Person: Basha, Tamer A
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Basha
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Tamer A
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Basha, Tamer A
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Publication Efficient calculation of g-factors for CG-SENSE in high dimensions: noise amplification in random undersampling(BioMed Central, 2014) Akcakaya, Mehmet; Basha, Tamer A; Manning, Warren; Nezafat, RezaPublication Low latency iterative reconstruction of first pass stress cardiac perfusion with physiological stress using graphical processing unit(BioMed Central, 2013) Roujol, Sébastien; Basha, Tamer A; Schülke, Christophe; Buehrer, Martin; Manning, Warren; Nezafat, RezaPublication Accelerated free breathing ECG triggered contrast enhanced pulmonary vein magnetic resonance angiography using compressed sensing(BioMed Central, 2014) Roujol, Sébastien; Foppa, Murilo; Basha, Tamer A; Akcakaya, Mehmet; Kissinger, Kraig V; Goddu, Beth; Berg, Sophie; Nezafat, RezaBackground: 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 sensing (CS). Methods: Nineteen patients (59 ± 13 y, 11 M) referred for MR were scanned using the proposed accelerated free breathing ECG-triggered 3D CE-PV MRA sequence (FOV = 340 × 340 × 110 mm3, spatial resolution = 1.5 × 1.5 × 1.5 mm3, acquisition window = 140 ms at mid diastole and CS acceleration factor = 5) and a conventional first-pass breath-hold non ECG-triggered 3D CE-PV MRA sequence. CS data were reconstructed offline using low-dimensional-structure self-learning and thresholding reconstruction (LOST) CS reconstruction. Quantitative analysis of PV sharpness and subjective qualitative analysis of overall image quality were performed using a 4-point scale (1: poor; 4: excellent). Results: Quantitative PV sharpness was increased using the proposed approach (0.73 ± 0.09 vs. 0.51 ± 0.07 for the conventional CE-PV MRA protocol, p < 0.001). There were no significant differences in the subjective image quality scores between the techniques (3.32 ± 0.94 vs. 3.53 ± 0.77 using the proposed technique). Conclusions: CS-accelerated free-breathing ECG-triggered CE-PV MRA allows evaluation of PV anatomy with improved sharpness compared to conventional non-ECG gated first-pass CE-PV MRA. This technique may be a valuable alternative for patients in which the first pass CE-PV MRA fails due to inaccurate first pass timing or inability of the patient to perform a 20–25 seconds breath-hold.Publication Imaging surrogate of the ventricular arrhythmia substrate in a swine model of ventricular tachycardia: high resolution LGE vs. high resolution electro-anatomical mapping(BioMed Central, 2015) Roujol, Sébastien; Basha, Tamer A; Tschabrunn, Cory M; Kissinger, Kraig V; Josephson, Mark; Manning, Warren; Anter, Elad; Nezafat, RezaPublication Reproducibility of free-breathing multi-slice native myocardial T1 mapping using the slice-interleaved T1 (STONE) sequence(BioMed Central, 2015) Jang, Jihye; Roujol, Sébastien; Weingärtner, Sebastian; Basha, Tamer A; Berg, Sophie; Manning, Warren; Nezafat, RezaPublication Free-breathing multi-slice myocardial T2 mapping using slice-selective T2 magnetization preparation(BioMed Central, 2015) Basha, Tamer A; Roujol, Sébastien; Berg, Sophie; Manning, Warren; Nezafat, RezaPublication Evaluation of a free-breathing myocardial T1 mapping using magnetization-prepared slice interleaved spoiled gradient echo imaging in patient(BioMed Central, 2015) Jang, Jihye; Roujol, Sébastien; Basha, Tamer A; Kato, Shingo; Berg, Sophie; Manning, Warren; Nezafat, RezaPublication Precision and reproducibility of T2 quantifications in myocardial T2 mapping: impact of the number of echoes and reconstruction model(BioMed Central, 2015) Basha, Tamer A; Akcakaya, Mehmet; Roujol, Sébastien; Nezafat, RezaPublication Black blood late gadolinium enhancement using combined T2 magnetization preparation and inversion recovery(BioMed Central, 2015) Basha, Tamer A; Roujol, Sébastien; Kissinger, Kraig V; Goddu, Beth; Manning, Warren; Nezafat, RezaPublication Free-breathing myocardial T1 mapping using magnetization-prepared slice interleaved spoiled gradient echo imaging(BioMed Central, 2015) Roujol, Sébastien; Jang, Jihye; Basha, Tamer A; Weingartner, Sebastian; Berg, Sophie; Nezafat, Reza
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