL) is a perfusion-based functional magnetic resonance imaging technique that uses water in arterial blood as a freely diffusible tracer to measure regional cerebral blood flow noninvasively.
Marco Luciano Loggia, Andrew Reilly Segerdahl, Matthew Alexander Howard, Irene Tracey   +3 more
doaj   +1 more source

Arterial spin labeling of nasopharyngeal carcinoma shows early therapy response

Insights into Imaging, 2022
Objective This study aimed to determine the value of arterial spin labeling (ASL) perfusion imaging in assessing the early efficacy of chemoradiotherapy for nasopharyngeal carcinoma (NPC).
Jun Liu, Juan Zhu, Yaxian Wang, Fei Wang, Hualin Yang, Nan Wang, Qingyun Chu, Qing Yang   +7 more
doaj   +1 more source

Brain Tumor Vascularity Estimation by Arterial Spin Label Perfusion MRI—A Preoperative Tool for Patient Prognostication

Indian Journal of Neurosurgery, 2023
Introduction Brain tumors remain a significant cause of morbidity and mortality around the globe. Preoperative estimation of tumor vascularity is of great significance for a neurosurgeon. Aim of our study was to correlate tumor blood flow (TBF)
Nidhi Rai, Rupi Jamwal, Bhanu Pratap Singh, Jyoti Gupta, K. B. Shankar, Sufiyan Zaheer   +5 more
doaj   +1 more source

Measuring the labeling efficiency of pseudocontinuous arterial spin labeling

Magnetic Resonance in Medicine, 2016
PurposeOptimization and validation of a sequence for measuring the labeling efficiency of pseudocontinuous arterial spin labeling (pCASL) perfusion MRI.MethodsThe proposed sequence consists of a labeling module and a single slice Look‐Locker echo planar imaging readout.
Chen, Z.S., Zhang, X.X., Yuan, C., Zhao, X.H., Osch, M.J.P. van   +4 more
openaire   +3 more sources