Journal Articles

2017

Clinical Utility of Continuous Radial MRI Acquisition at 3T in Real-Time Patellofemoral Kinematic Assessment: A Feasibility Study,
Christopher Burke, Daniel J Kaplan, Tobias Block, Gregory Chang, Laith M Jazrawi, Kirk A Campbell, Michael J Alaia,
Arthroscopy, in press.

Evaluation of Transient Motion During Gadoxetic Acid-Enhanced Multiphasic Liver Magnetic Resonance Imaging Using Free-Breathing Golden-Angle Radial Sparse Parallel Magnetic Resonance Imaging,
Jeong Hee Yoon, Jeong Min Lee, Mi Hye Yu, Bo Yun Hur, Robert Grimm, Kai Tobias Block, Hersh Chandarana, Berthold Kiefer, Yohan Son,
Investigative Radiology 2017, early view.

Validation of Highly-Accelerated Real-Time Cardiac Cine MRI with Radial k-space Sampling and Compressed Sensing in Patients at 1.5T and 3T,
Hassan Haji-Valizadeh, Amir A. Rahsepar, Jeremy D. Collins, Elwin Bassett, Tamara Isakova, Tobias Block, Ganesh Adluru, Edward VR DiBella, Daniel C. Lee, James Carr, Daniel Kim,
Magnetic Resonance in Medicine 2017, in press.

Adaptive Bulk-Motion Exclusion for Improved Robustness of Abdominal MR Imaging,
Bjorn Stemkens, Thomas Benkert, Hersh Chandarana, Mark E. Bittman, Cornelis A.T. van den Berg, Jan J.W. Lagendijk, Daniel K. Sodickson, Rob H.N. Tijssen, Kai Tobias Block,
NMR in Biomedicine 2017, in press.

Dosimetric Evaluation of Synthetic CT for Magnetic Resonance-only Based Radiotherapy Planning of Lung Cancer,
Hesheng Wang, Hersh Chandarana, Kai Tobias Block, Thomas Vahle, Matthias Fenchel, Indra J Das,
Radiation Oncology 2017, in press.

Quantitative perfusion analysis of the Rectum Using Golden-Angle Radial Sparse Parallel MRI (GRASP): Initial Experience and Comparison to Time-Resolved Angiography With Interleaved Stochastic Trajectories (TWIST),
Ulrike I Attenberger, Jing Liu, Philipp Riffel, Johannes Budjan, Robert Grimm, Kai Tobias Block, Stefan O Schoenberg, Xiaoying Wang, Daniel Hausmann,
Investigative Radiology 2017, in press.

Comprehensive Dynamic Contrast-Enhanced 3D MR Imaging of the Breast with Fat/Water Separation and High Spatiotemporal Resolution Using Radial Sampling, Compressed Sensing, and Parallel Imaging Investigative Radiology,
Thomas Benkert, Kai Tobias Block, Samantha Heller, Melanie Moccaldi, Daniel K. Sodickson, Sungheon Gene Kim, and Linda Moy,
Investigative Radiology 2017, in press.

Improved Detection of Small Pulmonary Nodules Through Simultaneous MR/PET Imaging,
Boada FE, Koesters T, Block KT, Chandarana H,
Magnetic Resonance Imaging Clinics of North America 2017, early view.

The Role of High-Resolution DCE-MRI with GRASP Reconstruction in Identification of the Normal Pituitary Gland in Patients with Macroadenomas,
Rajeev Sen, Chandranath Sen, Jeremiah Pack, Tobias Block, John G. Golfinos, Vinay Prabhu, Fernando Boada, Oded Gonen, Douglas Kondziolka, Girish Fatterpekar,
American Journal of Neuroradiology, in press.

2016

Compressed Sensing for Body MRI,
Feng L, Benkert T, Block T, Sodickson D, Otazo R, Chandarana H,
Journal of Magnetic Resonance Imaging, in press.

Comparison of Conventional DCE-MRI and a Novel Golden-Angle Radial Multicoil Compressed Sensing Method for the Evaluation of Breast Lesion Conspicuity,
Laura‎ Heacock, Yiming‎ Gao, Samantha Heller, Amy Melsaether, James‎ Babb, Tobias‎ Block, Ricardo‎ Otazo, S. Gene Kim‎, Linda Moy,
Journal of Magnetic Resonance Imaging, in press.

Free-breathing Volumetric Fat/Water Separation by Combining Radial Sampling, Compressed Sensing, and Parallel Imaging,
Thomas Benkert, Li Feng, Daniel Sodickson, Hersh Chandarana, Kai Tobias Block,
Magnetic Resonance in Medicine, early view.

Multiparametric Imaging with Heterogeneous Radiofrequency Fields,
Martijn Cloos, Florian Knoll, Tiejun Zhao, Graham Wiggins, Mary Bruno, Kai Tobias Block, Daniel Sodickson,
Nature Communications 2016, early view.

‘One-stop Shop’: Free-breathing Dynamic Contrast-Enhanced MRI of the Kidney Using Iterative Reconstruction and Continuous Golden-Angle Radial Sampling,
Philipp Riffel, Frank G. Zöllner, Johannes Budjan, Mathias Meyer, John N. Morelli, Robert Grimm, Kai Tobias Block, Stefan O. Schoenberg, Daniel Hausmann,
Investigative Radiology 2016, early view.

2015

Performance of Simultaneous High Temporal Resolution Quantitative Perfusion Imaging of Bladder Tumors and Conventional Multi-phase Urography Using a Novel Free-Breathing Continuously Acquired Radial Compressed-Sensing MRI Sequence,
N Parikh, JM Ream, H Zhang, T Block, H Chandarana, AB Rosenkrantz,
Magnetic Resonance Imaging, in press.

Evaluation of the orbit using contrast-enhanced radial 3D fat-suppressed T1-weighted gradient-echo (Radial-VIBE) sequence,
Lev Bangiyev, Eytan Raz, Tobias Block, Mari Hagiwara, Xin Wu, Eugene Yu, Girish M. Fatterpekar,
British Journal of Radiology, ahead of print, 20140863.

Influence of Temporal Regularization and Radial Undersampling Factor on Compressed Sensing Reconstruction in Dynamic Contrast Enhanced MRI of the Breast,
Sungheon G. Kim, Li Feng, Robert Grimm, Melanie Freed, Kai Tobias Block, Daniel K. Sodickson, Linda Moy, Ricardo Otazo,
Journal of Magnetic Resonance Imaging, in press.

Respiratory Motion-Resolved Compressed Sensing Reconstruction of Free-Breathing Radial Acquisition for Dynamic Liver MRI,
Hersh Chandarana,  Li Feng, Justin Ream, Annie Wang, James S Babb, Kai Tobias Block, Daniel K Sodickson, Ricardo Otazo,
Investigative Radiology 2015, in press.

XD-GRASP: Golden-Angle Radial MRI with Reconstruction of Extra Motion-State Dimensions Using Compressed Sensing,
Li Feng, Leon Axel, Hersh Chandarana, Kai Tobias Block, Daniel K. Sodickson, Ricardo Otazo,
Magnetic Resonance in Medicine, 2015, in press.

High Resolution DCE-MRI of the Pituitary Gland Using Radial K-space Acquisition with Compressed Sensing Reconstruction,
Camilla Rossi Espagnet, Lev Bangiyev, Kai Tobias Block, Robert Grimm, Li Feng, Vito Ruggiero, James Babb, Adam Davis, Daniel K. Sodickson, Girish Fatterpekar,
American Journal of Neuroradiology, 2015, in press.

2014

A model-based reconstruction for undersampled radial spin echo DTI with variational penalties on the diffusion tensor,
Florian Knoll, Jose Raya, Rafael Halloran, Steven Baete, Eric Sigmund, Roland Bammer, Kai Block, Ricardo Otazo, Daniel Sodickson,
NMR in Biomedicine, 2014, in press.

Accelerated and motion-robust in vivo T2 mapping from radially undersampled data using Bloch-simulation-based iterative reconstruction,
Noam Ben-Eliezer, Daniel K Sodickson, Timothy Shepherd, Graham C Wiggins, Kai Tobias Block,
Magnetic Resonance in Medicine, 2014, in press.

Self-Gated MRI Motion Modeling for Respiratory Motion Compensation in Integrated PET/MRI,
Robert Grimm, Sebastian Fuerst, Michael Souvatzoglou, Christoph Forman, Jana Hutter, Isabel  Dregely, Sibylle I. Ziegler, Berthold Kiefer, Joachim Hornegger, Kai Tobias Block, Stephan G. Nekolla,
Medical Image Analysis, in press.

Estimating Liver Perfusion From Free-breathing Continuously Acquired Dynamic Gd-EOB-DTPA Enhanced Acquisition With Compressed Sensing Reconstruction,
Chandarana H, Block TK, Ream J, Mikheev A, Sigal SH, Otazo R, Rusinek H,
Investigative Radiology, early view.

Towards Routine Clinical Use of Radial Stack-of-Stars 3D Gradient-Echo Sequences for Reducing Motion Sensitivity,
Kai Tobias Block, Hersh Chandarana, Sarah Milla, Mary Bruno, Tom Mulholland, Girish Fatterpekar, Mari Hagiwara, Robert Grimm, Christian Geppert, Berthold Kiefer, Daniel K. Sodickson,
Journal of the Korean Society of Magnetic Resonance in Medicine 18(2):87-106, 2014.
Available online

Dynamic Contrast-Enhanced MRI of the Prostate with High Spatiotemporal Resolution using Compressed Sensing, Parallel Imaging, and Continuous Golden-Angle Radial Sampling: Preliminary Experience,
Rosenkrantz AB, Geppert C, Grimm R, Block TB, Glielmi C, Feng L, Otazo R, Ream JM, Romolo MM, Taneja SS, Sodickson DK, Chandarana H,
Journal of Magnetic Resonance Imaging, early view.

Rapid and Accurate T2 Mapping from Multi Spin Echo Data Using Bloch-Simulation-Based Reconstruction,
Noam Ben-Eliezer, Daniel K. Sodickson, Kai Tobias Block,
Magnetic Resonance in Medicine, 2014, early view.

Case Report: Combination of Increased Flip Angle, Radial k-space Trajectory, and Free Breathing Acquisition for Improved Detection of a Biliary Variant at Liver Donor Liver Transplant Evaluation using Gadoxetic-Acid Enhanced MRCP,
Rosenkrantz AB, Block TK, Hindman N, Vega E, Chandarana H,
Journal of Computer Assisted Tomography 38:277-280, 2014.

2013

Contrast-enhanced radial 3D fat-suppressed T1-weighted gradient-echo (Radial-VIBE) sequence: A viable and potentially superior alternative to conventional fat-suppressed contrast-enhanced T1-weighted studies of the head and neck,
Xin Wu, Eytan Raz, Tobias K Block, Christian Geppert, Mari Hagiwara, Mary T Bruno, Girish M Fatterpekar,
American Journal of Roentgenology, 203(4): 883-889, 2013.

Golden-Angle Radial Sparse Parallel MRI: Combination of Compressed Sensing, Parallel Imaging, and Golden-Angle Radial Sampling for Fast and Flexible Dynamic Volumetric MRI,
Li Feng, Kai Tobias Block, Robert Grimm, Hersh Chandarana, Sungheon Kim, Jian Xu, Leon Axel, Daniel K. Sodickson, Ricardo Otazo,
Magnetic Resonance in Medicine, Epub ahead of print.

Free-breathing contrast-enhanced T1-weighted gradient-echo imaging with radial k-space sampling for paediatric abdominopelvic MRI,
Hersh Chandarana, Kai T. Block, Matthew J. Winfeld, Shailee V. Lala, Daniel Mazori, Emalyn Giuffrida, James S. Babb, Sarah S. Milla,
European Radiology, Epub ahead of print.

Comparison of hybrid PET/MR and PET/CT imaging for detection of pulmonary nodules in patients with primary malignancy,
Hersh Chandarana, Laura Heacock, Rajan Rakheja, Linda R. DeMello, John Bonavita, Tobias K. Block, Christian Geppert, James S. Babb, Kent P. Friedman,
Radiology 268(3):874-81, 2013.

True real-time cardiac MRI in free breathing without ECG synchronization using a novel sequence with radial k-space sampling and balanced SSFP contrast mode,
Bauer RW, Radtke I, Block KT, Larson MC, Kerl JM, Hammerstingl R, Graf TG, Vogl TJ, Zhang S,
Int J Cardiovasc Imaging 29(5):1059-67, 2013.

Free-Breathing Contrast-Enhanced Multiphase MRI of the Liver using a Combination of Compressed Sensing, Parallel Imaging and Golden-Angle Radial Sampling,
Hersh Chandarana, Li Feng, Kai Tobias Block, Andrew B. Rosenkrantz, Ruth P. Lim, James S. Babb, Daniel K. Sodickson, Ricardo Otazo,
Investigative Radiology, 48(1): 10-16, 2013.

2012

Free-Breathing Dynamic Contrast-Enhanced MRI of the Abdomen and Chest Using a Radial Gradient Echo Sequence with K-Space Weighted Image Contrast (KWIC),
Kyung Won Kim, Jeong Min Lee, Yong Sik Jeon, Sung Eun Kang, Jee Hyun Baek, Joon Koo Han, Byung Ihn Choi, Yung-Jue Bang, Berthold Kiefer, Kai Tobias Block, Hyunjun Ji, Simon Bauer, Chin Kim,
European Radiology 2012 Nov 28, Epub ahead of print.

2011

Free-Breathing Radial 3D Fat-Suppressed T1-Weighted Gradient Echo Sequence: A Viable Alternative for Contrast-Enhanced Liver Imaging in Patients Unable to Suspend Respiration,
Hersh Chandarana, Kai Tobias Block, Andrew B. Rosenkrantz, Ruth P. Lim, Danny Kim, David J. Mossa, James S. Babb, Berthold Kiefer, and Vivian S. Lee,
Investigative Radiology, 46(10): 648-53, 2011.

2010

Magnetic Resonance Imaging in Real Time: Advances Using Radial FLASH,
Shuo Zhang, Kai Tobias Block, and Jens Frahm,
Journal of Magnetic Resonance Imaging, 31(1): 101-109, 2010.

2009

Model-Based Iterative Reconstruction for Radial Fast Spin-Echo MRI,
Kai Tobias Block, Martin Uecker, and Jens Frahm,
IEEE Transactions on Medical Imaging, 28(11): 1759-1769, 2009.

2008

Suppression of MRI Truncation Artifacts Using Total Variation Constrained Data Extrapolation,
Kai Tobias Block, Martin Uecker, and Jens Frahm,
International Journal of Biomedical Imaging, Volume 2008, 2008: 184123.

Image Reconstruction by Regularized Nonlinear Inversion – Joint Estimation of Coil Sensitivities and Image Content,
Martin Uecker, Thorsten Hohage, Kai Tobias Block, and Jens Frahm,
Magnetic Resonance in Medicine, 60(3): 674-682, 2008.

Radial Single-Shot STEAM MRI,
Kai Tobias Block and Jens Frahm,
Magnetic Resonance in Medicine, 59(4): 686-691, 2008.

2007

Undersampled Radial MRI with Multiple Coils. Iterative Image Reconstruction Using a Total Variation Constraint,
Kai Tobias Block, Martin Uecker, and Jens Frahm,
Magnetic Resonance in Medicine, 57(6): 1086-1098, 2007.

2005

Spiral imaging: A critical appraisal,
Kai Tobias Block and Jens Frahm,
Journal of Magnetic Resonance Imaging, 21(6): 657-668, 2005.