Browsing by Author "Neji, R."
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- Item3D whole-heart free-breathing qBOOST-T2 mapping(2020) Milotta, G.; Ginami, G.; Bustin, A.; Neji, R.; Prieto Vásquez, Claudia; Botnar, René Michael
- ItemAccelerated free-breathing whole-heart 3D T2 mapping with high isotropic resolution(2020) Bustin, A.; Milotta, G.; Ismail, T. F.; Neji, R.; Botnar, René Michael; Prieto Vásquez, Claudia
- ItemCINENet : deep learning-based 3D cardiac CINE MRI reconstruction with multi-coil complex-valued 4D spatio-temporal convolutions(2020) Kustner, T.; Fuin, N.; Hammernik, K.; Bustin, A.; Qi, H. K.; Hajhosseiny, R.; Masci, P. G.; Neji, R.; Botnar, René Michael; Prieto Vásquez, Claudia; Rueckert, D.
- ItemHighly efficient motion-corrected simultaneous cardiac PET-MR imaging(2017) Munoz, C.; Neji, R.; Marsden, P.; Reader, A.J.; Botnar, R.M.; Prieto, C.
- ItemInversion recovery and saturation recovery pulmonary vein MR angiography using an image based navigator fluoro trigger and variable-density 3D cartesian sampling with spiral-like order(Springer Science and Business Media B.V., 2024) Craft, J.; Weber, J.; Li;Y.; Cheng, J.Y.; Diaz , N.; Kunze, K.P.; Schmidt, M.; Grgas, M.; Weber, S.; Tang, J.; Parikh, R.; Onuegbu, A.; Yamashita, A.-M.; Haag, E.; Fuentes, D.; Czipo, M.; Neji, R.; Espada, C.B.; Prieto Vasquez, Claudia Del Carmen; Botnar, Rene MichaelContrast enhanced pulmonary vein magnetic resonance angiography (PV CE-MRA) has value in atrial ablation pre-procedural planning. We aimed to provide high fidelity, ECG gated PV CE-MRA accelerated by variable density Cartesian sampling (VD-CASPR) with image navigator (iNAV) respiratory motion correction acquired in under 4 min. We describe its use in part during the global iodinated contrast shortage. VD-CASPR/iNAV framework was applied to ECG-gated inversion and saturation recovery gradient recalled echo PV CE-MRA in 65 patients (66 exams) using.15 mmol/kg Gadobutrol. Image quality was assessed by three physicians, and anatomical segmentation quality by two technologists. Left atrial SNR and left atrial/myocardial CNR were measured. 12 patients had CTA within 6 months of MRA. Two readers assessed PV ostial measurements versus CTA for intermodality/interobserver agreement. Inter-rater/intermodality reliability, reproducibility of ostial measurements, SNR/CNR, image, and anatomical segmentation quality was compared. The mean acquisition time was 3.58 ± 0.60 min. Of 35 PV pre-ablation datasets (34 patients), mean anatomical segmentation quality score was 3.66 ± 0.54 and 3.63 ± 0.55 as rated by technologists 1 and 2, respectively (p = 0.7113). Good/excellent anatomical segmentation quality (grade 3/4) was seen in 97% of exams. Each rated one exam as moderate quality (grade 2). 95% received a majority image quality score of good/excellent by three physicians. Ostial PV measurements correlated moderate to excellently with CTA (ICCs range 0.52–0.86). No difference in SNR was observed between IR and SR. High quality PV CE-MRA is possible in under 4 min using iNAV bolus timing/motion correction and VD-CASPR. Graphical Abstract: (Figure presented.)
- ItemIsotropic 3D Cartesian single breath-hold CINE MRI with multi-bin patch-based low-rank reconstruction(2020) Küstner, T.; Bustin, A.; Jaubert, O.; Hajhosseiny, R.; Masci, P. G.; Neji, R.; Botnar, René Michael; Prieto Vásquez, Claudia
- ItemMotion corrected water/fat whole-heart coronary MR angiography with 100% respiratory efficiency(2019) Munoz, C.; Cruz, G.; Neji, R.; Botnar, René Michael; Prieto Vásquez, Claudia
- ItemNon-contrast enhanced simultaneous 3D whole-heart bright-blood pulmonary veins visualization and black-blood quantification of atrial wall thickness(2019) Ginami, G.; Lopez, K.; Mukherjee, R.K.; Neji, R.; Munoz, C.; Roujol, S.; Mountney, P.; Razavi, R.; Botnar, René Michael; Prieto Vásquez, Claudia
- ItemRespiratory motion-compensated high-resolution 3D whole-heart T1ρ mapping(2020) Qi, H.K.; Bustin, A.; Kuestner, T.; Hajhosseiny, R.; Cruz, G.; Kunze, K; Neji, R.; Botnar, René Michael; Prieto Vásquez, Claudia
- ItemRespiratory- and cardiac motion-corrected simultaneous whole-heart PET and dual phase coronary MR angiography(2019) Muñoz, C.; Neji, R.; Kunze, K. P.; Nekolla, S. G.; Botnar, René Michael; Prieto Vásquez, Claudia
- ItemSimultaneous 3D whole-heart bright-blood and black blood imaging for cardiovascular anatomy and wall assessment with interleaved T(2)prep-IR(2019) Milotta, G.; Ginami, G.; Cruz, G.; Neji, R.; Prieto Vásquez, Claudia; Botnar, René Michael