Publications by authors named "Lawrence L Wald"

100Publications

A portable scanner for magnetic resonance imaging of the brain.

Nat Biomed Eng 2020 Nov 23. Epub 2020 Nov 23.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA.

View Article and Find Full Text PDF
November 2020

Investigating cardiac stimulation limits of MRI gradient coils using electromagnetic and electrophysiological simulations in human and canine body models.

Magn Reson Med 2021 Feb 19;85(2):1047-1061. Epub 2020 Aug 19.

A. A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, Massachusetts, USA.

View Article and Find Full Text PDF
February 2021

Axon diameter index estimation independent of fiber orientation distribution using high-gradient diffusion MRI.

Neuroimage 2020 11 1;222:117197. Epub 2020 Aug 1.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, United States; Harvard Medical School, Boston, MA, United States; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, United States.

View Article and Find Full Text PDF
November 2020

The Path to Parent-Inclusive Conferences.

J Am Coll Radiol 2020 Jul 20. Epub 2020 Jul 20.

Chief of Breast Imaging Service of Memorial Sloan Kettering Cancer Center, New York, New York. Electronic address:

View Article and Find Full Text PDF
July 2020

Individualized SAR calculations using computer vision-based MR segmentation and a fast electromagnetic solver.

Magn Reson Med 2021 Jan 8;85(1):429-443. Epub 2020 Jul 8.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA.

View Article and Find Full Text PDF
January 2021

Corrigendum to "Design and implementation of a low-cost, tabletop MRI scanner for education and research prototyping" [J. Magn. Reson. 310 (2020) 106625].

J Magn Reson 2020 Aug 28;317:106764. Epub 2020 Jun 28.

A. A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA; Harvard Medical School, Boston, MA, USA; Harvard-MIT Division of Health Sciences Technology, Cambridge, MA, USA.

View Article and Find Full Text PDF
August 2020

Evaluation of RF interactions between a 3T birdcage transmit coil and transcranial magnetic stimulation coils using a realistically shaped head phantom.

Magn Reson Med 2020 08 23;84(2):1061-1075. Epub 2020 Jan 23.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Harvard Medical School, Massachusetts General Hospital, Charlestown, Massachusetts.

View Article and Find Full Text PDF
August 2020

Design and implementation of a low-cost, tabletop MRI scanner for education and research prototyping.

J Magn Reson 2020 01 22;310:106625. Epub 2019 Oct 22.

A. A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA; Harvard Medical School, Boston, MA, USA; Harvard-MIT Division of Health Sciences Technology, Cambridge, MA, USA.

View Article and Find Full Text PDF
January 2020

7 Tesla MRI of the ex vivo human brain at 100 micron resolution.

Sci Data 2019 10 30;6(1):244. Epub 2019 Oct 30.

Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Department of Radiology, Charlestown, MA, 02129, USA.

View Article and Find Full Text PDF
October 2019

Optimizing selective stimulation of peripheral nerves with arrays of coils or surface electrodes using a linear peripheral nerve stimulation metric.

J Neural Eng 2020 01 14;17(1):016029. Epub 2020 Jan 14.

A A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, Massachusetts, United States of America. Harvard Medical School, Boston, Massachusetts, United States of America. Computer Assisted Clinical Medicine, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.

View Article and Find Full Text PDF
January 2020

An orthogonal shim coil for 3T brain imaging.

Magn Reson Med 2020 04 21;83(4):1499-1511. Epub 2019 Oct 21.

Department of Medical Biophysics, University of Toronto, Toronto, Canada.

View Article and Find Full Text PDF
April 2020

Individual variation in simulated fetal SAR assessed in multiple body models.

Magn Reson Med 2020 04 18;83(4):1418-1428. Epub 2019 Oct 18.

Harvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts.

View Article and Find Full Text PDF
April 2020

Reducing RF-induced Heating near Implanted Leads through High-Dielectric Capacitive Bleeding of Current (CBLOC).

IEEE Trans Microw Theory Tech 2019 Mar 1;67(3):1265-1273. Epub 2019 Jan 1.

A. A. Martinos Center for Biomedical Imaging, Charlestown MA 02129 USA

View Article and Find Full Text PDF
March 2019

Low-cost and portable MRI.

J Magn Reson Imaging 2020 09 12;52(3):686-696. Epub 2019 Oct 12.

Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, Massachusetts, USA.

View Article and Find Full Text PDF
September 2020

High-gradient diffusion MRI reveals distinct estimates of axon diameter index within different white matter tracts in the in vivo human brain.

Brain Struct Funct 2020 May 28;225(4):1277-1291. Epub 2019 Sep 28.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.

View Article and Find Full Text PDF
May 2020

Probabilistic Structural Atlas of the Inferior and Superior Colliculi, Medial and Lateral Geniculate Nuclei and Superior Olivary Complex in Humans Based on 7 Tesla MRI.

Front Neurosci 2019 7;13:764. Epub 2019 Aug 7.

Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, MGH and Harvard Medical School, Boston, MA, United States.

View Article and Find Full Text PDF
August 2019

Ultimate MRI.

Authors:
Lawrence L Wald

J Magn Reson 2019 09 9;306:139-144. Epub 2019 Jul 9.

Athinoula A. Martinos Center for Biomedical Imaging, Dept. of Radiology, Harvard Medical School, Massachusetts General Hospital, Charlestown, MA, USA; Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Cambridge, MA, USA. Electronic address:

View Article and Find Full Text PDF
September 2019

The MR Cap: A single-sided MRI system designed for potential point-of-care limited field-of-view brain imaging.

Magn Reson Med 2019 11 23;82(5):1946-1960. Epub 2019 Jun 23.

Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, Massachusetts.

View Article and Find Full Text PDF
November 2019

Reconfigurable MRI technology for low-SAR imaging of deep brain stimulation at 3T: Application in bilateral leads, fully-implanted systems, and surgically modified lead trajectories.

Neuroimage 2019 10 13;199:18-29. Epub 2019 May 13.

Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA; Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, IL, USA. Electronic address:

View Article and Find Full Text PDF
October 2019

Dependence of resting-state fMRI fluctuation amplitudes on cerebral cortical orientation relative to the direction of B0 and anatomical axes.

Neuroimage 2019 08 17;196:337-350. Epub 2019 Apr 17.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Harvard Medical School, Massachusetts General Hospital, 149 13th St., Charlestown, Boston, MA 02129, USA; Harvard-Massachusetts Institute of Technology, Division of Health Sciences and Technology, Cambridge, MA, USA. Electronic address:

View Article and Find Full Text PDF
August 2019

Phase-matched virtual coil reconstruction for highly accelerated diffusion echo-planar imaging.

Neuroimage 2019 07 3;194:291-302. Epub 2019 Apr 3.

Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA; Department of Radiology, Harvard Medical School, Boston, MA, USA.

View Article and Find Full Text PDF
July 2019

Age-related alterations in axonal microstructure in the corpus callosum measured by high-gradient diffusion MRI.

Neuroimage 2019 05 18;191:325-336. Epub 2019 Feb 18.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA; Harvard Medical School, Boston, MA, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA.

View Article and Find Full Text PDF
May 2019

Highly-accelerated volumetric brain examination using optimized wave-CAIPI encoding.

J Magn Reson Imaging 2019 09 8;50(3):961-974. Epub 2019 Feb 8.

Department of Radiology, A. A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts, USA.

View Article and Find Full Text PDF
September 2019

Echo planar time-resolved imaging (EPTI).

Magn Reson Med 2019 06 3;81(6):3599-3615. Epub 2019 Feb 3.

Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts.

View Article and Find Full Text PDF
June 2019

Intracortical smoothing of small-voxel fMRI data can provide increased detection power without spatial resolution losses compared to conventional large-voxel fMRI data.

Neuroimage 2019 04 25;189:601-614. Epub 2019 Jan 25.

Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Boston, MA, USA; Department of Radiology, Harvard Medical School, Boston, MA, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA.

View Article and Find Full Text PDF
April 2019

The 'virtual DBS population': five realistic computational models of deep brain stimulation patients for electromagnetic MR safety studies.

Phys Med Biol 2019 02 4;64(3):035021. Epub 2019 Feb 4.

Radiology, Massachusetts General Hospital, Charlestown, MA, United States of America. Harvard Medical School, Boston, MA, United States of America. Author to whom any correspondence should be addressed.

View Article and Find Full Text PDF
February 2019

Comparision of new element designs for combined RF-Shim arrays at 7 T.

Concepts Magn Reson Part B Magn Reson Eng 2018 Feb 7;48B(1). Epub 2018 Jun 7.

Department of Radiology, Stanford University, Stanford, California, USA., Grant sponsor: NIH K99 EB24341., Grant sponsor: NIH P41 EB015891., Grant sponsor: NSERC., Grant sponsor: BWF.

View Article and Find Full Text PDF
February 2018

Sensitivity analysis of neurodynamic and electromagnetic simulation parameters for robust prediction of peripheral nerve stimulation.

Phys Med Biol 2018 12 19;64(1):015005. Epub 2018 Dec 19.

Computer Assisted Clinical Medicine, Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany. Author to whom any correspondence should be addressed.

View Article and Find Full Text PDF
December 2018

Tilted-CAIPI for highly accelerated distortion-free EPI with point spread function (PSF) encoding.

Magn Reson Med 2019 01 5;81(1):377-392. Epub 2018 Sep 5.

A. A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, Massachusetts.

View Article and Find Full Text PDF
January 2019

Prediction of peripheral nerve stimulation thresholds of MRI gradient coils using coupled electromagnetic and neurodynamic simulations.

Magn Reson Med 2019 01 9;81(1):686-701. Epub 2018 Aug 9.

Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, Massachusetts.

View Article and Find Full Text PDF
January 2019

A comprehensive diffusion MRI dataset acquired on the MGH Connectome scanner in a biomimetic brain phantom.

Data Brief 2018 Jun 12;18:334-339. Epub 2018 Mar 12.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 149 Thirteenth Street, Suite 2301, Charlestown, MA, United States.

View Article and Find Full Text PDF
June 2018

Changes in the specific absorption rate (SAR) of radiofrequency energy in patients with retained cardiac leads during MRI at 1.5T and 3T.

Magn Reson Med 2019 01 12;81(1):653-669. Epub 2018 Jun 12.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts.

View Article and Find Full Text PDF
January 2019

Magnetic Resonance Imaging technology-bridging the gap between noninvasive human imaging and optical microscopy.

Curr Opin Neurobiol 2018 06 11;50:250-260. Epub 2018 May 11.

Athinoula A. Martinos Center for Biomedical Imaging, Dept. of Radiology, Harvard Medical School, Massachusetts General Hospital, Charlestown, MA, USA; Harvard-Massachusetts Institute of Technology, Division of Health Sciences and Technology, Cambridge, MA, USA.

View Article and Find Full Text PDF
June 2018

Design of sparse Halbach magnet arrays for portable MRI using a genetic algorithm.

IEEE Trans Magn 2018 Jan 23;54(1). Epub 2017 Oct 23.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA.

View Article and Find Full Text PDF
January 2018

Rodent Cerebral Blood Volume (CBV) changes during hypercapnia observed using Magnetic Particle Imaging (MPI) detection.

Neuroimage 2018 09 5;178:713-720. Epub 2018 May 5.

A. A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA, USA; Harvard-MIT Division of Health Sciences Technology, Cambridge, MA, USA.

View Article and Find Full Text PDF
September 2018

Realistic modeling of deep brain stimulation implants for electromagnetic MRI safety studies.

Phys Med Biol 2018 05 4;63(9):095015. Epub 2018 May 4.

Athinoula A Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States of America. Harvard Medical School, Boston, MA, United States of America.

View Article and Find Full Text PDF
May 2018

Oxytocin attenuates trust as a subset of more general reinforcement learning, with altered reward circuit functional connectivity in males.

Neuroimage 2018 07 25;174:35-43. Epub 2018 Feb 25.

Department of Biomedical Engineering, Stony Brook University School of Medicine, Stony Brook, NY, 11794, USA; Department of Radiology, A.A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, 02129, USA; Harvard Medical School, Boston, MA, 02115, USA. Electronic address:

View Article and Find Full Text PDF
July 2018

Validation of diffusion MRI estimates of compartment size and volume fraction in a biomimetic brain phantom using a human MRI scanner with 300 mT/m maximum gradient strength.

Neuroimage 2018 11 12;182:469-478. Epub 2018 Jan 12.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, United States.

View Article and Find Full Text PDF
November 2018

Improving parallel imaging by jointly reconstructing multi-contrast data.

Magn Reson Med 2018 08 10;80(2):619-632. Epub 2018 Jan 10.

Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, Massachusetts, USA.

View Article and Find Full Text PDF
August 2018

Pushing the spatio-temporal limits of MRI and fMRI.

Neuroimage 2018 01;164:1-3

A. A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA 02129, USA; Harvard Medical School, Boston, MA, USA. Electronic address:

View Article and Find Full Text PDF
January 2018

3D MR fingerprinting with accelerated stack-of-spirals and hybrid sliding-window and GRAPPA reconstruction.

Neuroimage 2017 11 24;162:13-22. Epub 2017 Aug 24.

Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA; Department of Radiology, Harvard Medical School, Boston, MA, USA.

View Article and Find Full Text PDF
November 2017

Design analysis of an MPI human functional brain scanner.

Int J Magn Part Imaging 2017 23;3(1). Epub 2017 Mar 23.

MGH-HST A.A. Martinos Center for Biomedical Imaging, Dept. of Radiology, Massachusetts General Hospital, Charlestown, MA, USA.

View Article and Find Full Text PDF
March 2017

Predicting Magnetostimulation Thresholds in the Peripheral Nervous System using Realistic Body Models.

Sci Rep 2017 07 13;7(1):5316. Epub 2017 Jul 13.

Martinos Center for Biomedical Imaging, Dept. of Radiology, Massachusetts General Hospital, Charlestown, USA.

View Article and Find Full Text PDF
July 2017

In vivo B field shimming methods for MRI at 7T.

Neuroimage 2018 03 7;168:71-87. Epub 2017 Jun 7.

A. A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA 02129, United States; Harvard Medical School, Boston, MA, United States.

View Article and Find Full Text PDF
March 2018

Computation of ultimate SAR amplification factors for radiofrequency hyperthermia in non-uniform body models: impact of frequency and tumour location.

Int J Hyperthermia 2018 02 11;34(1):87-100. Epub 2017 May 11.

a Martinos Center for Biomedical Imaging, Department of Radiology , Massachusetts General Hospital , Charlestown , MA , USA.

View Article and Find Full Text PDF
February 2018

A probabilistic template of human mesopontine tegmental nuclei from in vivo 7T MRI.

Neuroimage 2018 04 3;170:222-230. Epub 2017 May 3.

Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States. Electronic address:

View Article and Find Full Text PDF
April 2018

Simultaneous Time Interleaved MultiSlice (STIMS) for Rapid Susceptibility Weighted acquisition.

Neuroimage 2017 07 20;155:577-586. Epub 2017 Apr 20.

Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, USA; Department of Radiology, Harvard Medical School, Boston, MA, USA; Harvard-MIT Health Sciences and Technology, MIT, Cambridge, MA, USA.

View Article and Find Full Text PDF
July 2017

Improved magnetic resonance fingerprinting reconstruction with low-rank and subspace modeling.

Magn Reson Med 2018 02 15;79(2):933-942. Epub 2017 Apr 15.

Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts, USA.

View Article and Find Full Text PDF
February 2018

Improved 7 Tesla resting-state fMRI connectivity measurements by cluster-based modeling of respiratory volume and heart rate effects.

Neuroimage 2017 06 6;153:262-272. Epub 2017 Apr 6.

Institute for Systems and Robotics - Lisboa and Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal. Electronic address:

View Article and Find Full Text PDF
June 2017

Reduction of across-run variability of temporal SNR in accelerated EPI time-series data through FLEET-based robust autocalibration.

Neuroimage 2017 05 20;152:348-359. Epub 2017 Feb 20.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Harvard Medical School, Massachusetts General Hospital, Charlestown, MA, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA.

View Article and Find Full Text PDF
May 2017

Wave-CAIPI for highly accelerated MP-RAGE imaging.

Magn Reson Med 2018 Jan 20;79(1):401-406. Epub 2017 Feb 20.

Department of Radiology, A. A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts, USA.

View Article and Find Full Text PDF
January 2018

HIgh b-value and high Resolution Integrated Diffusion (HIBRID) imaging.

Neuroimage 2017 04 7;150:162-176. Epub 2017 Feb 7.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Harvard Medical School, Massachusetts General Hospital, Charlestown, MA, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA. Electronic address:

View Article and Find Full Text PDF
April 2017

Organization of high-level visual cortex in human infants.

Nat Commun 2017 01 10;8:13995. Epub 2017 Jan 10.

Department of Brain and Cognitive Sciences and McGovern Institute, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

View Article and Find Full Text PDF
January 2017

Impacting the effect of fMRI noise through hardware and acquisition choices - Implications for controlling false positive rates.

Neuroimage 2017 07 28;154:15-22. Epub 2016 Dec 28.

Athinoula A. Martinos Center for Biomedical Imaging, Dept. of Radiology, Harvard Medical School, Massachusetts General Hospital, Charlestown, MA, USA; Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Cambridge, MA, USA.

View Article and Find Full Text PDF
July 2017

Use of pattern recognition for unaliasing simultaneously acquired slices in simultaneous multislice MR fingerprinting.

Magn Reson Med 2017 11 26;78(5):1870-1876. Epub 2016 Dec 26.

Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, USA.

View Article and Find Full Text PDF
November 2017

Construction and modeling of a reconfigurable MRI coil for lowering SAR in patients with deep brain stimulation implants.

Neuroimage 2017 02 21;147:577-588. Epub 2016 Dec 21.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA.

View Article and Find Full Text PDF
February 2017

The ultimate signal-to-noise ratio in realistic body models.

Magn Reson Med 2017 11 4;78(5):1969-1980. Epub 2016 Dec 4.

Martinos Center for Biomedical Imaging, Dept. of Radiology, Massachusetts General Hospital, Charlestown, Massachusetts, USA.

View Article and Find Full Text PDF
November 2017

Local SAR near deep brain stimulation (DBS) electrodes at 64 and 127 MHz: A simulation study of the effect of extracranial loops.

Magn Reson Med 2017 10 31;78(4):1558-1565. Epub 2016 Oct 31.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, USA.

View Article and Find Full Text PDF
October 2017

Autocalibrated wave-CAIPI reconstruction; Joint optimization of k-space trajectory and parallel imaging reconstruction.

Magn Reson Med 2017 09 21;78(3):1093-1099. Epub 2016 Oct 21.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, Massachusetts, USA.

View Article and Find Full Text PDF
September 2017

Erratum to an anatomically realistic temperature phantom for radiofrequency heating measurements (Magn Reson Med 2015;73:442-450).

Magn Reson Med 2016 11 9;76(5):1642. Epub 2016 Sep 9.

A.A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts, USA.

View Article and Find Full Text PDF
November 2016

Single-step quantitative susceptibility mapping with variational penalties.

NMR Biomed 2017 Apr 22;30(4). Epub 2016 Jun 22.

A. A. Martinos Center for Biomedical Imaging, Department of Radiology; Massachusetts General Hospital, Charlestown, MA, USA.

View Article and Find Full Text PDF
April 2017

Simultaneous multislice magnetic resonance fingerprinting (SMS-MRF) with direct-spiral slice-GRAPPA (ds-SG) reconstruction.

Magn Reson Med 2017 05 25;77(5):1966-1974. Epub 2016 May 25.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, Massachusetts, USA.

View Article and Find Full Text PDF
May 2017

Signal Fluctuation Sensitivity: An Improved Metric for Optimizing Detection of Resting-State fMRI Networks.

Front Neurosci 2016 4;10:180. Epub 2016 May 4.

Department of Biomedical Engineering, Stony Brook University School of MedicineStony Brook, NY, USA; Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General HospitalCharlestown, MA, USA; Department of Radiology, Harvard Medical SchoolBoston, MA, USA; McGovern Institute for Brain Research at MIT, Massachusetts Institute of TechnologyBoston, MA, USA.

View Article and Find Full Text PDF
May 2016

Transmit Array Spatial Encoding (TRASE) using broadband WURST pulses for RF spatial encoding in inhomogeneous B0 fields.

J Magn Reson 2016 07 8;268:36-48. Epub 2016 Apr 8.

A.A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA 02129, United States; Harvard Medical School, Boston, MA, United States.

View Article and Find Full Text PDF
July 2016

In vivo functional connectome of human brainstem nuclei of the ascending arousal, autonomic, and motor systems by high spatial resolution 7-Tesla fMRI.

MAGMA 2016 Jun 28;29(3):451-62. Epub 2016 Apr 28.

Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Building 149, Room 2301, 13th Street, Charlestown, Boston, MA, 02129, USA.

View Article and Find Full Text PDF
June 2016

Automatic cortical surface reconstruction of high-resolution T1 echo planar imaging data.

Neuroimage 2016 07 11;134:338-354. Epub 2016 Apr 11.

Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA; Department of Radiology, Harvard Medical School, Boston, MA, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA.

View Article and Find Full Text PDF
July 2016

Feasibility of using linearly polarized rotating birdcage transmitters and close-fitting receive arrays in MRI to reduce SAR in the vicinity of deep brain simulation implants.

Magn Reson Med 2017 04 5;77(4):1701-1712. Epub 2016 Apr 5.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts, USA.

View Article and Find Full Text PDF
April 2017

Neuroimaging brainstem circuitry supporting cardiovagal response to pain: a combined heart rate variability/ultrahigh-field (7 T) functional magnetic resonance imaging study.

Philos Trans A Math Phys Eng Sci 2016 May;374(2067)

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milano, Italy.

View Article and Find Full Text PDF
May 2016

The pulsatility volume index: an indicator of cerebrovascular compliance based on fast magnetic resonance imaging of cardiac and respiratory pulsatility.

Philos Trans A Math Phys Eng Sci 2016 May;374(2067)

Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Building 149, 13th Street, Charlestown, Boston, MA 02129, USA.

View Article and Find Full Text PDF
May 2016

Globally conditioned Granger causality in brain-brain and brain-heart interactions: a combined heart rate variability/ultra-high-field (7 T) functional magnetic resonance imaging study.

Philos Trans A Math Phys Eng Sci 2016 May;374(2067)

Medical Physics Section, Department of Biomedicine and Prevention, University of Rome 'Tor Vergata', Rome, Italy Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA.

View Article and Find Full Text PDF
May 2016

Characterization of Axonal Disease in Patients with Multiple Sclerosis Using High-Gradient-Diffusion MR Imaging.

Radiology 2016 07 9;280(1):244-51. Epub 2016 Feb 9.

From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th St, Charlestown, MA 02129 (S.Y.H., A.N., T.W., L.L.W.); Department of Neurology, Massachusetts General Hospital, Boston, Mass (S.M.T., E.C.K.); and Richard M. Lucas Center for Imaging, Department of Radiology, Stanford University, Stanford, Calif (J.A.M.).

View Article and Find Full Text PDF
July 2016

Efficacy and Safety of Pedunculopontine Nuclei (PPN) Deep Brain Stimulation in the Treatment of Gait Disorders: A Meta-Analysis of Clinical Studies.

Can J Neurol Sci 2016 Jan;43(1):120-6

1Athinoula A. Martinos Center for Biomedical Imaging,Department of Radiology,Massachusetts General Hospital,Boston,MA.

View Article and Find Full Text PDF
January 2016

Coil-to-coil physiological noise correlations and their impact on functional MRI time-series signal-to-noise ratio.

Magn Reson Med 2016 12 12;76(6):1708-1719. Epub 2016 Jan 12.

Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Harvard Medical School, Massachusetts General Hospital, Charlestown, Massachusetts, USA.

View Article and Find Full Text PDF
December 2016