scholarly journals Accelerated contrast-enhanced whole-heart coronary MRI using low-dimensional-structure self-learning and thresholding

2012 ◽  
Vol 67 (5) ◽  
pp. 1434-1443 ◽  
Author(s):  
Mehmet Akçakaya ◽  
Tamer A. Basha ◽  
Raymond H. Chan ◽  
Hussein Rayatzadeh ◽  
Kraig V. Kissinger ◽  
...  
Keyword(s):  
Dimensional Structure ◽  
Contrast Enhanced ◽  
Low Dimensional ◽  
Whole Heart ◽  
Self Learning ◽  
Coronary Mri

scholarly journals Accelerated contrast-enhanced whole-heart coronary MRI using low-dimensional-structure self-learning and thresholding

2012 ◽  
Vol 67 (5) ◽  
pp. spcone-spcone
Author(s):  
Mehmet Akçakaya ◽  
Tamer A. Basha ◽  
Raymond H. Chan ◽  
Hussein Rayatzadeh ◽  
Kraig V. Kissinger ◽  
...  
Keyword(s):  
Dimensional Structure ◽  
Contrast Enhanced ◽  
Low Dimensional ◽  
Whole Heart ◽  
Self Learning ◽  
Coronary Mri

scholarly journals Low-dimensional-structure self-learning and thresholding: Regularization beyond compressed sensing for MRI Reconstruction

2011 ◽  
Vol 66 (3) ◽  
pp. 756-767 ◽  
Author(s):  
Mehmet Akçakaya ◽  
Tamer A. Basha ◽  
Beth Goddu ◽  
Lois A. Goepfert ◽  
Kraig V. Kissinger ◽  
...  
Keyword(s):  
Compressed Sensing ◽  
Dimensional Structure ◽  
Mri Reconstruction ◽  
Low Dimensional ◽  
Self Learning

scholarly journals Contrast-enhanced whole heart coronary MRI with a bolus infusion of gadobenate dimeglumine at 1.5 t

2010 ◽  
Vol 12 (S1) ◽  
Author(s):  
Peng Hu ◽  
Jonathan Chan ◽  
Jouke Smink ◽  
Beth Goddu ◽  
Kraig V Kissinger ◽  
...  
Keyword(s):  
Gadobenate Dimeglumine ◽  
Bolus Infusion ◽  
Contrast Enhanced ◽  
Whole Heart ◽  
Coronary Mri

scholarly journals Contrast-enhanced whole-heart coronary MRI with bolus infusion of gadobenate dimeglumine at 1.5 T

2010 ◽  
Vol 65 (2) ◽  
pp. 392-398 ◽  
Author(s):  
Peng Hu ◽  
Jonathan Chan ◽  
Long H. Ngo ◽  
Jouke Smink ◽  
Beth Goddu ◽  
...  
Keyword(s):  
Gadobenate Dimeglumine ◽  
Bolus Infusion ◽  
Contrast Enhanced ◽  
Whole Heart ◽  
Coronary Mri

scholarly journals Self-navigated 3D whole-heart MRA for non-enhanced surveillance of thoracic aortic dilation: a comparison to CTA

2021 ◽  
Vol 22 (Supplement_1) ◽  
Author(s):  
P Poskaite ◽  
M Pamminger ◽  
C Kranewitter ◽  
C Kremser ◽  
M Reindl ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Image Quality ◽  
Aortic Aneurysm ◽  
Thoracic Aortic Aneurysm ◽  
Aortic Dilation ◽  
Subjective Image Quality ◽  
Contrast Enhanced ◽  
Whole Heart ◽  
Enhanced Computed Tomography ◽  
Contrast Enhanced Computed Tomography

Abstract Funding Acknowledgements Type of funding sources: None. Background The natural history of thoracic aortic aneurysm (TAA) is one of progressive expansion. Asymptomatic patients who do not meet criteria for repair require conservative management including ongoing aneurysm surveillance, mostly carried out by contrast-enhanced computed tomography angiography (CTA). Purpose To prospectively compare image quality and reliability of a prototype non-contrast, self-navigated 3D whole-heart magnetic resonance angiography (MRA) with contrast-enhanced computed tomography angiography (CTA) for sizing of thoracic aortic aneurysm (TAA). Methods Self-navigated 3D whole-heart 1.5 T MRA was performed in 20 patients (aged 67 ± 8.6 years, 75% male) for sizing of TAA; a subgroup of 18 (90%) patients underwent additional contrast-enhanced CTA on the same day. Subjective image quality was scored according to a 4-point Likert scale and ratings between observers were compared by Cohen’s Kappa statistics. Continuous MRA and CTA measurements were analyzed with regression and Bland-Altman analysis. Results Overall subjective image quality as rated by two observers was 1 [interquartile range (IQR) 1-2] for self-navigated MRA and 1.5 [IQR 1-2] for CTA (p = 0.717). For MRA a perfect inter-observer agreement was found for presence of artefacts and subjective image sharpness (κ=1). Subjective signal inhomogeneity correlated highly with objectively quantified inhomogeneity of the blood pool signal (r = 0.78-0.824, all p <0.0001). Maximum diameters of TAA as measured by self-navigated MRA and CTA showed excellent correlation (r = 0.997, p < 0.0001) without significant inter-method bias (bias -0.0278, lower and upper limit of agreement -0.74 and 0.68, p = 0.749). Inter- and intraobserver correlation of aortic aneurysm as measured by MRA was excellent (r = 0.963 and 0.967, respectively) without significant bias (all p ≤ 0.05). Conclusion Self-navigated 3D whole-heart MRA enables reliable contrast- and radiation free aortic dilation surveillance without significant difference to standardized CTA while providing predictable acquisition time and by offering excellent image quality. Abstract Figure.

P-83 Evaluation of Multiple Coronary Artery Aneurysms in Kawasaki's Disease by Whole Heart Non-contrast Enhanced MRI

2009 ◽  
Vol 4 ◽  
pp. S75
Author(s):  
Osama L. Gomaa ◽  
Tarinee Tangcharoen ◽  
Thomas Kokocinski ◽  
Bernhard Schnackenburg ◽  
Fleck Eckart ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Coronary Artery Aneurysms ◽  
Enhanced Mri ◽  
Contrast Enhanced ◽  
Kawasaki’S Disease ◽  
Whole Heart ◽  
Kawasaki's Disease ◽  
Contrast Enhanced Mri

Low-Dimensional-Structure Devices for Future ElectronicsBehaviors

2018 ◽  
Author(s):  
Shunri Oda ◽  
Takamasa Kawanago ◽  
Hitoshi Wakabayashi
Keyword(s):  
Dimensional Structure ◽  
Low Dimensional

Emission in Wide Band Gap II-VI Semiconductor Compounds with Low Dimensional Structure

2003 ◽  
pp. 211-216
Author(s):  
Y Yang ◽  
X Fan ◽  
J Zhang ◽  
Y Liu ◽  
Y Lu ◽  
...  
Keyword(s):  
Band Gap ◽  
Wide Band ◽  
Dimensional Structure ◽  
Wide Band Gap ◽  
Semiconductor Compounds ◽  
Low Dimensional

scholarly journals Deep learning-based whole-heart segmentation in 4D contrast-enhanced cardiac CT

2021 ◽  
pp. 105191
Author(s):  
Steffen Bruns ◽  
Jelmer M. Wolterink ◽  
Thomas P.W. van den Boogert ◽  
Jurgen H. Runge ◽  
Berto J. Bouma ◽  
...  
Keyword(s):  
Deep Learning ◽  
Cardiac Ct ◽  
Contrast Enhanced ◽  
Whole Heart
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