Results 11 to 20 of about 20,745 (206)

Fetal cardiac cine magnetic resonance imaging in utero [PDF]

Scientific Reports, 2017
Abstract Fast magnetic resonance imaging (MRI) led to the emergence of ‘cine MRI’ techniques, which enable the visualization of the beating heart and the assessment of cardiac morphology and dynamics. However, established cine MRI methods are not suitable for fetal heart imaging in utero
Chaptinel, J., Yerly, J., Mivelaz, Y., Prsa, M., Alamo, L., Vial, Y., Berchier, G., Rohner, C., Gudinchet, F., Stuber, M.   +9 more
openaire   +4 more sources

Real-time visualization of joint cavitation. [PDF]

PLoS ONE, 2015
Cracking sounds emitted from human synovial joints have been attributed historically to the sudden collapse of a cavitation bubble formed as articular surfaces are separated.
Gregory N Kawchuk, Jerome Fryer, Jacob L Jaremko, Hongbo Zeng, Lindsay Rowe, Richard Thompson   +5 more
doaj   +1 more source

A Technique for Generating Volumetric Cine-Magnetic Resonance Imaging [PDF]

International Journal of Radiation Oncology*Biology*Physics, 2016
The purpose of this study was to develop a techique to generate on-board volumetric cine-magnetic resonance imaging (VC-MRI) using patient prior images, motion modeling, and on-board 2-dimensional cine MRI.One phase of a 4-dimensional MRI acquired during patient simulation is used as patient prior images. Three major respiratory deformation patterns of
Wendy, Harris, Lei, Ren, Jing, Cai, You, Zhang, Zheng, Chang, Fang-Fang, Yin   +5 more
openaire   +2 more sources

Sophisticated Study of Time, Frequency and Statistical Analysis for Gradient-Switching-Induced Potentials during MRI

Bioengineering, 2023
Magnetic resonance imaging (MRI) is a standard procedure in medical imaging, on a par with echography and tomodensitometry. In contrast to radiological procedures, no harmful radiation is produced.
Karim Bouzrara, Odette Fokapu, Ahmed Fakhfakh, Faouzi Derbel   +3 more
doaj   +1 more source

Uterine anatomy and function on cine magnetic resonance imaging [PDF]

Reproductive Medicine and Biology, 2016
AbstractThe female reproductive organ undergoes dynamic morphological changes under the influence of hormonal stimuli, and particularly those mediated by estrogen and progesterone. The uterus changes both its morphological appearance and its functional movements in function of these influences.
Aki, Kido, Kaori, Togashi
openaire   +2 more sources

Quantification of Esophageal Tumor Motion on Cine-Magnetic Resonance Imaging [PDF]

International Journal of Radiation Oncology*Biology*Physics, 2014
To quantify the movement of esophageal tumors noninvasively on cine-magnetic resonance imaging (MRI) by use of a semiautomatic method to visualize tumor movement directly throughout multiple breathing cycles.Thirty-six patients with esophageal tumors underwent MRI. Tumors were located in the upper (8), middle (7), and lower (21) esophagus.
Lever, F.M., Lips, I.M., Crijns, S.P., Reerink, O., van Lier, A.L., Moerland, M.A., van Vulpen, M., Meijer, G.J., Meijer, G.J.   +8 more
openaire   +4 more sources

The Application and Research Progress of Cardiac Magnetic Resonance in the Assessment of Right Ventricular-Pulmonary Arterial Coupling [PDF]

Advanced Ultrasound in Diagnosis and Therapy
Right ventricular-pulmonary arterial coupling refers to the interaction and functional matching between the right ventricle and the pulmonary artery. When the coupling is disrupted, it can lead to a series of cardiovascular diseases, such as pulmonary ...
Ya Chen, MS, Xinqi Wang, MS, Anni Chen, MS, Zhenyi Li, MS, Lan Yang, MS, Zhaojun Li, MD, Lin Jin, MD, Xifu Wang, MD
doaj   +1 more source

Super‐Resolution Cine Image Enhancement for Fetal Cardiac Magnetic Resonance Imaging [PDF]

Journal of Magnetic Resonance Imaging, 2021
BackgroundFetal cardiac magnetic resonance imaging (MRI) improves the diagnosis of congenital heart defects, but is sensitive to fetal motion due to long image acquisition time. This may be overcome with faster image acquisition with low resolution, followed by image enhancement to provide clinically useful images.PurposeTo combine phase‐encoding ...
Klas Berggren, Daniel Ryd, Einar Heiberg, Anthony H. Aletras, Erik Hedström   +4 more
openaire   +2 more sources

Low-field cine magnetic resonance imaging

The British Journal of Radiology, 1990
The spin warp technique (Edelstein et al, 1980) is now the most commonly used method of image formation for nuclear magnetic resonance (NMR) studies. This technique combines frequency and phase encoding of positional information onto the signal to allow subsequent image reconstruction.
R A, Jones, M J, Metcalfe, T W, Redpath, F W, Smith, S, Walton   +4 more
openaire   +2 more sources

Cardiovascular magnetic resonance at 3.0T: Current state of the art

Journal of Cardiovascular Magnetic Resonance, 2010
There are advantages to conducting cardiovascular magnetic resonance (CMR) studies at a field strength of 3.0 Telsa, including the increase in bulk magnetization, the increase in frequency separation of off-resonance spins, and the increase in T1 of many
Gharib Ahmed M, Sharma Puneet, Delfino Jana G, Oshinski John N, Pettigrew Roderic I   +4 more
doaj   +1 more source