Magnetic Resonance in Medical Sciences 
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This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.Evaluating T1, T2 Relaxation, and Proton Density in Normal Brain Using Synthetic MRI with Fast Imaging Protocol
Magn Reson Med Sci. 2023 Sep 8. doi: 10.2463/mrms.tn.2022-0161. Online ahead of print.ABSTRACTSynthetic MRI is being increasingly used for the quantification of brain longitudinal relaxation time (T1), transverse relaxation time (T2), and proton density (PD) values. However, the effect of fast imaging protocols on these quantitative values has not been fully estimated. The purpose of this study was to investigate the effect of fast scan parameters on T1, T2, and PD measured with a multi-dynamic multi-echo (MDME) sequence of normal brain at 3.0T. Thirty-four volunteers were scanned using 3 MDME sequences with different scan...
Source: Magnetic Resonance in Medical Sciences - September 10, 2023 Category: Radiology Authors: Zuofeng Zheng Yawen Liu Hongxia Yin Pengling Ren Tingting Zhang Jiafei Yang Zhenchang Wang Source Type: research
Nonlinear Gradient Field Mapping Using a Spherical Grid Phantom for 3 and 7 Tesla MR Imaging Systems Equipped with High-performance Gradient Coils
In this study, we measured the spatial nonlinearity of the magnetic field generated by the gradient coils of two MRI systems with high-performance gradient coils. The nonlinearity of the gradient fields was measured using 3D gradient echo sequences and a spherical phantom with a built-in lattice structure. The spatial variation of the gradient field was approximated to the 3rd order polynomials. The coefficients of the polynomials were calculated using the steepest descent method. The geometric distortion of the acquired 3D MR images was corrected using the polynomials and compared with the 3D images corrected using the ha...
Source: Magnetic Resonance in Medical Sciences - September 10, 2023 Category: Radiology Authors: Ryoichi Kose Katsumi Kose Koji Fujimoto Tomohisa Okada Daiki Tamada Utaroh Motosugi Source Type: research
Evaluating T1, T2 Relaxation, and Proton Density in Normal Brain Using Synthetic MRI with Fast Imaging Protocol
Magn Reson Med Sci. 2023 Sep 8. doi: 10.2463/mrms.tn.2022-0161. Online ahead of print.ABSTRACTSynthetic MRI is being increasingly used for the quantification of brain longitudinal relaxation time (T1), transverse relaxation time (T2), and proton density (PD) values. However, the effect of fast imaging protocols on these quantitative values has not been fully estimated. The purpose of this study was to investigate the effect of fast scan parameters on T1, T2, and PD measured with a multi-dynamic multi-echo (MDME) sequence of normal brain at 3.0T. Thirty-four volunteers were scanned using 3 MDME sequences with different scan...
Source: Magnetic Resonance in Medical Sciences - September 10, 2023 Category: Radiology Authors: Zuofeng Zheng Yawen Liu Hongxia Yin Pengling Ren Tingting Zhang Jiafei Yang Zhenchang Wang Source Type: research
Nonlinear Gradient Field Mapping Using a Spherical Grid Phantom for 3 and 7 Tesla MR Imaging Systems Equipped with High-performance Gradient Coils
In this study, we measured the spatial nonlinearity of the magnetic field generated by the gradient coils of two MRI systems with high-performance gradient coils. The nonlinearity of the gradient fields was measured using 3D gradient echo sequences and a spherical phantom with a built-in lattice structure. The spatial variation of the gradient field was approximated to the 3rd order polynomials. The coefficients of the polynomials were calculated using the steepest descent method. The geometric distortion of the acquired 3D MR images was corrected using the polynomials and compared with the 3D images corrected using the ha...
Source: Magnetic Resonance in Medical Sciences - September 10, 2023 Category: Radiology Authors: Ryoichi Kose Katsumi Kose Koji Fujimoto Tomohisa Okada Daiki Tamada Utaroh Motosugi Source Type: research
Evaluating T1, T2 Relaxation, and Proton Density in Normal Brain Using Synthetic MRI with Fast Imaging Protocol
Magn Reson Med Sci. 2023 Sep 8. doi: 10.2463/mrms.tn.2022-0161. Online ahead of print.ABSTRACTSynthetic MRI is being increasingly used for the quantification of brain longitudinal relaxation time (T1), transverse relaxation time (T2), and proton density (PD) values. However, the effect of fast imaging protocols on these quantitative values has not been fully estimated. The purpose of this study was to investigate the effect of fast scan parameters on T1, T2, and PD measured with a multi-dynamic multi-echo (MDME) sequence of normal brain at 3.0T. Thirty-four volunteers were scanned using 3 MDME sequences with different scan...
Source: Magnetic Resonance in Medical Sciences - September 10, 2023 Category: Radiology Authors: Zuofeng Zheng Yawen Liu Hongxia Yin Pengling Ren Tingting Zhang Jiafei Yang Zhenchang Wang Source Type: research
