Diffusion kurtosis imaging of a human nasopharyngeal carcinoma xenograft model: Initial experience with pathological correlation
The aim of this study was to investigate the relationship between diffusion kurtosis imaging (DKI)-related parameters and pathological measures using human nasopharyngeal carcinoma (NPC) xenografts in a nude mouse model. (Source: Magnetic Resonance Imaging)
Source: Magnetic Resonance Imaging - December 5, 2017 Category: Radiology Authors: Jing Zhong, Peng Shi, Yunbin Chen, Rongfang Huang, Youping Xiao, Xiang Zheng, Dechun Zheng, Li Peng Tags: Original contribution Source Type: research
The potential role of IDEAL MRI for identification of lipids and hemorrhage in carotid artery plaques
Hemorrhage and lipid deposits contribute to instability in atherosclerotic plaques. Unstable carotid artery plaques can lead to cerebral ischemic events. While MRI studies have shown the ability to identify plaque components, the identification of hemorrhage and lipids has proven to be problematic. The purpose of this study was to quantitatively evaluate the potential of the MRI fat/water separation method known as iterative decomposition of water and fat with echo asymmetry and least squares estimation (IDEAL) to complement and improve existing methods for the identification of hemorrhage and lipids in carotid artery plaq...
Source: Magnetic Resonance Imaging - December 4, 2017 Category: Radiology Authors: Faisal Khosa, Rachel E. Clough, Xiaoen Wang, Ananth J. Madhuranthakam, Robert L. Greenman Tags: Technical note Source Type: research
Evaluation of pancreatic exocrine insufficiency by cine-dynamic MRCP using spatially selective inversion-recovery (IR) pulse: Correlation with severity of chronic pancreatitis based on morphological changes of pancreatic duct
To evaluate the correlation between the pancreatic exocrine insufficiency estimated by cine-dynamic MRCP using spatially selective IR pulse and the severity stages (modified Cambridge classification) based on morphological changes of the pancreatic duct in patients with suspected chronic pancreatitis. (Source: Magnetic Resonance Imaging)
Source: Magnetic Resonance Imaging - December 4, 2017 Category: Radiology Authors: Kazuya Yasokawa, Katsuyoshi Ito, Akihiko Kanki, Akira Yamamoto, Teruyuki Torigoe, Tomohiro Sato, Tsutomu Tamada Source Type: research
Effects of proximity and noise level of phased array coil elements on overall signal-to-noise in parallel MR spectroscopy
Parallel imaging using phased array coils facilitates accelerated magnetic resonance imaging (MRI) and spectroscopy (MRS). Parallel data reconstruction requires the combination of data from individual coil elements, but limited combination algorithms currently exist for higher-order phased arrays and MRS data. Here, we present a systematic framework for identifying coil proximity-related signal inhomogeneities and noise levels in phased array coils that may affect sensitivity of parallel MRS. Single-voxel MRS was acquired in nine voxel positions in a brain spectroscopy phantom on a 3T whole-body MR scanner using commercial...
Source: Magnetic Resonance Imaging - December 4, 2017 Category: Radiology Authors: Candace C. Fleischer, Xiaodong Zhong, Hui Mao Tags: Technical note Source Type: research
The potential role of IDEAL MRI for identification of lipids and hemorrhage in carotid artery plaques
Hemorrhage and lipid deposits contribute to instability in atherosclerotic plaques. Unstable carotid artery plaques can lead to cerebral ischemic events. While MRI studies have shown the ability to identify plaque components, the identification of hemorrhage and lipids has proven to be problematic. The purpose of this study was to quantitatively evaluate the potential of the MRI fat/water separation method known as iterative decomposition of water and fat with echo asymmetry and least squares estimation (IDEAL) to complement and improve existing methods for the identification of hemorrhage and lipids in carotid artery plaq...
Source: Magnetic Resonance Imaging - December 4, 2017 Category: Radiology Authors: Faisal Khosa, Rachel E. Clough, Xiaoen Wang, Ananth J. Madhuranthakam, Robert L. Greenman Tags: Technical note Source Type: research
Evaluation of pancreatic exocrine insufficiency by cine-dynamic MRCP using spatially selective inversion-recovery (IR) pulse: Correlation with severity of chronic pancreatitis based on morphological changes of pancreatic duct
To evaluate the correlation between the pancreatic exocrine insufficiency estimated by cine-dynamic MRCP using spatially selective IR pulse and the severity stages (modified Cambridge classification) based on morphological changes of the pancreatic duct in patients with suspected chronic pancreatitis. (Source: Magnetic Resonance Imaging)
Source: Magnetic Resonance Imaging - December 4, 2017 Category: Radiology Authors: Kazuya Yasokawa, Katsuyoshi Ito, Akihiko Kanki, Akira Yamamoto, Teruyuki Torigoe, Tomohiro Sato, Tsutomu Tamada Source Type: research
Fixed volume particle trace emission for the analysis of left atrial blood flow using 4D Flow MRI
4D Flow MRI has been used to quantify normal and deranged left ventricular blood flow characteristics on the basis of functionally distinct flow components. However, the application of this technique to the atria is challenging due to the presence of continuous inflow. This continuous inflow necessitates plane-based emission of particle traces from the inlet veins, leading to particles that represents different amounts of blood, and related quantification errors. The purpose of this study was to develop a novel fixed-volume approach for particle tracing and employ this method to develop quantitative analysis of 4D blood fl...
Source: Magnetic Resonance Imaging - December 4, 2017 Category: Radiology Authors: Stephen Gaeta, Petter Dyverfeldt, Jonatan Eriksson, Carl-Johan Carlh äll, Tino Ebbers, Ann F. Bolger Tags: Technical note Source Type: research
Cover 2 -- Editorial Board
(Source: Magnetic Resonance Imaging)
Source: Magnetic Resonance Imaging - November 26, 2017 Category: Radiology Source Type: research
fm iii and iv -- Contents/Barcode
(Source: Magnetic Resonance Imaging)
Source: Magnetic Resonance Imaging - November 26, 2017 Category: Radiology Source Type: research
Evaluation of Diffusion Weighted Imaging in the Context of Multi-Parametric MRI of the Prostate in the assessment of suspected low volume prostatic carcinoma
Data from a multi-parameteric MRI study of patients with possible early-stage prostate cancer was assessed with a view to creating an efficient clinical protocol. Based on a correlation analysis suggesting that diffusion-weighted imaging (DWI) scores are more strongly correlated with overall PIRADS scores than other modalities such as dynamic contrast enhanced imaging or spectroscopy, we investigate the combination of T2-weighted imaging (T2w) and DWI as a potential diagnostic tool for prostate cancer detection, staging and guided biopsies. (Source: Magnetic Resonance Imaging)
Source: Magnetic Resonance Imaging - November 25, 2017 Category: Radiology Authors: Ioannis Papadopoulos, Jonathan Phillips, Rhodri Evans, Neil Fenn, Sophie Shermer Source Type: research
Comparison of fat suppression capability for chest MR imaging with Dixon, SPAIR and STIR techniques at 3-Tesla MR system
To directly compare fat suppression efficacy of Dixon, spectral attenuated inversion recovery (SPAIR) and short tau inversion recovery (STIR) techniques for a 3T MR system. (Source: Magnetic Resonance Imaging)
Source: Magnetic Resonance Imaging - November 24, 2017 Category: Radiology Authors: Yuji Kishida, Hisanobu Koyama, Shinichiro Seki, Takeshi Yoshikawa, Katsusuke Kyotani, Tomoyuki Okuaki, Kazuro Sugimura, Yoshiharu Ohno Tags: Original contribution Source Type: research
Fully automated contour detection of the ascending aorta in cardiac 2D phase-contrast MRI
In this study we proposed a fully automated method for localizing and segmenting the ascending aortic lumen with phase-contrast magnetic resonance imaging (PC-MRI). (Source: Magnetic Resonance Imaging)
Source: Magnetic Resonance Imaging - November 24, 2017 Category: Radiology Authors: Marina Codari, Marco Scarabello, Francesco Secchi, Chiarella Sforza, Giuseppe Baselli, Francesco Sardanelli Tags: Technical note Source Type: research
Histogram based analysis of lung perfusion of children after congenital diaphragmatic hernia repair
To investigate a histogram based approach to characterize the distribution of perfusion in the whole left and right lung by descriptive statistics and to show how histograms could be used to visually explore perfusion defects in two year old children after Congenital Diaphragmatic Hernia (CDH) repair. (Source: Magnetic Resonance Imaging)
Source: Magnetic Resonance Imaging - November 23, 2017 Category: Radiology Authors: Nora Kassner, Meike Weis, Katrin Zahn, Thomas Schaible, Stefan O. Schoenberg, Lothar R. Schad, Frank G. Z öllner Tags: Original contribution Source Type: research
ZTE MRI in high magnetic field as a time effective 3D imaging technique for monitoring water ingress in porous rocks at sub-millimetre resolution
Zero echo time magnetic resonance imaging (ZTE MRI) at 9.4T was used to assess the local distribution of water in dolomite rocks under different saturation conditions. The results were compared with the industry standard Single Point Imaging (SPI) at 0.6T. 3D maps of the local amount of water saturating heterogeneous rock were obtained from the imaging data, and correlated with the corresponding structural images from high resolution micro-CT ( μCT). The method can be applicable in the investigation of spatial kinetics of water saturation processes in porous, heterogeneous rocks where imaging methods based on spin echo, s...
Source: Magnetic Resonance Imaging - November 23, 2017 Category: Radiology Authors: W ładysław P. Węglarz, Artur Krzyżak, Grzegorz Machowski, Michał Stefaniuk Source Type: research
Histogram based analysis of lung perfusion of children after congenital diaphragmatic hernia repair
To investigate a histogram based approach to characterize the distribution of perfusion in the whole left and right lung by descriptive statistics and to show how histograms could be used to visually explore perfusion defects in two year old children after Congenital Diaphragmatic Hernia (CDH) repair. (Source: Magnetic Resonance Imaging)
Source: Magnetic Resonance Imaging - November 23, 2017 Category: Radiology Authors: Nora Kassner, Meike Weis, Katrin Zahn, Thomas Schaible, Stefan O. Schoenberg, Lothar R. Schad, Frank G. Z öllner Tags: Original contribution Source Type: research
