Browsing by Author "Akcakaya, Mehmet"
Now showing items 1-14 of 14
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Accelerated free breathing ECG triggered contrast enhanced pulmonary vein magnetic resonance angiography using compressed sensing
Roujol, Sébastien; Foppa, Murilo; Basha, Tamer A; Akçakaya, Mehmet; Kissinger, Kraig V; Goddu, Beth; Berg, Sophie; Nezafat, Reza (BioMed Central, 2014)Background: To investigate the feasibility of accelerated electrocardiogram (ECG)-triggered contrast enhanced pulmonary vein magnetic resonance angiography (CE-PV MRA) with isotropic spatial resolution using compressed ... -
Accelerated three-dimensional free-breathing first pass cardiac perfusion at 1.5T
Akcakaya, Mehmet; Basha, Tamer; Foppa, Murilo; Kissinger, Kraig V; Manning, Warren J.; Nezafat, Reza (BioMed Central, 2013) -
An Augmented Lagrangian Based Compressed Sensing Reconstruction for Non-Cartesian Magnetic Resonance Imaging without Gridding and Regridding at Every Iteration
Akçakaya, Mehmet; Nam, Seunghoon; Basha, Tamer A.; Kawaji, Keigo; Tarokh, Vahid; Nezafat, Reza (Public Library of Science, 2014)Background: Non-Cartesian trajectories are used in a variety of fast imaging applications, due to the incoherent image domain artifacts they create when undersampled. While the gridding technique is commonly utilized for ... -
Comparison of respiratory navigator techniques for interleaved high-resolution coronary vessel wall imaging
Akcakaya, Mehmet; Henningsson, Markus; Nezafat, Reza; Botnar, Rene M (BioMed Central, 2013) -
Free-Breathing Late Gadolinium Enhancement CMR with a Fixed Short Scan Time Using CosMo
Moghari, Mehdi H.; Rayatzadeh, Hussein; Hong, Susie; Chan, Raymond H.; Akcakaya, Mehmet; Goddu, Beth; Goepfert, Lois A; Kissinger, Kraig V; Manning, Warren J.; Nezafat, Reza (BioMed Central, 2012)To evaluate the performance of compressed sensing for motion correction (CosMo) [1] in compensating the respiratory motion of the heart in 3D late gadolinium enhancement (LGE) CMR. -
Heart-rate independent myocardial T1-mapping using combined saturation and inversion preparation pulses
Weingärtner, Sebastian; Akcakaya, Mehmet; Berg, Sophie; Kissinger, Kraig V; Manning, Warren J.; Nezafat, Reza (BioMed Central, 2013) -
Impact of motion correction on reproducibility and spatial variability of quantitative myocardial T2 mapping
Roujol, Sébastien; Basha, Tamer A.; Weingärtner, Sebastian; Akçakaya, Mehmet; Berg, Sophie; Manning, Warren J.; Nezafat, Reza (BioMed Central, 2015)Background: To evaluate and quantify the impact of a novel image-based motion correction technique in myocardial T2 mapping in terms of measurement reproducibility and spatial variability. Methods: Twelve healthy adult ... -
Improved 3D late gadolinium enhancement MRI for patients with arrhythmia or heart rate variability
Weingärtner, Sebastian; Akcakaya, Mehmet; Berg, Sophie; Kissinger, Kraig V; Manning, Warren J.; Nezafat, Reza (BioMed Central, 2013) -
Improved accelerated breath-hold radial cine image reconstruction by acquiring additional free-breathing data between breath-holds
Nam, Seunghoon; Akcakaya, Mehmet; Kwak, Yongjun; Goddu, Beth; Kissinger, Kraig V; Manning, Warren J.; Tarokh, Vahid; Nezafat, Reza (BioMed Central, 2012) -
Improved efficiency for respiratory motion compensation in three-dimensional flow measurements
Akcakaya, Mehmet; Gulaka, Praveen; Basha, Tamer; Hauser, Thomas Henry; Manning, Warren J.; Nezafat, Reza (BioMed Central, 2013) -
Improved Late Gadolinium Enhancement Imaging of Left Ventricle with Isotropic Spatial Resolution
Akcakaya, Mehmet; Rayatzadeh, Hussein; Hong, Susie; Hauser, Thomas Henry; Chan, Raymond Ho Ming; Basha, Tamer; Kissinger, Kraig V; Goddu, Beth; Manning, Warren J.; Nezafat, Reza (BioMed Central, 2012) -
Improved Navigator-Gated Motion Compensation in Cardiac MR Using Additional Constraint of Magnitude of Motion-Corrupted Data
Shaw, Jaime L; Moghari, Mehdi H.; Akcakaya, Mehmet; Chan, Raymond Ho Ming; Manning, Warren J.; Nezafat, Reza (BioMed Central, 2012)Background. In conventional prospective respiratory navigator (NAV) acquisitions, 40-60% of the acquired data are discarded resulting in low efficiency and long scan times [1,2].Compressed-sensing Motion Compensation (CosMo) ... -
Left Atrial Scar Assessment Using Imaging With Isotropic Spatial Resolution and Compressed Sensing
Akcakaya, Mehmet; Hong, Susie; Chan, Raymond Ho Ming; Basha, Tamer; Moghari, Mehdi H.; Kissinger, Kraig V; Goddu, Beth; Josephson, Mark; Manning, Warren J.; Nezafat, Reza (BioMed Central, 2012)Summary. We assess left atrial scar using late gadolinium enhancement (LGE) with isotropic spatial resolution of \(1.4^3 mm^3\) by using highly accelerated LOST [1] reconstruction. Background. Atrial fibrillation (AF) is ... -
Whole Heart Coronary Imaging with Flexible Acquisition Window and Trigger Delay
Kawaji, Keigo; Foppa, Murilo; Roujol, Sébastien; Akçakaya, Mehmet; Nezafat, Reza (Public Library of Science, 2015)Coronary magnetic resonance imaging (MRI) requires a correctly timed trigger delay derived from a scout cine scan to synchronize k-space acquisition with the quiescent period of the cardiac cycle. However, heart rate changes ...