An integrated target field framework for point-of-care halbach array low-field MRI system design
DISCUSSION: The framework allows the designer to optimize the different hardware components with respect to the desired imaging parameters taking into account the interdependencies between these components and thus give insight into the influence of the design choices.PMID:37208554 | DOI:10.1007/s10334-023-01093-z (Source: Magma)
Source: Magma - May 19, 2023 Category: Radiology Authors: Bart de Vos Rob F Remis Andrew G Webb Source Type: research
Impact of compressed sensing (CS) acceleration of two-dimensional (2D) flow sequences in clinical paediatric cardiovascular magnetic resonance (CMR)
CONCLUSION: SBOF reduces breath-hold duration to 56% of COF. RV flow by SBOF was biased compared to COF. The variation (95% CI) between COF and SBOF was similar to the COF intrasession test-retest 95% CI.PMID:37202654 | DOI:10.1007/s10334-023-01098-8 (Source: Magma)
Source: Magma - May 18, 2023 Category: Radiology Authors: Sara Moscatelli Peter Gatehouse Sylvia Krupickova Raad Mohiaddin Inga Voges Daniel Giese Sonia Nielles-Vallespin Dudley J Pennell Source Type: research
3D magnetic resonance fingerprinting on a low-field 50 mT point-of-care system prototype: evaluation of muscle and lipid relaxation time mapping and comparison with standard techniques
DISCUSSION: It is possible to measure volumetric relaxation times with MRF at 2.5 × 2.5 × 3.0 mm3 resolution in a 13 min scan time on a 50 mT permanent magnet system. The measured MRF relaxation times are longer compared to those measured with reference techniques, especially for T2. This discrepancy can potentially be addressed by hardware, reconstruction and sequence design, but long-term reproducibility needs to be further improved.PMID:37202655 | DOI:10.1007/s10334-023-01092-0 (Source: Magma)
Source: Magma - May 18, 2023 Category: Radiology Authors: Thomas O'Reilly Peter B örnert Hongyan Liu Andrew Webb Kirsten Koolstra Source Type: research
Tackling SNR at low-field: a review of hardware approaches for point-of-care systems
DISCUSSION: There are many different magnet and RF coil designs in the literature, and to enable meaningful comparisons and optimizations to be performed it would be very helpful to determine a standardized set of sensitivity measures, irrespective of design.PMID:37202656 | DOI:10.1007/s10334-023-01100-3 (Source: Magma)
Source: Magma - May 18, 2023 Category: Radiology Authors: Andrew Webb Thomas O'Reilly Source Type: research
Impact of compressed sensing (CS) acceleration of two-dimensional (2D) flow sequences in clinical paediatric cardiovascular magnetic resonance (CMR)
CONCLUSION: SBOF reduces breath-hold duration to 56% of COF. RV flow by SBOF was biased compared to COF. The variation (95% CI) between COF and SBOF was similar to the COF intrasession test-retest 95% CI.PMID:37202654 | DOI:10.1007/s10334-023-01098-8 (Source: Magma)
Source: Magma - May 18, 2023 Category: Radiology Authors: Sara Moscatelli Peter Gatehouse Sylvia Krupickova Raad Mohiaddin Inga Voges Daniel Giese Sonia Nielles-Vallespin Dudley J Pennell Source Type: research
