scholarly journals Motion corrected compressed sensing for free-breathing dynamic cardiac MRI

2012 ◽  
Vol 70 (2) ◽  
pp. 504-516 ◽  
Author(s):  
Muhammad Usman ◽  
David Atkinson ◽  
Freddy Odille ◽  
Christoph Kolbitsch ◽  
Ghislain Vaillant ◽  
...  
Keyword(s):  
Compressed Sensing ◽  
Cardiac Mri ◽  
Free Breathing

scholarly journals Free‐breathing fetal cardiac MRI with doppler ultrasound gating, compressed sensing, and motion compensation

2019 ◽  
Vol 51 (1) ◽  
pp. 260-272 ◽  
Author(s):  
Kostas Haris ◽  
Erik Hedström ◽  
Fabian Kording ◽  
Sebastian Bidhult ◽  
Katarina Steding‐Ehrenborg ◽  
...  
Keyword(s):  
Compressed Sensing ◽  
Doppler Ultrasound ◽  
Motion Compensation ◽  
Cardiac Mri ◽  
Free Breathing

3-D cardiac MRI in free-breathing newborns and infants: when is respiratory gating necessary?

2015 ◽  
Vol 45 (10) ◽  
pp. 1448-1454 ◽  
Author(s):  
Achim Seeger ◽  
Patrick Krumm ◽  
Andreas Hornung ◽  
Jürgen F. Schäfer ◽  
Ulrich Kramer ◽  
...  
Keyword(s):  
Cardiac Mri ◽  
Respiratory Gating ◽  
Free Breathing

Accelerated multi-snapshot free-breathing B1+ mapping based on the dual refocusing echo acquisition mode technique (DREAM): An alternative to measure RF nonuniformity for cardiac MRI

2018 ◽  
Vol 49 (2) ◽  
pp. 499-507 ◽  
Author(s):  
Teresa Rincón-Domínguez ◽  
Anne Menini ◽  
Ana Beatriz Solana ◽  
André Fischer ◽  
Guido Kudielka ◽  
...  
Keyword(s):  
Cardiac Mri ◽  
Free Breathing ◽  
Acquisition Mode ◽  
B1 Mapping ◽  
Mode Technique

scholarly journals 3D Dixon water-fat LGE imaging with image navigator and compressed sensing in cardiac MRI

2020 ◽  
Author(s):  
Martin Georg Zeilinger ◽  
Marco Wiesmüller ◽  
Christoph Forman ◽  
Michaela Schmidt ◽  
Camila Munoz ◽  
...  
Keyword(s):  
High Resolution ◽  
Image Quality ◽  
Compressed Sensing ◽  
Cardiac Mri ◽  
Three Dimensional ◽  
Fat Suppression ◽  
Diagnostic Confidence ◽  
Pericardial Disease ◽  
Scan Time ◽  
Wilcoxon Rank Sum Test

Abstract Objectives To evaluate an image-navigated isotropic high-resolution 3D late gadolinium enhancement (LGE) prototype sequence with compressed sensing and Dixon water-fat separation in a clinical routine setting. Material and methods Forty consecutive patients scheduled for cardiac MRI were enrolled prospectively and examined with 1.5 T MRI. Overall subjective image quality, LGE pattern and extent, diagnostic confidence for detection of LGE, and scan time were evaluated and compared to standard 2D LGE imaging. Robustness of Dixon fat suppression was evaluated for 3D Dixon LGE imaging. For statistical analysis, the non-parametric Wilcoxon rank sum test was performed. Results LGE was rated as ischemic in 9 patients and non-ischemic in 11 patients while it was absent in 20 patients. Image quality and diagnostic confidence were comparable between both techniques (p = 0.67 and p = 0.66, respectively). LGE extent with respect to segmental or transmural myocardial enhancement was identical between 2D and 3D (water-only and in-phase). LGE size was comparable (3D 8.4 ± 7.2 g, 2D 8.7 ± 7.3 g, p = 0.19). Good or excellent fat suppression was achieved in 93% of the 3D LGE datasets. In 6 patients with pericarditis, the 3D sequence with Dixon fat suppression allowed for a better detection of pericardial LGE. Scan duration was significantly longer for 3D imaging (2D median 9:32 min vs. 3D median 10:46 min, p = 0.001). Conclusion The 3D LGE sequence provides comparable LGE detection compared to 2D imaging and seems to be superior in evaluating the extent of pericardial involvement in patients suspected with pericarditis due to the robust Dixon fat suppression. Key Points • Three-dimensional LGE imaging provides high-resolution detection of myocardial scarring. • Robust Dixon water-fat separation aids in the assessment of pericardial disease. • The 2D image navigator technique enables 100% respiratory scan efficacy and permits predictable scan times.

scholarly journals Compressed sensing cardiac MRI exploiting spatio-temporal sparsity

2013 ◽  
Vol 15 (Suppl 1) ◽  
pp. E14
Author(s):  
Jafar Zamani ◽  
Abbas N Moghaddam ◽  
Hamidreza Rad
Keyword(s):  
Compressed Sensing ◽  
Cardiac Mri ◽  
Spatio Temporal
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