Publications

2024

Fat Suppression Using Frequency-Sweep RF Saturation and Iterative Reconstruction
Ruoxun Zi, Thomas Benkert, Hersh Chandarana, Riccardo Lattanzi, Kai Tobias Block
Magnetic Resonance in Medicine, 2024, in press

Free-breathing high-resolution respiratory-gated radial stack-of-stars magnetic resonance imaging of the upper abdomen at 7 T
Maatman, Ivo T; Schulz, Jenni; Ypma, Sjoerd; Block, Kai Tobias; Schmitter, Sebastian; Hermans, John J; Smit, Ewoud J; Maas, Marnix C; Scheenen, Tom W J.
NMR in Biomedicine, 2024, in press

Preliminary Experience with Three Alternative Motion Sensors for 0.55 Tesla MR Imaging
Tibrewala, Radhika, Douglas Brantner, Ryan Brown, Leanna Pancoast, Mahesh Keerthivasan, Mary Bruno, Kai Tobias Block, Bruno Madore, Daniel K. Sodickson, and Christopher M. Collins.
Sensors 24, no. 12: 3710, 2024.

Patterns of Access to Radiology Reports and Images Through a Patient Portal
Jason Wang, Julia E Goldberg, Tobias Block, Dana Ostrow, Dan Carbone, Michael Recht, Ankur Doshi
Journal of Imaging Informatics in Medicine. 2024: #5632732

2023

MP-RAVE: IR-Prepared T1-Weighted Radial Stack-of-Stars 3D GRE Imaging with Retrospective Motion Correction
Eddy Solomon, Eyal Lotan, Elcin Zan, Daniel K. Sodickson, Kai Tobias Block, Hersh Chandarana
Magnetic Resonance in Medicine 2023, in press

2022

Single-Spoke Binning: Reducing Motion Artifacts in Abdominal Radial Stack-of-Stars Imaging
I.T. Maatman, S. Ypma, M. Kachelrieß, Y. Berker, K.T. Block, J.J. Hermans, M.C. Maas, T.W.J. Scheenen
Magnetic Resonance in Medicine 2022, in press

Distinguishing brain metastasis progression from radiation effects after stereotactic radiosurgery using longitudinal GRASP dynamic contrast-enhanced MRI
Assaf Berger, Matthew D. Lee, Eyal Lotan, Kai Tobias Block, Girish Fatterpekar, Douglas Kondziolka
Neurosurgery, 2022, in press

Highly Time-Resolved 4D MR Angiography Using Golden-Angle Radial Sparse Parallel (GRASP) MRI
Adam E. Goldman-Yassen, Eytan Raz, Maria J. Borja, Duan Chen, Anna Derman, Siddhant Dogra, Kai Tobias Block, Seena Dehkharghani
Scientific Reports, 2022, in press

Factors Affecting MRI Scanner Efficiency in an Academic Center
Smereka P, Weng J, Block KT, Chandarana H
Abdominal Radiology, 2022, in press

Subtle pitfalls in the search for faster medical imaging
Kai Tobias Block
Proceedings of the National Academy of Sciences of the United States of America 2022, 119(17), e2203040119

Radial spoiled gradient T1 weighted imaging of the internal auditory canal: Is Scarpa’s ganglion now an expected finding and source of fundal enhancement?
Munawar K, Raz E, Dehkharghani S, Fatterpekar GM, Block KT, Lui YW
The Neuroradiology Journal 2022, 19714009211067407, advance online publication

2021

Respiratory anomalies associated with gadoxetate disodium and gadoterate meglumine: compressed sensing MRI revealing physiologic phenomena during the entire injection cycle
Glessgen CG, Breit HC, Block TK, Merkle EM, Heye T, Boll DT
European Radiology 2021, early view

Diagnostic Abdominal MR Imaging on a Prototype Low-Field 0.55T Scanner Operating at Two Different Gradient Strengths
Hersh Chandarana, Barun Bagga, Chenchan Huang, Bari Dane, Robert Petrocelli, Mary Bruno, Mahesh Keerthivasan, David Grodzki, Kai Tobias Block, David Stoffel, Daniel K Sodickson
Abdominal Radiology 2021, in press

Evaluation of liver fibrosis and cirrhosis on the basis of quantitative T1 mapping: Are acute inflammation, age and liver volume confounding factors?
Hanns-Christian Breit, Winkel Jean David, Tobias Kai Block, Maurice Henkel, Boll Tobias Daniel, Weikert Thomas, Gehweiler Julian, Stieltjes Bram, Heye Tobias
European Journal of Radiology 2021, in press

Revisiting DCE-MRI: Classification of prostate tissue using descriptive signal-enhancement features derived from DCE-MRI acquisition with high spatiotemporal resolution
Breit HC, Winkel DJ, Block KT, Gehweiler JE, Seifert H, Wetterauer C, Boll DT, Heye T
Investigative Radiology 2021, in press

2020

Comparison of Image quality of subtracted and nonsubtracted breath hold VIBE and free breathing GRASP for evaluation of renal masses
Steffen Huber, Patricia Balcacer De la Cruz, Mahan Mathur, Michael Spektor, Ryan Lo, Tobias Block, Gary Israel
Clinical Imaging 2020, in press

Magnetization-Prepared GRASP MRI for Rapid 3D T1 Mapping and Fat/Water-Separated T1 Mapping
Li Feng, Fang Liu, Georgios Soultanidis, Chenyu Liu, Thomas Benkert, Kai Tobias Block, Zahi Fayad, Yang Yang
Magnetic Resonance in Medicine 2020, in press

Free-Breathing Radial Imaging Using a Pilot-Tone RF Transmitter for Detection of Respiratory Motion
Eddy Solomon, David Rigie, Thomas Vahle, Jan Paska, Jan Bollenbeck, Daniel K. Sodickson, Fernando Boada, Kai Tobias Block, Hersh Chandarana
Magnetic Resonance in Medicine 2020, early view

How to Implement AI in the Clinical Enterprise: Opportunities and Lessons Learned
Yvonne W. Lui, Krzysztof Geras, K. Tobias Block, Marc Parente, Joseph Hood, Michael P. Recht
Journal of the American College of Radiology : JACR. 2020 17(11):1394-1397

Comparison of Contrast-Enhanced Videofluoroscopy to Unenhanced Dynamic MRI in Minor Patients Following Surgical Correction of Velopharyngeal Dysfunction
Christophe T Arendt, Katrin Eichler, Martin G Mack, Doris Leithner, S Zhang, Kai T Block, Yakup Berdan, Robert Sader, Julian L Wichmann, Tatjana Gruber-Rouh, Thomas J Vogl, Maya C Hoelter
European Radiology, in press, 2020

The Added Value of High Spatiotemporal Resolution Dynamic Contrast-Enhanced MRI to Established Sequences for the Image-Based Prediction of Histopathology Risk Groups of Peripheral Zone Prostate Cancer: A Supervised Machine Learning Approach
David Jean Winkel, Hanns-Christian Breit, Tobias K. Block, Daniel T. Boll, Tobias Heye
European Radiology, 2020, in press

Golden-Angle Radial Sparse Parallel (GRASP) MRI Differentiates Head & Neck Paragangliomas From Schwannomas
Theo Demerath, Kristine Blackham, Constantin Anastasopoulos, Kai Tobias Block, Bram Stieltjes, Tilman Schubert
Magnetic Resonance Imaging 2020, in press

Free-Breathing Fat and R2* Quantification in the Liver Using a Stack-of-Stars Multi-Echo Acquisition with Respiratory-Resolved Model-Based Reconstruction
Manuel Schneider, Thomas Benkert, Eddy Solomon, Dominik Nickel, Matthias Fenchel, Berthold Kiefer, Andreas Maier, Hersh Chandarana, Kai Tobias Block
Magnetic Resonance in Medicine 2020, in press

2019

Highly-Accelerated, Real-Time Phase-Contrast MRI Using Radial k-Space Sampling and GROG-GRASP Reconstruction: A Feasibility Study in Pediatric Patients with Congenital Heart Disease
Hassan Haji-Valizadeh, Li Feng, Liliana E. Ma, Daming Shen, Kai Tobias Block, Joshua D. Robinson, Michael Markl, Cynthia K. Rigsby, Daniel Kim
NMR in Biomedicine 2019, in press

Assessing the Qualitative and Quantitative Impacts of Simple Two-Class versus Multiple Tissue Class MR-Based Attenuation Correction for Cardiac PET/MR
Philip Robson, Vittoria Vergani, Thomas Benkert, MariaGiovanna Trivieri, Nicolas Karakatsanis, Ronan Abgral, Marc Dweck, Pedro Moreno, Jason Kovacic, Kai Block, and Zahi Fayad
Journal of Nuclear Cardiology 2019, in press

Magnetization Transfer in Magnetic Resonance Fingerprinting
Hilbert T, Xia D, Block KT, Yu Z, Lattanzi R, Sodickson DK, Kober T, Cloos MA
Magnetic Resonance in Medicine 2019, early view
Available online

Volumetric Multicomponent T1ρ Relaxation Mapping of the Human Liver under Free Breathing at 3T
Azadeh Sharafi, Rahman Baboli, Marcelo Zibetti, Krishna Shanbhogue, Sonja Olsen, Tobias Block, Hersh Chandarana, and Ravinder Regatte
Magnetic Resonance in Medicine 2019, in press

The Discrete Fourier Transform for Golden Angle Linogram Sampling
Elias S. Helou, Marcelo V. W. Zibetti, Leon Axel, Kai Tobias Block, Ravinder R. Regatte, and Gabor T. Herman
Inverse Problems 2019, in press

Gadoxetate Disodium versus Gadoterate Meglumine: Quantitative Respiratory and Hemodynamic Metrics using Compressed Sensed MRI
Carl Guillaume Glessgen, Manuela Moor, Bram Stieltjes, David Jean Winkel, Kai Tobias Block, Elmar Merkle, Tobias Heye, Daniel Boll
Radiology 2019, in press

Dynamic Contrast Enhanced MRI to Differentiate Parotid Neoplasms Utilizing Golden-angle Radial Sparse Parallel Imaging
Jonathan Mogen, Kai Tobias Block, Neil Bansal, James Patrie, Sugoto Mukherjee, Elcin Zan, Mari Hagiwara, Girish M. Fatterpekar, Sohil H. Patel
AJNR 2019, in press

3D T1-Weighted Contrast-Enhanced Brain MRI in Children Using a Golden Angle Radial Acquisition with Reduced Bulk Motion Sensitivity
Houchun H. Hu, Thomas Benkert, Mark Smith, Jeremy Jones, Aaron McAllister, Jerome Rusin, Ramkumar Krishnamurthy, Rajesh Krishnamurthy, Kai Tobias Block
Clinical Imaging, 55:112-118, 2019

Post-Contrast T1-Weighted Spine 3T MRI in Children Using a Golden-Angle Radial Acquisition
Houchun Harry Hu, Thomas Benkert, Mark Smith, Jeremy Y. Jones, Aaron S. McAllister, Jerome A. Rusin, Ramkumar Krishnamurthy, Kai Tobias Block
Neuroradiology, 61(3):341-349, 2019

Optimization of MRI Turnaround Times Through the Use of Dockable Tables and Innovative Architectural Design Strategies
Michael P. Recht, Kai Tobias Block, Hersh Chandarana, Jennifer Friedland, Thomas Mullholland, Donal Teahan, Roy Wiggins
AJR 212(4):855-858, 2019

2018

Compressed Sensing Radial Sampling MRI of Prostate Perfusion: Utility for Detection of Prostate Cancer
David J. Winkel, Tobias J. Heye, Matthias R. Benz, Carl G. Glessgen, Christian Wetterauer, Lukas Bubendorf, Tobias K. Block, Daniel T. Boll
Radiology 2018, early view

Rapid T1 quantification from high resolution 3D data with model-based reconstruction
Oliver Maier, Jasper Schoormans, Matthias Schloegl, Gustav J Strijkers, Andreas Lesch, Thomas Benkert, Tobias Block, Bram F Coolen, Kristian Bredies, Rudolf Stollberger
Magnetic Resonance in Medicine, 81(3):2072-2089, 2019

Hybrid T2- and T1-Weighted Radial Acquisition for Free-Breathing Abdominal Examination
Thomas Benkert, John Mugler, David Rigie, Daniel Sodickson, Hersh Chandarana, Kai Tobias Block
Magnetic Resonance in Medicine, 80(5):1935-1948, 2018

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, 34(3):726-733, 2018

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, 53(1):52-61, 2018

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, 79(5):2745-2751, 2018

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, 30(11), 2017

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, 12(1):108, 2017

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, 52(12):715-724, 2017

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, 52(10):583-589, 2017

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, 25(2):273-279, 2017

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, 38(6):1117-1121, 2017

2016

Compressed Sensing for Body MRI
Feng L, Benkert T, Block T, Sodickson D, Otazo R, Chandarana H
Journal of Magnetic Resonance Imaging, early view, 2016

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, 45(6):1746-1752 2017

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, 78(2):565-576, 2017

Multiparametric Imaging with Heterogeneous Radiofrequency Fields
Martijn Cloos, Florian Knoll, Tiejun Zhao, Graham Wiggins, Mary Bruno, Kai Tobias Block, Daniel Sodickson
Nature Communications 7:12445, 2016

‘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, 51(11):714-719, 2016

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, 34(5): 694-698, 2016

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, 88(1054): 20140863, 2015

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, 43(1): 261-269, 2016

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, 50(11): 749-756, 2015

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, 75(2): 775-788, 2015

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, 36(8): 1444-1449, 2015

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, 28(3): 353-366, 2015

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, 75(3): 1346-1354, 2016

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, 19(1): 110-120, 2015

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, 50(2): 88-94, 2015

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, 41(5): 1365-1373, 2015

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, 73(2): 809-817, 2014

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, 72(3): 707-717, 2014

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, 24(2):320-326, 2014

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, 23(5):1352-1360, 2013

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