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Author Details

Karl G Helmer
Massachusetts General Hospital and Harvard Medical School
1991
56
27
PMIDPaper TitleJournal TitlePublished Year
36815663Placental growth factor as a sensitive biomarker for vascular cognitive impairment.Alzheimers Dement2023
37840499Multi-Site Cross-Site Inter-Rater and Test-Retest Reliability and Construct Validity of the MarkVCID White Matter Hyperintensity Growth and Regression Protocol.J Alzheimers Dis2023
36815663Placental growth factor as a sensitive biomarker for vascular cognitive impairment.Alzheimers Dement2023
37307817Cross-Vendor Test-Retest Validation of Diffusion Tensor Image Analysis along the Perivascular Space (DTI-ALPS) for Evaluating Glymphatic System Function.Aging Dis2023
37236211Neuroimaging standards for research into small vessel disease-advances since 2013.Lancet Neurol2023
37533796NIDM-Terms: community-based terminology management for improved neuroimaging dataset descriptions and query.Front Neuroinform2023
37162975Transformer based deep learning denoising of single and multi-delay 3D Arterial Spin Labeling.medRxiv2023
37840499Multi-Site Cross-Site Inter-Rater and Test-Retest Reliability and Construct Validity of the MarkVCID White Matter Hyperintensity Growth and Regression Protocol.J Alzheimers Dis2023
37533796NIDM-Terms: community-based terminology management for improved neuroimaging dataset descriptions and query.Front Neuroinform2023
37307817Cross-Vendor Test-Retest Validation of Diffusion Tensor Image Analysis along the Perivascular Space (DTI-ALPS) for Evaluating Glymphatic System Function.Aging Dis2023
37236211Neuroimaging standards for research into small vessel disease-advances since 2013.Lancet Neurol2023
37162975Transformer based deep learning denoising of single and multi-delay 3D Arterial Spin Labeling.medRxiv2023
36523847MRI free water as a biomarker for cognitive performance: Validation in the MarkVCID consortium.Alzheimers Dement (Amst)2022
35382232Instrumental validation of free water, peak-width of skeletonized mean diffusivity, and white matter hyperintensities: MarkVCID neuroimaging kits.Alzheimers Dement (Amst)2022
36523847MRI free water as a biomarker for cognitive performance: Validation in the MarkVCID consortium.Alzheimers Dement (Amst)2022
35382232Instrumental validation of free water, peak-width of skeletonized mean diffusivity, and white matter hyperintensities: MarkVCID neuroimaging kits.Alzheimers Dement (Amst)2022
33480157MarkVCID cerebral small vessel consortium: II. Neuroimaging protocols.Alzheimers Dement2021
33480172MarkVCID cerebral small vessel consortium: I. Enrollment, clinical, fluid protocols.Alzheimers Dement2021
33480157MarkVCID cerebral small vessel consortium: II. Neuroimaging protocols.Alzheimers Dement2021
34826595Multi-vendor and multisite evaluation of cerebrovascular reactivity mapping using hypercapnia challenge.Neuroimage2021
34826595Multi-vendor and multisite evaluation of cerebrovascular reactivity mapping using hypercapnia challenge.Neuroimage2021
33480172MarkVCID cerebral small vessel consortium: I. Enrollment, clinical, fluid protocols.Alzheimers Dement2021
32186207Serum Neurosteroid Levels Are Associated With Cortical Thickness in Individuals Diagnosed With Posttraumatic Stress Disorder and History of Mild Traumatic Brain Injury.Clin EEG Neurosci2020
32186207Serum Neurosteroid Levels Are Associated With Cortical Thickness in Individuals Diagnosed With Posttraumatic Stress Disorder and History of Mild Traumatic Brain Injury.Clin EEG Neurosci2020
29568257Characterization of Diffusion Metric Map Similarity in Data From a Clinical Data Repository Using Histogram Distances.Front Neurosci2018
29568257Characterization of Diffusion Metric Map Similarity in Data From a Clinical Data Repository Using Histogram Distances.Front Neurosci2018
25940607Demonstration of nonlinearity bias in the measurement of the apparent diffusion coefficient in multicenter trials.Magn Reson Med2016
25940607Demonstration of nonlinearity bias in the measurement of the apparent diffusion coefficient in multicenter trials.Magn Reson Med2016
27350723Multi-site Study of Diffusion Metric Variability: Characterizing the Effects of Site, Vendor, Field Strength, and Echo Time using the Histogram Distance.Proc SPIE Int Soc Opt Eng2016
27330240Multi-site study of diffusion metric variability: effects of site, vendor, field strength, and echo time on regions-of-interest and histogram-bin analyses.Proc SPIE Int Soc Opt Eng2016
27922621Sharing brain mapping statistical results with the neuroimaging data model.Sci Data2016
28105469QIN DAWG Validation of Gradient Nonlinearity Bias Correction Workflow for Quantitative Diffusion-Weighted Imaging in Multicenter Trials.Tomography2016
28105469QIN DAWG Validation of Gradient Nonlinearity Bias Correction Workflow for Quantitative Diffusion-Weighted Imaging in Multicenter Trials.Tomography2016
27922621Sharing brain mapping statistical results with the neuroimaging data model.Sci Data2016
27330240Multi-site study of diffusion metric variability: effects of site, vendor, field strength, and echo time on regions-of-interest and histogram-bin analyses.Proc SPIE Int Soc Opt Eng2016
27350723Multi-site Study of Diffusion Metric Variability: Characterizing the Effects of Site, Vendor, Field Strength, and Echo Time using the Histogram Distance.Proc SPIE Int Soc Opt Eng2016
24471841Hockey Concussion Education Project, Part 3. White matter microstructure in ice hockey players with a history of concussion: a diffusion tensor imaging study.J Neurosurg2014
25280091The Sport Concussion Education Project. A brief report on an educational initiative: from concept to curriculum.J Neurosurg2014
24490839Hockey Concussion Education Project, Part 1. Susceptibility-weighted imaging study in male and female ice hockey players over a single season.J Neurosurg2014
24490785Hockey Concussion Education Project, Part 2. Microstructural white matter alterations in acutely concussed ice hockey players: a longitudinal free-water MRI study.J Neurosurg2014
24471841Hockey Concussion Education Project, Part 3. White matter microstructure in ice hockey players with a history of concussion: a diffusion tensor imaging study.J Neurosurg2014
25280091The Sport Concussion Education Project. A brief report on an educational initiative: from concept to curriculum.J Neurosurg2014
24490839Hockey Concussion Education Project, Part 1. Susceptibility-weighted imaging study in male and female ice hockey players over a single season.J Neurosurg2014
24490785Hockey Concussion Education Project, Part 2. Microstructural white matter alterations in acutely concussed ice hockey players: a longitudinal free-water MRI study.J Neurosurg2014
23727024Towards structured sharing of raw and derived neuroimaging data across existing resources.Neuroimage2013
23727024Towards structured sharing of raw and derived neuroimaging data across existing resources.Neuroimage2013
22270354Tâ¿¿* mapping and Bâ¿¿ orientation-dependence at 7 T reveal cyto- and myeloarchitecture organization of the human cortex.Neuroimage2012
22438191A review of magnetic resonance imaging and diffusion tensor imaging findings in mild traumatic brain injury.Brain Imaging Behav2012
22493576Data sharing in neuroimaging research.Front Neuroinform2012
22270354Tâ¿¿* mapping and Bâ¿¿ orientation-dependence at 7 T reveal cyto- and myeloarchitecture organization of the human cortex.Neuroimage2012
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Collaborators

Massachusetts General Hospital
Co-authored papers 9
Georgia State University
Co-authored papers 6
University of California Davis
Co-authored papers 6
Stevens Neuroimaging and Informatics Institute, University of Southern California
Co-authored papers 5
Change Your Brain Change Your Life Foundation
Co-authored papers 5
UCSF Weill Institute for Neurosciences, University of California san francisco
Co-authored papers 4
Massachusetts Institute of Technology
Co-authored papers 4
University of Kentucky
Co-authored papers 3
McGill University
Co-authored papers 3
Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital
Co-authored papers 3
Johns Hopkins University School of Medicine
Co-authored papers 3
Boston University, Harvard Medical School, Kent Ridge Digital Laboratories, Massachusetts Institute of Technology, National University of Singapore
Co-authored papers 3
Center for Health Sciences
Co-authored papers 2
Co-authored papers 2
Stanford University
Co-authored papers 2
Cumming School of Medicine, University of Calgary
Co-authored papers 2
Spaulding Rehabilitation Hospital, Harvard Medical School
Co-authored papers 2
Co-authored papers 2
Co-authored papers 2
Co-authored papers 2
Massachusetts General Hospital, Harvard Medical School
Co-authored papers 2
University of California Irvine
Co-authored papers 2
University of Southern California's Information Sciences Institute (ISI)
Co-authored papers 2
Argonne National Laboratory
Co-authored papers 1
College of Public Health and Health Professions, University of Florida
Co-authored papers 1
University of Massachusetts Chan Medical School
Co-authored papers 1
University College London
Co-authored papers 1
university of california san diego
Co-authored papers 1
University of Iowa
Co-authored papers 1
University of Oxford
Co-authored papers 1