Selected Conference Abstracts
2021
51) O. B. Demirel, B. Yaman, S. Moeller, L. Dowdle, L. Vizioli, K. Kay, E. Yacoub, J. Strupp, C. Olman, K. Uğurbil and M. Akçakaya, “Improved Accelerated fMRI Reconstruction using Self-supervised Deep Learning,” Proc. 29th Meeting of ISMRM, Vancouver, BC, Canada, May 2021.
50) B. Yaman, S.A.H. Hosseini, S. Moeller, J. Ellermann, K. Uğurbil and M. Akçakaya, “Multi-Mask Self-Supervised Deep Learning for Highly Accelerated Physics-Guided MRI Reconstruction,” Proc. 29th Meeting of ISMRM, Vancouver, May 2021.
49) B. Yaman, S.A.H. Hosseini, S. Moeller and M. Akçakaya, “Enhancing the Reconstruction quality of Physics-Guided Deep Learning via Holdout Multi-Masking,” Proc. 29th Meeting of ISMRM, Vancouver, May 2021.
48) C. Zhang, J. Jia, B Yaman, S. Moeller, S. Liu, M Hong and M. Akçakaya, "On Instabilities of Conventional Multi-Coil MRI Reconstruction to Small Adversarial Perturbations", Proc. 29th Meeting of ISMRM, Vancouver, May 2021.
47) H. Gu, B. Yaman, K. Uğurbil, S. Moeller and M. Akçakaya, “Compressed Sensing MRI Revisited: Optimizing l1-Wavelet Reconstruction with Modern Data Science Tools,” Proc. 29th Meeting of ISMRM, Vancouver, May 2021.
46) Z. Deng, B. Yaman, C. Zhang, S. Moeller and M. Akçakaya, “Effective Training of 3D Unrolled Neural Networks on Small Databases," Proc. 29th Meeting of ISMRM, Vancouver, May 2021.
45) J. Tourais, I. Hermann, O. B. Demirel, S. Weingärtner and M. Akçakaya, " 2D High Resolution Myocardial TRAFF2 Mapping: Reproducibility and Accuracy," Proc. 29th Meeting of ISMRM, Vancouver, May 2021.
44) B. Yaman, C. Shenoy, Z. Deng, H. El-Rewaidy, R. Nezafat and M. Akçakaya, “Physics-Guided Self-Supervised Deep Learning Reconstruction without Fully-Sampled Data for Improved High-Resolution 3D LGE CMR,” Proc. 24th Meeting of SCMR, February 2021.
SCMR Early Career Award Finalist (Basic Science)
43) J. Tourais, I. Hermann, O. B. Demirel, S. Weingärtner and M. Akçakaya, "2D Myocardial TRAFFn: Relaxation Along Fictitious Field in the nth Rotating Frame," Proc. 24th Meeting of SCMR, February 2021.
2020
42) B. Yaman, S.A.H. Hosseini, S. Moeller, J. Ellermann, K. Uğurbil and M. Akçakaya, “Physics-Based Self-Supervised Deep Learning for Accelerated MRI Without Fully Sampled Reference Data,” Proc. 28th Meeting of ISMRM, August 2020.
41) S.A.H. Hosseini, B. Yaman, S. Moeller, J. Ellermann, K. Uğurbil, M. Hong and M. Akçakaya, “Unrolled Physics-Based Deep Learning MRI Reconstruction with Dense Connections using Nesterov Acceleration ,” Proc. 28th Meeting of ISMRM, August 2020.
40) O. B. Demirel, S. Weingärtner, S. Moeller and M. Akçakaya, “Improved SMS Reconstruction using ReadOut-Concatenated K-space SPIRiT (ROCK-SPIRiT)”, Proc. 28th Meeting of ISMRM, August 2020.
39) S. A. Hosseini, C. Zhang, S. Weingärtner, S. Moeller, K. Uğurbil and M. Akçakaya, “Regularized sRAKI-RNN: Accelerated Coronary MRI Using Database-Free Machine Learning Reconstruction,” Proc. 23rd Meeting of SCMR, Orlando, FL, February 2020.
38) B. Yaman, S. A. Hosseini, S. Moeller, J. Ellermann, K. Uğurbil and M. Akçakaya, “Ground Truth-Free Deep Learning MRI Reconstruction Using Physics Based Self-Supervised Learning,” ISMRM Workshop on Data Sampling & Image Reconstruction, Sedona, AZ, January 2020.
37) O. B. Demirel, S. Weingärtner, S. Moeller and M. Akçakaya, “ReadOut-Concatenated k-space SPIRiT (ROCK-SPIRiT): regularized reconstruction for improved SMS imaging,” ISMRM Workshop on Data Sampling & Image Reconstruction, Sedona, AZ, January 2020.
2019
36) O. B. Demirel, S. Weingärtner, S. Moeller, and M. Akçakaya, “Multi-Band SPIRiT Strategies for Improved Simultaneous Multi-slice Myocardial Mapping,” Proc. 27th Meeting of ISMRM, Montreal, May 2019.
35) S. A. Hosseini, S. Moeller, S. Weingärtner, K. Uğurbil and M. Akçakaya, “Accelerated Coronary MRI using Sparsity-Regularized SPIRiT-RAKI,” Proc. 27th Meeting of ISMRM, Montreal, May 2019.
34) B. Yaman, S. Weingärtner, S. Moeller, N. Kargas, N. D. Sidiropoulos and M. Akçakaya, “High-Resolution Dynamic Myocardial T1 Mapping using Low-Rank Tensor Regularization Methods,” Proc. 27th Meeting of ISMRM, Montreal, May 2019.
33) C. Zhang, S. Moeller, S. Weingärtner, K. Uğurbil and M. Akçakaya, “Accelerated MRI Using Residual RAKI: Scan-specific Learning of Reconstruction Artifacts,” Proc. 27th Meeting of ISMRM, Montreal, May 2019.
32) S. Moeller, S. Ramanna, K. Uğurbil and M. Akçakaya, “kz-GRAPPA for 3D parallel imaging with localized estimation of interpolation kernels,” Proc. 27th Meeting of ISMRM, Montreal, May 2019.
31) S. A. Hosseini, S. Moeller, S. Weingärtner, K. Uğurbil and M. Akçakaya, "Accelerated MRI Using Scan-Specific SPIRiT-RAKI Interpolation with Sparsity Regularization,” International Biomedical and Astronomical Signal Processing (BASP) Frontiers Workshop, Villars-sur-Ollon, Switzerland, February 2019.
2018
30) M. Akçakaya, S. Moeller, S. Weingärtner and K. Uğurbil, “Scan-specific Robust Artificial-neural-networks for k-space Interpolation-based (RAKI) Reconstruction: Database-free Deep Learning for Fast Imaging,” Proc. 26th Meeting of ISMRM, Paris, June 2018.
29) S. Weingärtner, S. Moeller, C. Shenoy and M. Akçakaya, “High-Resolution T1 Mapping using Parameter-Free Low Rank Denoising,” Proc. 26th Meeting of ISMRM, Paris, June 2018.
28) S. Weingärtner, S. Moeller and M. Akçakaya, “Feasibility of Ultra-high Simultaneous Multi-slice and In-plane Accelerations for Cardiac MRI Using Outer Volume Suppression and Leakage-Blocking Reconstruction,” Proc. 26th Meeting of ISMRM, Paris, June 2018.
27) S. Weingärtner, B. Yaman, C. Shenoy, M. Prothmann, F. Wenson, J. Schulz-Menger and M. Akçakaya, “Cardiac Phase-resolved Late-Gadolinium Enhancement Imaging,” Proc. 26th Meeting of ISMRM, Paris, June 2018.
Best Cardiac MR Presentation
26) S. Moeller, S. Weingärtner, K. Uğurbil and M. Akçakaya, “Application of a Scan-Specific Deep Learning Reconstruction to Multiband/SMS Imaging,” Proc. 26th Meeting of ISMRM, Paris, June 2018.
25) S. Moeller, S. Ramanna, E. Yacoub and M. Akçakaya, “Progress in the use of SQUASHER for Diffusion weighted imaging,” Proc. 26th Meeting of ISMRM, Paris, June 2018.
2017
24) S. Weingärtner, S. Moeller, K. Uğurbil, C. Shenoy and M. Akçakaya, "Simultaneous Multi-Slice Imaging For Whole Heart Myocardial T1 Mapping in a Single Breath-Hold," Proc. 25th Meeting of ISMRM, Hawaii, HI, April 2017.
23) S. Weingärtner, S. Moeller, C. Shenoy and M. Akçakaya, "16-fold Spatial-Only Acceleration For High-Resolution Myocardial Perfusion Using Multi-Band Imaging and Multi-Band Outer Volume Suppression," Proc. 25th Meeting of ISMRM, Hawaii, HI, April 2017.
22) S. Moeller, X. Wu, N. Harel, M. Garwood and M. Akçakaya, "SQUASHER: 3D Fourier encoding with frequency swept pulses," Proc. 25th Meeting of ISMRM, Hawaii, HI, April 2017.
21) S. Weingärtner, C. Shenoy and M. Akçakaya, "Cine T1 Mapping: B1 corrected Look-Locker inversion recovery for phase resolved T1-Mapping at 3T," Journal of Cardiovascular Magnetic Resonance, 19 Suppl 1:P172, 2017.
2016
20) S. Weingärtner, G. Metzger, P.-F. van de Moortele and M. Akçakaya, “Cardiac Phase-Resolved B1+ Mapping at 3T,” Proc. 24th Meeting of ISMRM, Singapore, Singapore, May 2016.
19) S. Moeller, S. Schmitter and M. Akçakaya, “Noise Amplification vs. Resolution Tradeoff in the SLIDER Technique” Proc. 24th Meeting of ISMRM, Singapore, Singapore, May 2016.
18) M. Akçakaya, T. A. Basha, C. Tsao, S. Berg, K. V. Kissinger, B. Goddu, W. J. Manning and R. Nezafat, “High-Resolution Late Gadolinium Enhancement Imaging with Compressed Sensing: A Single-Center Clinical Study,” Journal of Cardiovascular Magnetic Resonance, 18 Suppl 1:O56, 2016.
2015 and earlier
17) M. Akçakaya, V. Tarokh and R. Nezafat, “Joint Compressed Sensing and Sparse Phase Retrieval: Reconstruction from a Combination of Complex and Magnitude-only k-space Measurements,” Proc. 23rd Meeting of ISMRM, Toronto, Canada, May 2015.
16) M. Akçakaya, S. Weingärtner, T. A. Basha, S. Roujol and R. Nezafat, “Joint Myocardial T1 and T2 Mapping Using a Saturation-Recovery Sequence,” Proc. 23rd Meeting of ISMRM, Toronto, Canada, May 2015.
15) M. Akçakaya, T. A. Basha, W. J. Manning and R. Nezafat, “Efficient Calculation of g-factors for CG-SENSE in High Dimensions: Noise Amplification in Random Undersampling,” Journal of Cardiovascular Magnetic Resonance, 16 Suppl 1:W28, 2014.
14) M. Akçakaya, S. Weingärtner, W. J. Manning and R. Nezafat, “Selection of Sampling Points for Saturation Recovery Based Myocardial T1 Mapping,” J Cardiovascular Magnetic Resonance, 16 Suppl 1:W32, 2014.
13) M. Akçakaya, J. L. Shaw, T. H. Hauser and R. Nezafat, “Improved Signal-To-Noise Ratio in Late Gadolinium Enhancement Imaging by Using Respiratory-Navigator-Rejected K-Space Lines,” Proc. 21st Meeting of ISMRM, Salt Lake City, USA, May 2013.
12) M. Akçakaya, T. A. Basha, R. H. Chan, W. J. Manning and R. Nezafat, “Accelerated Sub-mm Whole-Heart Coronary MRI: Compressed Sensing vs. Parallel Imaging,” Proc. 21st Meeting of ISMRM, Salt Lake City, USA, May 2013.
11) M. Akçakaya, T. A. Basha, M. Foppa, K. V. Kissinger, W. J. Manning and R. Nezafat, “Accelerated Three-Dimensional Free-Breathing First Pass Cardiac Perfusion at 1.5T,” Journal of Cardiovascular Magnetic Resonance, 15 Suppl 1:P42, 2013.
10) M. Akçakaya, P. Gulaka, T. A. Basha, T. H. Hauser, W. J. Manning and R. Nezafat, “Improved Efficiency for Respiratory Motion Compensation in Three-Dimensional Flow Measurements,” Journal of Cardiovascular Magnetic Resonance, 15 Suppl 1:P30, 2013.
9) M. Akçakaya, M. Henningsson, R. Nezafat and R. M. Botnar, “Comparison of Respiratory Navigator Techniques for Interleaved High-Resolution Coronary Vessel Wall Imaging,” Journal of Cardiovascular Magnetic Resonance, 15 Suppl 1:E20, 2013.
8) M. Akçakaya, H. Rayatzadeh, S. N. Hong, T. H. Hauser, R. H. Chan, T. A. Basha, K. V. Kissinger, B. Goddu, W. J. Manning and R. Nezafat, “Improved Late Gadolinium Enhancement Imaging of Left Ventricle with Isotropic Spatial Resolution,” Journal of Cardiovascular Magnetic Resonance, 14 Suppl 1:O22, 2012.
SCMR Early Career Award Finalist (Basic Translational)
7) M. Akçakaya, S. N. Hong, R. H. Chan, T. A. Basha, M. H. Moghari, K. V. Kissinger, B. Goddu, M. E. Josephson W. J. Manning and R. Nezafat, “Left Atrial Scar Assessment using Imaging with Isotropic Spatial Reso;ution and Compressed Sensing,” Journal of Cardiovascular Magnetic Resonance, 14 Suppl 1:O8, 2012.
SCMR Early Career Award Finalist (Basic Science)
6) M. Akçakaya, T. A. Basha, B. Goddu, L. Goepfert, K. V. Kissinger, V. Tarokh, W. J. Manning and R. Nezafat, "Low-dimensional-Structure Self-Learning and Thresholding (LOST): Regularization Beyond Compressed Sensing for MRI Reconstruction," Proc. 19th Meeting of ISMRM, Montreal, Canada, May 2011.
5) M. Akçakaya*, S. Nam*, T. A. Basha, V. Tarokh, W. J. Manning and R. Nezafat, "Iterative Compressed Sensing Reconstruction for 3D Non-Cartesian Trajectories without Gridding & Regridding at Every Iteration," Proc. 19th Meeting of ISMRM, Montreal, Canada, May 2011 (*: denotes co-first authorship).
4) M. Akçakaya*, T. A. Basha*, K. V. Kissinger, B. Goddu, L. Goepfert, W. J. Manning and R. Nezafat, " Accelerated Contrast-Enhanced Whole Heart Coronary MRI Using Low-dimensional-Structure Self-learning and Thresholding (LOST), an Improved Compressed Sensing Reconstruction," Proc. 19th Meeting of ISMRM, Montreal, Canada, May 2011 (*: denotes co-first authorship).
3) M. Akçakaya, S. Nam, P. Hu, V. Tarokh, W. J. Manning and R. Nezafat, "Compressed Sensing with Transform Domain Dependencies for Coronary MRI," Proc. 18th Meeting of ISMRM, Stockholm, Sweden, May 2010.
2) M. Akçakaya, P. Hu, V. Tarokh, W. J. Manning and R. Nezafat, "Non-Contrast Enhanced Pulmonary Vein MRA with Compressed Sensing," Proc. 18th Meeting of ISMRM, Stockholm, Sweden, May 2010.
1) M. Akçakaya, S. Nam, M. H. Moghari, P. Hu, W. J. Manning, V. Tarokh and R. Nezafat, “Accelerated Coronary MRI Using Compressed Sensing with Transform Domain Dependencies: A Feasibility Study,” Journal of Cardiovascular Magnetic Resonance, 12 (Suppl 1), pp. 107-108, 2010.