Results 1 to 10 of about 879,507 (303)

Magnetic resonance angiography

Medical Journal of Australia, 1993
To outline the physical principles of magnetic resonance angiography (MRA), major current MRA techniques, clinical indications and some of the limitations of MRA. The rapidly changing nature of MRA techniques is stressed.The MRA literature for the last eight years is reviewed with particular attention to the changing clinical role of MRA.
Ronald L. Ragland, Nicholas D. Gelber
  +10 more sources

Pulmonary magnetic resonance angiography [PDF]

Journal of Magnetic Resonance Imaging, 1999
Early attempts to image the pulmonary vasculature with spin-echo magnetic resonance (MR) imaging were hampered by severe image degradation related to respiratory and cardiac pulsation artifact, susceptibility at interfaces between lung parenchyma and vessel wall, and poor contrast between flowing blood and intravascular filling defects of emboli.
Martin R. Prince, Lars Johansson, James F. M. Meaney, Håkan Ahlström   +3 more
openaire   +5 more sources

3D whole-heart isotropic sub-millimeter resolution coronary magnetic resonance angiography with non-rigid motion-compensated PROST

Journal of Cardiovascular Magnetic Resonance, 2020
Background To enable free-breathing whole-heart sub-millimeter resolution coronary magnetic resonance angiography (CMRA) in a clinically feasible scan time by combining low-rank patch-based undersampled reconstruction (3D-PROST) with a highly accelerated
A. Bustin, I. Rashid, G. Cruz, R. Hajhosseiny, T. Correia, R. Neji, R. Rajani, T. Ismail, R. Botnar, C. Prieto   +9 more
semanticscholar   +1 more source

Non-contrast coronary magnetic resonance angiography: current frontiers and future horizons

Magnetic Resonance Materials in Physics, Biology and Medicine, 2020
Coronary magnetic resonance angiography (coronary MRA) is advantageous in its ability to assess coronary artery morphology and function without ionizing radiation or contrast media.
Y. Kato, B. Ambale-Venkatesh, Y. Kassai, L. Kasuboski, J. Schuijf, K. Kapoor, S. Caruthers, J. Lima   +7 more
semanticscholar   +1 more source

Magnetic Resonance Angiography [PDF]

Current Protocols in Magnetic Resonance Imaging, 2002
AbstractThe “flow compensation” of moving spins is necessary to visualize blood in MR imaging. This unit discusses the effects of blood flow in detail, particularly in regard to obtaining an accurate measurement of the blood vessel lumen (the interior dimensions of the vessel).
Cheng, Yu‐chung, Haacke, E. Mark
openaire   +5 more sources

Meningeal contribution to migraine pain: a magnetic resonance angiography study

Brain : a journal of neurology, 2018
The origin of migraine pain is unknown but possibly implicates the dura mater, which is pain sensitive in proximity to the meningeal arteries.
Sabrina Khan, Faisal Mohammad Amin, Casper Emil Christensen, Hashmat Ghanizada, Samaira Younis, Anne Christine Rye Olinger, P. D. de Koning, H. Larsson, M. Ashina   +8 more
semanticscholar   +1 more source

Vascular magnetic resonance angiography techniques.

Cardiovascular Diagnosis and Therapy, 2019
Magnetic resonance angiography (MRA) denotes a unique option for the evaluation of peripheral vasculature due to its noninvasive nature, lack of ionizing radiation exposure, potential for non-contrast examination, and ability for generating volumetric ...
A. Kuo, P. Nagpal, B. Ghoshhajra, S. Hedgire   +3 more
semanticscholar   +1 more source

Meta-analysis of computed tomography angiography versus magnetic resonance angiography for intracranial aneurysm

Medicine, 2018
Background: Whether the diagnosis value of computed tomography angiography (CTA) for intracranial aneurysm is in accordance with magnetic resonance angiography (MRA) remains inconclusive.
Xiaodan Chen, Yun Liu, Huazhang Tong, Yonghai Dong, Dongyang Ma, Lei Xu, Cheng Yang   +6 more
semanticscholar   +1 more source

The diagnostic value of non-contrast enhanced quiescent interval single shot (QISS) magnetic resonance angiography at 3T for lower extremity peripheral arterial disease, in comparison to CT angiography

Journal of Cardiovascular Magnetic Resonance, 2016
BackgroundThe high incidence of renal insufficiency in patients with Peripheral Arterial Disease raises the concern for nephrogenic systemic fibrosis (NSF) with respect to contrast enhanced MRA.
Gang Wu, Jun Yang, Tianjing Zhang, J. Morelli, S. Giri, Xiaoming Li, W. Tang   +6 more
semanticscholar   +1 more source

Arterial Obstruction on Computed Tomographic or Magnetic Resonance Angiography and Response to Intravenous Thrombolytics in Ischemic Stroke

Stroke, 2016
Background and Purpose— Computed tomographic angiography and magnetic resonance angiography are used increasingly to assess arterial patency in patients with ischemic stroke.
Grant Mair, R. von Kummer, A. Adami, P. White, M. Adams, B. Yan, A. Demchuk, A. Farrall, R. Sellar, E. Sakka, Jeb Palmer, D. Perry, R. Lindley, P. Sandercock, J. Wardlaw   +14 more
semanticscholar   +1 more source