Kai Tobias Block

Kai Tobias Block, PhD
Associate Professor of Radiology
Function: 
Key Personnel
Affiliation: 
CAI²R
Phone: 
(212) 263 3342
Address: 
4th floor, 660 First Avenue, New York, NY 10010
Educational Details: 
  • 2005 – 2008    PhD School of Mathematical Sciences, University of Göttingen
  • 1999 – 2004    Studies of Physics (Diploma), University of Göttingen
Research Interest: 
  • Non-Cartesian MR imaging techniques, in particular radial k-space sampling
  • Iterative reconstruction techniques, including compressed-sensing and model-based approaches
  • Clinical workflow and protocol optimizations
  • Development of software infrastructure for MR research

This presentation gives an overview of some of my current research activities.

Selected Publications: 
Journal Publications

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 2014, in press.

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 2014, 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.

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, in press.

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.

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.

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.

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.

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.

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.

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.

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

Conference Contributions

Variable Temporal Resolution Reconstruction for Golden-Angle Radial Sparse Parallel DCE-MRI
Robert Grimm, Dominik Nickel, Jana Hutter, Christoph Forman, Berthold Kiefer, Joachim Hornegger, and Kai Tobias Block
In Proc. Intl. Soc. Mag. Reson. Med. 22 (2014): 5773

High Spatiotemporal Dynamic Contrast-Enhanced MRI of the Small Bowel in Active Crohn’s Terminal Ileitis using Compressed Sensing, Parallel Imaging, and Golden-Angle Radial Sampling
Justin M Ream, Ankur M Doshi, K Tobias Block, Sungheon Kim, Ricardo Otazo, Li Feng, and Hersh Chandarana
In Proc. Intl. Soc. Mag. Reson. Med. 22 (2014): 4292

High resolution DCE MRI of the Pituitary gland using Radial K space Aquisition 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, and Girish Fatterpekar
In Proc. Intl. Soc. Mag. Reson. Med. 22 (2014): 4669

Functional assessment of hypopituitarism: Novel perfusion criteria using radial-VIBE sequence with GRASP technique
Camilla Rossi Espagnet, Lev Bangiyev, Kai Tobias Block, Robert Grimm, Daniel K. Sodickson, Benjamin Cohen, Thomas Mulholland, Ajax George, James Babb, and Girish Fatterpekar
In Proc. Intl. Soc. Mag. Reson. Med. 22 (2014): 6992

Optimizing MR acquisition time for dynamic pituitary gland evaluation utilizing GRASP
Camilla Rossi Espagnet, Lev Bangiyev, Kai Tobias Block, Robert Grimm, Fernando Boada, Timothy Shepherd, David Chen, James Babb, and Girish Fatterpekar
In Proc. Intl. Soc. Mag. Reson. Med. 22 (2014): 7118

Flexible temporal reconstruction of continuously acquired dynamic contrast enhanced acquisition for simultaneous perfusion and morphologic imaging of the abdomen.
Hersh Chandarana, Tobias Block, Justin M Ream, Henry Rusinek et al
In Proc. Intl. Soc. Mag. Reson. Med. 22 (2014): 5302

Combined Compressed Sensing, Parallel Imaging, and Golden-Angle Radial Sampling for High Spatiotemporal Dynamic Contrast-Enhanced MRI of the Prostate.
Rosenkrantz AB, Geppert C, Grimm R, Block TK, Glielmi C, Feng Li, Otazo R, Ream JM, Romolo MM, Taneja SS, Sodickson DK, Chandarana H.
In Proc. Intl. Soc. Mag. Reson. Med. 22 (2014): 988

Accelerated in vivo mapping of T2 relaxation from radially undersampled datasets using compressed sensing and model-based reconstruction
Noam Ben-Eliezer, Li Feng, Kai Tobias Block, Daniel K. Sodickson, and Ricardo Otazo
In Proc. Intl. Soc. Mag. Reson. Med. 22 (2014): 1597

Rapid and Accurate T2 Mapping from Multi Spin Echo Data Using Bloch-Simulation-Based Reconstruction
Noam Ben-Eliezer, Daniel K. Sodickson, and Kai Tobias Block
In Proc. Intl. Soc. Mag. Reson. Med. 22 (2014): 1499

Model-based DTI reconstruction with sparsity constraints on the diffusion tensor
Florian Knoll, Jos’e G Raya, Rafael O Halloran, Steven Beate, Eric Sigmund, Roland Bammer, Tobias Block, Ricardo Otazo, and Daniel K Sodickson
In Proc. Intl. Soc. Mag. Reson. Med. 22 (2014): 1169

Combination of a radial sequence for in vivo DTI of articular cartialge with an iterative model-based reconstruction
Jose G Raya, Florian Knoll, Lauren Burcaw, Sina Milani, Daniel K Sodickson, and Tobias K Block
In Proc. Intl. Soc. Mag. Reson. Med. 22 (2014): 7865

Simultaneous MR-PET Reconstruction using Multi Sensor Compressed Sensing and Joint Sparsity
Florian Knoll, Thomas Koesters, Ricardo Otazo, Tobias Block, Li Feng, Kathleen Vunckx, David Faul, Johan Nuyts, Fernando Boada, and Daniel K Sodickson
In Proc. Intl. Soc. Mag. Reson. Med. 22 (2014): 6395

Motion-compensated EM PET Reconstruction for Simultaneous PET/MR Exams
Thomas Koesters, Li Feng, Kai Tobias Block, Michael Fieseler, Klaus P Schäfers, David Faul, Daniel K Sodickson, and Fernando Emilio Boada
In Proc. Intl. Soc. Mag. Reson. Med. 22 (2014): 4831

Radial-VIBE with GRASP: A Novel Technique in Evaluation of the Head and Neck
Lev Bangiyev, Xin Wu, Kai Tobias Block, Robert Grimm Camilla Rossi Espagnet, Daniel K. Sodickson, Mari Hagiwara, Mary Bruno, James Babb, Girish Fatterpekar
ASNR 2014: EdE-59

Permeability Measures of Normal Structures of Head and Neck: A Proof-of-Principle Study Utilizing DCE Imaging with Radial-VIBE and GRASP Technique
Lev Bangiyev, Xin Wu, Kai Tobias Block, Robert Grimm Camilla Rossi Espagnet, Daniel K. Sodickson, Mari Hagiwara, Mary Bruno, James Babb, Girish Fatterpekar
ASNR 2014: O-103

L. Bangiyev, C. Rossi Espagnet, T. Block, A. Davis, M. Bruno, F. Boada, G. M. Fatterpekar
Permeability imaging of the pituitary gland: a novel application of RADIAL VIBE with GRASP technique
ENRS 25th Annual Meeting 2013

Maya C. Larson, Philipp Weisser, Renate M. Hammerstingl, Martin Beeres, Kai T. Block, Thomas J. Vogl
Free Breathing Radial 3D VIBE– A Possibility to Perform Dynamic Contrast Enhanced Abdominal MRI Examinations of Children under General Anesthesia with an Improved Image Quality
RSNA 2013

C.R. Seuss, A.P. Klautau Leite, J.S. Babb, M. Freed, K.T. Block, S. Kim, L. Moy
Utility of a Quantitative Analysis of Contrast Enhancement to Discriminate Between Benign and Malignant Entities Using a Linear Principal Component Analysis Method
RSNA 2013

R. Grimm, S. Fürst, I. Dregely, C. Forman, J. Hutter, S. Nekolla, B. Kiefer, M. Schwaiger, J. Hornegger, and T. Block
Self-gated Radial MRI for Respiratory Motion Compensation on Hybrid PET/MR Systems
MICCAI 2013: #624

L. Bangiyev, E. Raz, T. Block, M. Hagiwara, E. Yu, G.M. Fatterpekar
Contrast-enhanced radial 3D fat-suppressed T1-weighted gradient echo (Radial-VIBE) sequence: A viable and potentially superior alternative to conventional T1-MPRAGE with water excitation and fat-suppressed contrast-enhanced T1W sequence for evaluation of the orbit
ASNR Annual Meeting 2013: O-413

T. Kosters , M. Fieseler, T. Block, F. Wubbeling, D. Faul, F. Boada, K. Schafers
Combined AW-OSEM Reconstruction and Mass-Preserving Motion Correction of PET Data
12th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine 2013, Lake Tahoe

F. Knoll, K.T. Block, K. Bredies, C. Diwoky, L. Axel, D.K. Sodickson, R. Stollberger
Accelerated 3D Radial Imaging with 3D Variational Regularization
In Proc. Intl. Soc. Mag. Reson. Med. 21 (2013): 2636

A.P.K. Leite, M. Freed, M. Moccaldi, K.T. Block, A. Melsaether, A. Amarosa, S. Kim, L. Moy
Association of Lesion and Background Parenchyma in Diagnostically Challenging Breast Lesions
In Proc. Intl. Soc. Mag. Reson. Med. 21 (2013): 3364

R. Grimm, L. Feng, C. Forman, J. Hutter, B. Kiefer, J. Hornegger, K.T. Block
Automatic Bolus Analysis for DCE-MRI Using Radial Golden-Angle Stack-Of-Stars GRE Imaging
In Proc. Intl. Soc. Mag. Reson. Med. 21 (2013): 0696

K.T. Block, R. Grimm, L. Feng, R. Otazo, H. Chandarana, M. Bruno, C. Geppert, D.K. Sodickson
Bringing Compressed Sensing to Clinical Reality: Prototypic Setup for Evaluation in Routine Applications
In Proc. Intl. Soc. Mag. Reson. Med. 21 (2013): 3809

L. Feng, J. Liu, K.T. Block, J. Xu, L. Axel, D.K. Sodickson, R. Otazo
Compressed Sensing Reconstruction with an Additional Respiratory-Phase Dimension for Free-Breathing Imaging
In Proc. Intl. Soc. Mag. Reson. Med. 21 (2013): 0606

R. Grimm, C. Forman, J. Hutter, B. Kiefer, J. Hornegger, K.T. Block
Fast Automatic Coil Selection for Radial Stack-Of-Stars GRE Imaging
In Proc. Intl. Soc. Mag. Reson. Med. 21 (2013): 3786

H. Chandarana, K.T. Block, H. Rusinek, M.B. Greenberg, L. Feng, D.K. Sodickson, R. Otazo
Free-Breathing Dynamic Contrast Enhanced Compressed-Sensing Imaging for Reliable Estimation of Liver Perfusion
In Proc. Intl. Soc. Mag. Reson. Med. 21 (2013): 4084

H. Chandarana, L. Heacock, R. Rakheja, L. DeMello, J. Bonavita, K.T. Block, C. Geppert, K. Friedman
Free-Breathing Radial 3D Fat-Suppressed T1-Weighted Gradient Echo Sequence for Pulmonary Nodule Detection in Patients Undergoing PET/CT Followed by Simultaneous PET/MR Examination
In Proc. Intl. Soc. Mag. Reson. Med. 21 (2013): 4108

M. Nittka, R. Otazo, L.D. Rybak, K.T. Block, C. Geppert, D.K. Sodickson, M.P. Recht
Highly Accelerated SEMAC Metal Implant Imaging Using Joint Compressed Sensing and Parallel Imaging
In Proc. Intl. Soc. Mag. Reson. Med. 21 (2013): 2558

J.G. Raya, E. Dettmann, A. Golestani, K.T. Block
in vivo DTI of Articular Cartialge at 3T with a Spin Echo Radial Diffusion Tensor Imaging (RAISED) Sequence
In Proc. Intl. Soc. Mag. Reson. Med. 21 (2013): 3530

R. Grimm, S. Fürst, I. Dregely, S.G. Nekolla, S. Ziegler, S. Bauer, D. Nickel, B. Kiefer, J. Hornegger, M. Schwaiger, K.T. Block
MR-PET Respiration Compensation Using Self-Gated Motion Modeling
In Proc. Intl. Soc. Mag. Reson. Med. 21 (2013): 0829

N. Ben-Eliezer, D.K. Sodickson, K.T. Block
A New Model-Based Technique for Accurate Reconstruction of T2 Relaxation Maps from Fast Spin-Echo Data
In Proc. Intl. Soc. Mag. Reson. Med. 21 (2013): 2453

R. Grimm, S. Bauer, B. Kiefer, J. Hornegger, K.T. Block
Optimal Channel Selection for Respiratory Self-Gating Signals
In Proc. Intl. Soc. Mag. Reson. Med. 21 (2013): 3749

M. Freed, A.P.K. Leite, J. Zhang, M. Moccaldi, K.T. Block, L. Moy, S. Kim
Separation of Benign and Malignant Breast Lesions Using Pharmacokinetic Analysis for a Biopsy Cohort
In Proc. Intl. Soc. Mag. Reson. Med. 21 (2013): 0200

K.T. Block, R. Grimm, L. Feng, R. Otazo, H. Chandarana, D.K. Sodickson
Prototypic Setup for Evaluation of a Compressed-Sensing Technique in Clinical Patient Studies
ISMRM Workshop on Data Sampling & Image Reconstruction 2013, Sedona

K. Sooah, M.J. Kim, K.T. Block, H. Chandarana
Comparison of free-breathing radial 3D fat-suppressed T1-weighted gradient echo (Radial-VIBE) and conventional T1-weighted Cartesian (VIBE) acquisitions in patients undergoing MR enterography at 1.5 T
ARC 2013: 273

H. Chandarana, M. Winfeld, K.T. Block, S. Lala, D. Mazori, E. Giuffrida, R. Sarvis, S. Milla,
Improved Image Quality in Pediatric Abdominopelvic MRI Using Free-breathing Radial 3D Fat-suppressed T1-weighted Gradient-Echo (Radial-VIBE) Sequence as Compared to Conventional T1-weighted Cartesian (Conventional-VIBE) Sequence,
RSNA 2012

M. Larson, P. Weisser, K.T. Block, M. Beeres, R. Bauer, S. Boettger, R. Hammerstingl, T. Vogl,
Free Breathing Radial 3D VIBE Contrast-enhanced MR Imaging—A Time Saving Protocol in Pediatric MR Examinations of Children Under General Anesthesia,
RSNA 2012

R. Bauer, I. Radtke, M. Uecker, S. Zhang, K.T. Block, T. Graf, J.M. Kerl, T. Vogl, M. Larson,
True Real-Time Cardiac MRI with Radial K-Space Sampling in Free Breathing without ECG-synchronization—Improved Image Quality with Iterative Image Reconstruction,
RSNA 2012

X. Wu, E. Raz, K.T. Block, C. Geppert, M. Hagiwara, M. Bruno, G. Fatterpekar,
Radial-VIBE sequence: A viable and potentially superior alternative to conventional fat-suppressed contrast-enhanced T1-weighted studies of the head and neck,
ASHNR 2012

K.T. Block, M. Fenchel,
Simple Method for Attenuation of Streaking Artifacts from Peripheral Intensity Accumulation,
In Proc. Intl. Soc. Mag. Reson. Med. 20 (2012): 2444

L. Feng, H. Chandarana, J. Xu, K.T. Block, D. Sodickson, R. Otazo,
K-T Radial SPARSE-SENSE: Combination of Compressed Sensing and Parallel Imaging with Golden Angle Radial Sampling for Highly Accelerated Volumetric Dynamic MRI,
In Proc. Intl. Soc. Mag. Reson. Med. 20 (2012): 0081

H. Chandarana, L. Feng, K.T. Block, J.P. Stepancic, D. Sodickson, R. Otazo,
Contrast-Enhanced Free-Breathing Perfusion Weighted MR Imaging of the Whole-Liver with High Spatial and Temporal Resolution,
In Proc. Intl. Soc. Mag. Reson. Med. 20 (2012): 4009

H. Chandarana, L. Feng, K.T. Block, A.B. Rosenkrantz, R. Lim, D. Chu, D. Sodickson, R. Otazo,
Free-Breathing Dynamic Contrast-Enhanced MRI of the Liver with Radial Golden-Angle Sampling Scheme and Advanced Compressed-Sensing Reconstruction,
In Proc. Intl. Soc. Mag. Reson. Med. 20 (2012): 4206

S. Kim, L. Feng, L. Moy, M. Moccaldi, K.T. Block, D. Sodickson, R. Otazo,
Highly-Accelerated Golden-Angle Radial Acquisition with Joint Compressed Sensing and Parallel Imaging Reconstruction for Breast DCE-MRI,
In Proc. Intl. Soc. Mag. Reson. Med. 20 (2012): 1468

R. Grimm, K.T. Block, J. Hutter, C. Forman, C. Hintze, B. Kiefer, J. Hornegger,
Self-Gating Reconstructions of Motion and Perfusion for Free-Breathing T1-Weighted DCE-MRI of the Thorax Using 3D Stack-Of-Stars GRE Imaging,
In Proc. Intl. Soc. Mag. Reson. Med. 20 (2012): 0598

R. Grimm, J. Churt, A. Fieselmann, K.T. Block, B. Kiefer, J. Hornegger,
A Digital Perfusion Phantom for T1-Weighted DCE-MRI,
In Proc. Intl. Soc. Mag. Reson. Med. 20 (2012): 2559

D. Nickel, R. Grimm, K.T. Block,
Estimation of Mean Noise Propagation in SENSE for Generation of Optimized Undersampling Patterns,
In Proc. Intl. Soc. Mag. Reson. Med. 20 (2012): 2226

J. Xu, L. Feng, R. Otazo, A. Yang, K.T. Block, B. Srichai, R. Lim, K.A. Mcgorty, J. Reaume, L. Axel, Y. Wang, D. Sodickson,
Feasibility of 5-Minute Comprehensive Cardiac MR Examination Using Highly Accelerated Parallel Imaging and Compressed Sensing,
In Proc. Intl. Soc. Mag. Reson. Med. 20 (2012): 3946

T.C. Chang, M. Nadar, J. Guehring, M. Zenge, K.T. Block, P. Speier, M. Hansen, E. Mueller,
Reconstruction for Dynamic 2D-Radial Cardiac MRI Using Prior Enhanced Compressed Sensing,
In Proc. Intl. Soc. Mag. Reson. Med. 20 (2012): 0080

R. Otazo, L. Feng, H. Chandarana, K.T. Block, L. Axel, D.K. Sodickson,
Combination of Compressed Sensing and Parallel Imaging for Highly-Accelerated Dynamic MRI,
IEEE ISBI 2012: FR-AM1.O4.4

R.W. Bauer, I. Radtke, C. Larson, S. Zhang, K.T. Block, T.G. Graf et al.,
True Real-Time Cardiac MRI in Free Breathing without ECG-Synchronization Using a TrueFISP Sequence with Radial k-Space Sampling,
RSNA 2011: 11011109.

M.C. Larson, R.W. Bauer, J. Kerl, S. Zhang, K.T. Block, M.G. Mack et al.,
Can True Real-Time MR Imaging with Radial k-Space Sampling be as Accurate as Videofluoroscopy in the Evaluation of Velopharyngeal Dysfunction during Speaking and Swallowing without Radiation?,
RSNA 2011: 11015527.

E. Wenkel, C. Geppert, K.T. Block, B. Kiefer, M. Uder, R. Janka,
Real time MR guided wire placement: first results in a closed MR scanner,
ESMRMB 2011: 152.

K.T. Block and M. Uecker,
Simple Method for Adaptive Gradient-Delay Compensation in Radial MRI,
In Proc. Intl. Soc. Mag. Reson. Med. 19 (2011): 2816.

H. Chandarana, A.B. Rosenkrantz, R.P. Lim, D. Kim, D.I. Mossa, K. Arhakis, B. Kiefer, K.T. Block, and V.S. Lee,
Radial K-Space Sampling for 3D Fat-Suppressed Contrast-Enhanced Imaging of the Liver During Free Breathing,
In Proc. Intl. Soc. Mag. Reson. Med. 19 (2011): 2942.

R. Grimm, K.T. Block, B. Kiefer, and J. Hornegger,
Bias Correction for Respiration Detection in Radial 3D Gradient-Echo Imaging,
In Proc. Intl. Soc. Mag. Reson. Med. 19 (2011): 2677.

A. de Oliveira, K.T. Block, and S. Kannengiesser,
2D RF Pulses with Rotating Read Out Direction for Increased FOV with Elevated Central SNR,
In Proc. Intl. Soc. Mag. Reson. Med. 19 (2011): 2792.

T-C. Chang, M.S. Nadar, J. Guehring, M.O. Zenge, K.T. Block, P. Schmitt, and E. Mueller,
Non-Contrast-Enhanced 4D MRA Using Compressed Sensing Reconstruction,
In Proc. Intl. Soc. Mag. Reson. Med. 19 (2011): 1291.

K. Kim, J. Lee, K.T. Block, J. Han, and B. Choi,
Free-breathing dynamic contrast-enhanced (DCE-MRI) of the abdomen at 3.0 T using radial k-space sampling and k-space-weighted image contrast (KWIC) reconstruction: preliminary study,
ECR 2011: B-849.

K.T. Block, M. Uecker and J. Frahm,
Iterative Reconstruction for R2 Mapping Based on Radial Fast Spin-Echo MRI,
In Proc. Intl. Soc. Mag. Reson. Med. 16 (2008): 1432.

K.T. Block, M. Uecker, and J. Frahm,
Suppression of MRI Truncation Artifacts Using Total Variation Constrained Data Extrapolation,
In Proc. Intl. Soc. Mag. Reson. Med. 16 (2008): 1477.

M. Uecker, K.T. Block, and J. Frahm,
Non-linear Inversion with L1-Wavelet Regularization – Application to Autocalibrated Parallel Imaging,
In Proc. Intl. Soc. Mag. Reson. Med. 16 (2008): 1479.

M. Uecker, K.T. Block, and J. Frahm,
An Automatic Stopping Criterion for Iterative MRI Reconstructions,
In Proc. Intl. Soc. Mag. Reson. Med. 16 (2008): 1499.

K.T. Block, A. Karaus, and J. Frahm,
Radial Single-Shot STEAM MRI,
In Proc. Intl. Soc. Mag. Reson. Med. 15 (2007): 1663.

K.T. Block, M. Uecker, and J. Frahm,
Undersampled Radial MRI with Multiple Coils. Iterative Image Reconstruction Using a Total Variation Constraint,
In Proc. Intl. Soc. Mag. Reson. Med. 15 (2007): 145.

M. Uecker, K.T. Block, and J. Frahm,
Parallel Imaging as a Non-linear Inversion Problem – Improved Reconstructions,
In Proc. Intl. Soc. Mag. Reson. Med. 15 (2007): 1740.

K.T. Block, M. Uecker, and J. Frahm,
Iterative Image Reconstruction of Undersampled Radial MRI Data from Multiple Coils,
ISMRM Workshop on Non-Cartesian MRI Sedona 2007, Workshop Syllabus: Poster 41.

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Philanthropic Support

We gratefully acknowledge generous support for radiology research at NYU Langone Medical Center from:
 
• The Big George Foundation
• Raymond and Beverly Sackler
• Bernard and Irene Schwartz

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