Tailored and universal parallel transmit broadband pulses for homogeneous 3D excitation of the human heart at 7T
CONCLUSION: Broadband TP and UP can be used for homogeneous excitation of the heart volume across a 1300 Hz frequency range, including the water and the main six fat peaks, or with longer pulse durations and higher FAs for a smaller transmit bandwidth. Moreover, despite large inter-volunteer variations, broadband UP can be used for calibration-free 3D heart FA homogenization in time-critical situations.PMID:38440957 | DOI:10.1002/mrm.30072 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 5, 2024 Category: Radiology Authors: Christoph Stefan Aigner Sebastian Dietrich-Conzelmann Max Lutz Felix Kr üger Sebastian Schmitter Source Type: research
Age-related differences in macromolecular resonances observed in ultra-short-TE STEAM MR spectra at 7T
CONCLUSIONS: Our findings provide insights into age-related differences in macromolecular contents and strengthen the necessity of using age-matched measured macromolecules during quantification.PMID:38441257 | DOI:10.1002/mrm.30061 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 5, 2024 Category: Radiology Authors: Guglielmo Genovese Melissa Terpstra Pavel Filip Silvia Mangia J Riley McCarten Laura S Hemmy Ma łgorzata Marjańska Source Type: research
GPU-accelerated Bloch simulations and MR-STAT reconstructions using the Julia programming language
CONCLUSION: By combining the proposed Bloch simulation toolbox and the partially matrix-free reconstruction algorithm, 2D MR-STAT reconstructions can be performed in the order of one minute on a modern GPU card. The Bloch simulation toolbox can be utilized for other quantitative MRI techniques as well, for example for online dictionary generation for MR Fingerprinting.PMID:38441315 | DOI:10.1002/mrm.30074 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 5, 2024 Category: Radiology Authors: Oscar van der Heide Cornelis A T van den Berg Alessandro Sbrizzi Source Type: research
Motion-compensated diffusion encoding in multi-shot human brain acquisitions: Insights using high-performance gradients
CONCLUSION: Second-order motion-compensated diffusion encoding mitigates and simplifies shot-to-shot phase variability in the human brain, rendering the multi-shot acquisition strategy an effective means to circumvent limitations of retrospective phase correction methods.PMID:38441339 | DOI:10.1002/mrm.30069 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 5, 2024 Category: Radiology Authors: Eric Seth Michael Franciszek Hennel Klaas Paul Pruessmann Source Type: research
Boosting reproducible research practices with the Repeat It With Me: Reproducibility Team Challenge
Magn Reson Med. 2024 Mar 5. doi: 10.1002/mrm.30041. Online ahead of print.NO ABSTRACTPMID:38441403 | DOI:10.1002/mrm.30041 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 5, 2024 Category: Radiology Authors: Laura Bortolotti Sophie Schauman Maria Eugenia Caligiuri Source Type: research
Current methods for hyperpolarized [1- < sup > 13 < /sup > C]pyruvate MRI human studies
Magn Reson Med. 2024 Mar 5. doi: 10.1002/mrm.29875. Online ahead of print.ABSTRACTMRI with hyperpolarized (HP) 13 C agents, also known as HP 13 C MRI, can measure processes such as localized metabolism that is altered in numerous cancers, liver, heart, kidney diseases, and more. It has been translated into human studies during the past 10 years, with recent rapid growth in studies largely based on increasing availability of HP agent preparation methods suitable for use in humans. This paper aims to capture the current successful practices for HP MRI human studies with [1-13 C]pyruvate-by far the most commonly used agent, w...
Source: Magnetic Resonance in Medicine - March 5, 2024 Category: Radiology Authors: Peder E Z Larson Jenna M L Bernard James A Bankson Nikolaj B øgh Robert A Bok Albert P Chen Charles H Cunningham Jeremy W Gordon Jan-Bernd H övener Christoffer Laustsen Dirk Mayer Mary A McLean Franz Schilling James B Slater Jean-Luc Vanderheyden Cornel Source Type: research
A theoretical framework to investigate the effect of high permittivity materials in MRI using anatomy-mimicking cylinders
CONCLUSION: We show how HPM can filter out the modes that only contribute to the noise or RF power deposition, resulting in higher SNR or lower SAR, respectively. Our proposed framework provides physical insight on how to properly design HPM for MRI applications.PMID:38439745 | DOI:10.1002/mrm.30063 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 5, 2024 Category: Radiology Authors: Vincenzo Miranda Giuseppe Ruello Riccardo Lattanzi Source Type: research
Assessment of arterial pulsatility of cerebral perforating arteries using 7T high-resolution dual-VENC phase-contrast MRI
CONCLUSION: Dual-VENC PC-MRI is a reliable imaging method for the assessment of pulsatility of cerebral perforating arteries, which could be useful as a potential imaging biomarker of aging and cSVD.PMID:38440807 | DOI:10.1002/mrm.30073 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 5, 2024 Category: Radiology Authors: Jianing Tang Soroush Heidari Pahlavian Elizabeth Joe Maria Tereza Gamez Tianrui Zhao Samantha J Ma Jin Jin Steven Yong Cen Helena C Chui Lirong Yan Source Type: research
Using a deep learning prior for accelerating hyperpolarized < sup > 13 < /sup > C MRSI on synthetic cancer datasets
CONCLUSION: The proposed singular value decomposition + iterative deep learning model could be considered as a general framework that extended the application of deep learning MRI reconstruction to metabolic imaging. The morphology of tumors and metabolic images could be measured robustly in six times acceleration using our method.PMID:38440832 | DOI:10.1002/mrm.30053 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 5, 2024 Category: Radiology Authors: Zuojun Wang Guanxiong Luo Ye Li Peng Cao Source Type: research
Submillimeter balanced SSFP BOLD-functional MRI accelerated with 3D stack-of-spirals at 9.4 T
CONCLUSIONS: Three-dimensional stack-of-spirals enables passband balanced SSFP functional imaging at a much higher spatial and temporal scale, compared with conventional spoiled gradient-echo train sequences.PMID:38440956 | DOI:10.1002/mrm.30064 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 5, 2024 Category: Radiology Authors: Praveen Iyyappan Valsala Marten Veldmann Dario Bosch Klaus Scheffler Philipp Ehses Source Type: research
Tailored and universal parallel transmit broadband pulses for homogeneous 3D excitation of the human heart at 7T
CONCLUSION: Broadband TP and UP can be used for homogeneous excitation of the heart volume across a 1300 Hz frequency range, including the water and the main six fat peaks, or with longer pulse durations and higher FAs for a smaller transmit bandwidth. Moreover, despite large inter-volunteer variations, broadband UP can be used for calibration-free 3D heart FA homogenization in time-critical situations.PMID:38440957 | DOI:10.1002/mrm.30072 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 5, 2024 Category: Radiology Authors: Christoph Stefan Aigner Sebastian Dietrich-Conzelmann Max Lutz Felix Kr üger Sebastian Schmitter Source Type: research
Age-related differences in macromolecular resonances observed in ultra-short-TE STEAM MR spectra at 7T
CONCLUSIONS: Our findings provide insights into age-related differences in macromolecular contents and strengthen the necessity of using age-matched measured macromolecules during quantification.PMID:38441257 | DOI:10.1002/mrm.30061 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 5, 2024 Category: Radiology Authors: Guglielmo Genovese Melissa Terpstra Pavel Filip Silvia Mangia J Riley McCarten Laura S Hemmy Ma łgorzata Marjańska Source Type: research
GPU-accelerated Bloch simulations and MR-STAT reconstructions using the Julia programming language
CONCLUSION: By combining the proposed Bloch simulation toolbox and the partially matrix-free reconstruction algorithm, 2D MR-STAT reconstructions can be performed in the order of one minute on a modern GPU card. The Bloch simulation toolbox can be utilized for other quantitative MRI techniques as well, for example for online dictionary generation for MR Fingerprinting.PMID:38441315 | DOI:10.1002/mrm.30074 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 5, 2024 Category: Radiology Authors: Oscar van der Heide Cornelis A T van den Berg Alessandro Sbrizzi Source Type: research
Motion-compensated diffusion encoding in multi-shot human brain acquisitions: Insights using high-performance gradients
CONCLUSION: Second-order motion-compensated diffusion encoding mitigates and simplifies shot-to-shot phase variability in the human brain, rendering the multi-shot acquisition strategy an effective means to circumvent limitations of retrospective phase correction methods.PMID:38441339 | DOI:10.1002/mrm.30069 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 5, 2024 Category: Radiology Authors: Eric Seth Michael Franciszek Hennel Klaas Paul Pruessmann Source Type: research
Boosting reproducible research practices with the Repeat It With Me: Reproducibility Team Challenge
Magn Reson Med. 2024 Mar 5. doi: 10.1002/mrm.30041. Online ahead of print.NO ABSTRACTPMID:38441403 | DOI:10.1002/mrm.30041 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 5, 2024 Category: Radiology Authors: Laura Bortolotti Sophie Schauman Maria Eugenia Caligiuri Source Type: research
