Results 31 to 40 of about 423 (47)

The ultrastructural and morphological characteristics of the anterior cruciate ligament of the pig: a study using 7.0-Tesla diffusion tensor imaging

Journal of International Medical Research, 2022
Objective Diffusion tensor imaging research on the anterior cruciate ligament (ACL) is limited, and no study has revealed the ACL fibrous microstructure by 7.0-Tesla magnetic resonance imaging.
Tian You, Fujia Jiao, Wentao Zhang, Qingjun Yang, Wenqian Lu, Yong Luo   +5 more
doaj   +1 more source

Assessment of the imaging quality and heterogeneous predictive value of readout-segmented echo planar imaging for diffusion-weighted rectal MRI

Frontiers in Oncology
ObjectivesTo qualitatively and quantitatively compare the image quality of readout-segmented echo planar imaging (rs-EPI) and single-shot echo planar imaging (ss-EPI) for diffusion-weighted (DWI) rectal MRI, as well as the heterogeneous predictive value ...
Mingrui Song, Yichuan Liang, Huiying Wang, Lei Shi, Quanliang Mao, Haonan Zhao, Zhehao Zhang, Aijing Li, Yuning Pan   +8 more
doaj   +1 more source

Sub-Millimeter T2 Weighted fMRI at 7 T: Comparison of 3D-GRASE and 2D SE-EPI

Frontiers in Neuroscience, 2015
Functional magnetic resonance imaging (fMRI) allows studying human brain function non-invasively up to the spatial resolution of cortical columns and layers.
Valentin G. Kemper, Federico eDe Martino, Federico eDe Martino, An T. Vu, Benedikt A. Poser, David A. Feinberg, David A. Feinberg, Rainer eGoebel, Essa eYacoub   +8 more
doaj   +1 more source

Functional mapping of the human visual cortex with intravoxel incoherent motion MRI.

PLoS ONE, 2015
Functional imaging with intravoxel incoherent motion (IVIM) magnetic resonance imaging (MRI) is demonstrated. Images were acquired at 3 Tesla using a standard Stejskal-Tanner diffusion-weighted echo-planar imaging sequence with multiple b-values. Cerebro-
Christian Federau, Kieran O'Brien, Adrien Birbaumer, Reto Meuli, Patric Hagmann, Philippe Maeder   +5 more
doaj   +1 more source

Assessment of spectral ghost artifacts in echo-planar spectroscopic micro-imaging with flyback readout

Scientific Reports
In this work, echo-planar spectroscopic imaging (EPSI) with flyback readout gradient-echo train was implemented in a preclinical MR scanner. The aim of this study is to visualize and quantify the ghost spectral lines produced by two, three and four ...
Jan Weis, Magor Babos, Sergio Estrada, Ram Kumar Selvaraju   +3 more
doaj   +1 more source

Diffusion-weighted magnetic resonance imaging in bladder cancer: comparison of readout-segmented and single-shot EPI techniques

Cancer Imaging, 2019
Background To evaluate whether readout-segment echo-planar imaging (RS-EPI) can provide better image quality in assessing bladder cancer than single-shot echo-planar imaging (SS-EPI) and to compare quantitative imaging parameters derived from both ...
Haihu Chen, Luguang Chen, Fang Liu, Jianping Lu, Chuanliang Xu, Li Wang   +5 more
doaj   +1 more source

Beyond the otoscope: an imaging review of congenital cholesteatoma

Insights into Imaging
Congenital cholesteatoma (CC) is a non-neoplastic lesion of keratin debris lined by epithelium found in the temporal bone. It is the lesser-known sibling of the acquired cholesteatoma and may be classified as congenital middle ear cholesteatoma and ...
Guillaume Vangrinsven, Anja Bernaerts, Filip Deckers, Joost van Dinther, Andrzej Zarowski, Bert De Foer   +5 more
doaj   +1 more source

Validation of echo planar imaging based diffusion-weighted magnetic resonance imaging on a 0.35 T MR-Linac

Physics and Imaging in Radiation Oncology
Background and Purpose: The feasibility of acquiring diffusion-weighted imaging (DWI) images on an MR-Linac for quantitative response assessment during radiotherapy was explored. DWI data obtained with a Spin Echo Echo Planar Imaging sequence adapted for
Philipp Wallimann, Marco Piccirelli, Sylwia Nowakowska, Tess Armstrong, Michael Mayinger, Andreas Boss, Andrea Bink, Matthias Guckenberger, Stephanie Tanadini-Lang, Nicolaus Andratschke, Bertrand Pouymayou   +10 more
doaj   +1 more source

Ghost peaks simulation and reduction in high-resolution echo-planar spectroscopic imaging with flyback readout

Scientific Reports
The undesirable aspect of echo-planar spectroscopic imaging (EPSI) is the occurrence of Nyquist ghost spectral lines. This phenomenon reduces the intensity of each true spectral line due to energy transfer into one or more ghost peaks.
Jan Weis, Magor Babos, Ram Kumar Selvaraju   +2 more
doaj   +1 more source

Quantification of breast biopsy clip marker artifact on routine breast MRI sequences: a phantom study

European Radiology Experimental
Background To investigate the artifact sizes of four common breast clip-markers on a standard breast magnetic resonance imaging (MRI) protocol in an in vitro phantom model.
Christian Kremser, Leonhard Gruber, Matthias Dietzel, Birgit Amort, Wolfram Santner, Martin Daniaux   +5 more
doaj   +1 more source