An extended phase graph-based framework for DANTE-SPACE simulations including physiological, temporal, and spatial variations
CONCLUSION: The presented simulation framework facilitates a more comprehensive optimization of DANTE-SPACE sequence parameters. Furthermore, the simulation framework helps to explain observed contrasts in acquired data.PMID:38469983 | DOI:10.1002/mrm.30071 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 12, 2024 Category: Radiology Authors: Matthijs H S de Buck Peter Jezzard Aaron T Hess Source Type: research
Integrating data distribution prior via Langevin dynamics for end-to-end MR reconstruction
CONCLUSION: The proposed method incorporating Langevin dynamics with end-to-end adversarial training facilitates efficient and robust reconstruction for MRI. Empirical evaluations conducted on brain and knee datasets compellingly demonstrate the superior performance of the proposed method in terms of artifact removing and detail preserving.PMID:38469985 | DOI:10.1002/mrm.30065 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 12, 2024 Category: Radiology Authors: Jing Cheng Zhuo-Xu Cui Qingyong Zhu Haifeng Wang Yanjie Zhu Dong Liang Source Type: research
Reduced cross-scanner variability using vendor-agnostic sequences for single-shell diffusion MRI
CONCLUSION: The Pulseq diffusion sequence reduces the cross-scanner variability for both phantom and in-vivo data, which will benefit multi-center neuroimaging studies and improve the reproducibility of neuroimaging studies.PMID:38469671 | DOI:10.1002/mrm.30062 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 12, 2024 Category: Radiology Authors: Qiang Liu Lipeng Ning Imam Ahmed Shaik Congyu Liao Borjan Gagoski Berkin Bilgic William Grissom Jon-Fredrik Nielsen Maxim Zaitsev Yogesh Rathi Source Type: research
Hyperpolarized < sup > 15 < /sup > N caffeine, a potential probe of liver function and perfusion
CONCLUSION: These results establish the feasibility of hyperpolarization of hyperpolarized 15 N-caffeine, but further work is necessary to establish the role of this new agent to probe liver metabolism and perfusion.PMID:38469685 | DOI:10.1002/mrm.30070 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 12, 2024 Category: Radiology Authors: Cornelius von Morze Ashley Shaw Tyler Blazey Source Type: research
TensorFit: A torch-based tool for ultrafast metabolite fitting of large MRSI data sets
CONCLUSION: TensorFit enables fast and robust metabolite fitting in large MRSI data sets compared with conventional metabolite fitting methods. This tool could boost the clinical applicability of large 3D MRSI by enabling the fitting of large MRSI data sets within computation times acceptable in a clinical environment.PMID:38469890 | DOI:10.1002/mrm.30084 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 12, 2024 Category: Radiology Authors: Federico Turco Milena Capiglioni Guodong Weng Johannes Slotboom Source Type: research
In vivo < mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" > < mml:mrow > < mml:msubsup > < mml:mi > B < /mml:mi > < mml:mn > 1 < /mml:mn > < mml:mo > + < /mml:mo > < /mml:msubsup > < /mml:mrow > < /mml:math > enhancement of calf MRI at 7 T via optimized flexible metasurfaces
CONCLUSION: The results demonstrate that metasurfaces provide superior performance to dielectric padding as shown by B 1 + $$ {\mathrm{B}}_1^{+} $$ maps reflecting their direct effects and resulting enhancements in image SNR at 7 T.PMID:38469893 | DOI:10.1002/mrm.30060 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 12, 2024 Category: Radiology Authors: Paul S Jacobs Neil Wilson Wyger Brink Anshuman Swain Ryan Armbruster Aniketh Hanumapur M Dylan Tisdall John Detre Ravi Prakash Reddy Nanga Mark A Elliott Ravinder Reddy Source Type: research
Measuring CSF shunt flow with MRI using flow enhancement of signal intensity (FENSI)
CONCLUSION: The results demonstrate the technique's applicability, accuracy, and potential for diagnosing and noninvasively monitoring hydrocephalus. Limitations of the current approach include a high sensitivity to motion and strict requirement of imaging slice prescription.PMID:38469904 | DOI:10.1002/mrm.30079 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 12, 2024 Category: Radiology Authors: Mingxiao Zhang William C Olivero Jason M Huston Suguna Pappu Paul M Arnold Arundhati Biswas Aaron T Anderson Bradley P Sutton Source Type: research
Flexible metasurface for improving brain imaging at 7T
CONCLUSION: Optimized metasurfaces enable homogenizing transmit field distribution in the brain at 7T. The proposed lightweight and flexible structure can potentially provide MR examination with higher diagnostic value images.PMID:38469911 | DOI:10.1002/mrm.30088 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 12, 2024 Category: Radiology Authors: Vladislav Koloskov Wyger M Brink Andrew G Webb Alena Shchelokova Source Type: research
A 3D dual-echo spiral sequence for simultaneous dynamic susceptibility contrast and dynamic contrast-enhanced MRI with single bolus injection
CONCLUSION: A 3D dual-echo spiral technique was developed to simultaneously acquire both DSC and DCE data in a single-bolus injection with reduced contrast use. Preliminary volunteer and patient data demonstrated increased temporal SNR, reduced geometric artifacts, and accurate perfusion quantification, suggesting a competitive alternative to SOC-EPI techniques for brain perfusion MRI.PMID:38469930 | DOI:10.1002/mrm.30077 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 12, 2024 Category: Radiology Authors: Zhiqiang Li Dinghui Wang Melvyn B Ooi Poonam Choudhary Sudarshan Ragunathan John P Karis James G Pipe C Chad Quarles Ashley M Stokes Source Type: research
Intra-scan RF power amplifier drift correction
CONCLUSION: Utilizing DICO recordings and implementing a feedback mechanism enable the prospective correction of RFPA drift. Having a calibration scan, predictive correction can be utilized with fewer complexity; for enhanced performance, a run-time approach can be employed.PMID:38469935 | DOI:10.1002/mrm.30078 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 12, 2024 Category: Radiology Authors: Ali Aghaeifar Dario Bosch Rahel Heule Sydney Williams Philipp Ehses Franck Mauconduit Klaus Scheffler Source Type: research
Inline automatic quality control of 2D phase-contrast flow MRI for subject-specific scan time adaptation
CONCLUSION: The inline quality control enables subject-specific optimized scan times while ensuring consistent diagnostic image quality. The distribution of automated stopping times across the population revealed the value of a subject-specific scan time.PMID:38469944 | DOI:10.1002/mrm.30083 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 12, 2024 Category: Radiology Authors: Pierre Daud é Rajiv Ramasawmy Ahsan Javed Robert J Lederman Kelvin Chow Adrienne E Campbell-Washburn Source Type: research
High-field downfield MR spectroscopic imaging in the human brain
CONCLUSION: High-field DF-MRSI is able to spatially map exchangeable protons in the human brain at high resolution and with near whole-brain coverage in acceptable scan times, and in the future may be used to study metabolism of brain tumors or other neuropathological disorders.PMID:38469953 | DOI:10.1002/mrm.30075 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 12, 2024 Category: Radiology Authors: İpek Özdemir Semra Etyemez Peter B Barker Source Type: research
An extended phase graph-based framework for DANTE-SPACE simulations including physiological, temporal, and spatial variations
CONCLUSION: The presented simulation framework facilitates a more comprehensive optimization of DANTE-SPACE sequence parameters. Furthermore, the simulation framework helps to explain observed contrasts in acquired data.PMID:38469983 | DOI:10.1002/mrm.30071 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 12, 2024 Category: Radiology Authors: Matthijs H S de Buck Peter Jezzard Aaron T Hess Source Type: research
Integrating data distribution prior via Langevin dynamics for end-to-end MR reconstruction
CONCLUSION: The proposed method incorporating Langevin dynamics with end-to-end adversarial training facilitates efficient and robust reconstruction for MRI. Empirical evaluations conducted on brain and knee datasets compellingly demonstrate the superior performance of the proposed method in terms of artifact removing and detail preserving.PMID:38469985 | DOI:10.1002/mrm.30065 (Source: Magnetic Resonance in Medicine)
Source: Magnetic Resonance in Medicine - March 12, 2024 Category: Radiology Authors: Jing Cheng Zhuo-Xu Cui Qingyong Zhu Haifeng Wang Yanjie Zhu Dong Liang 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
