- 2023
MemberOpen Access Journal Editor Search Committee, Radiological Society of North America
- 2023
MemberNominating Committee, Society of Cardiovascular Computed Tomography
- 2022 - 2024
ChairSearch Committee for Vice Chair of Academic Affairs, UT Southwestern Medical Center
- 2022
MemberAbdominal Imaging Division Chief Search Committee, UT Southwestern Medical Center
- 2021 - 2022
MemberCardiology Division Chief Search Committee, UT Southwestern Medical Center
- 2019 - 2024
DelegateCT Operations Committee, UT Southwestern Medical Center
- 2019 - 2024
MemberProgram Evaluation Committee for Cardiac Imaging Fellowship, UT Southwestern Medical Center
- 2019 - 2024
MemberClinical Competency Committee for Cardiac Imaging Fellowship, UT Southwestern Medical Center
- 2019 - 2020
MemberMembership Program, Society of Cardiovascular Computed Tomography
- 2018
Co-Editor"SCCT Case of the Month" publication series, Society of Cardiovascular Computed Tomography
- 2017 - present
MemberMembership Committee, Texas Radiological Society
- 2016 - 2024
MemberPediatric Department Academic Progress Committee, UT Southwestern Medical Center
- 2016 - 2021
Specialty ChairAppropriateness Criteria Expert Panels on Cardiac Imaging, American College of Radiology
- 2016 - 2020
Senior ReviewerOnline Longitudinal Assessment, American Board of Radiology
- 2016 - 2019
ChairCardiac Track Refresher Course Committee, Radiological Society of North America
- 2016 - 2017
MemberScientific & Clinical Education Lifelong Learning (SCILL) Committee, American Heart Association
- 2016
MemberEducational Exhibits Awards Committee, Radiological Society of North America
- 2015 - 2024
MemberClinical Competency Committee for Radiology Residency, UT Southwestern Medical Center
- 2015 - 2024
MemberProgram Evaluation Committee for Radiology Residency, UT Southwestern Medical Center
- 2015 - 2020
ChairPublication Committee, North American Society for Cardiovascular Imaging
- 2015 - 2019
ChairCT Operations Committee, UT Southwestern Medical Center
- 2015 - 2018
Co-ChairGuidelines Committee, Society of Cardiovascular Computed Tomography
- 2015 - 2017
MemberSDCT Technical Committee, UT Southwestern Medical Center
- 2015 - 2016
ChairSDCT Steering Committee, UT Southwestern Medical Center
- 2015 - 2016
MemberRadiology Resident Selection Committee, UT Southwestern Medical Center
- 2015
Co-ChairAppropriateness Criteria Chairs Meeting, American College of Radiology
- 2015 - present
MemberPerformance Improvement Committee for Radiology, Parkland Health and Hospital System
- 2014 - 2024
MemberRTR-SDCT Operations Committee, UT Southwestern Medical Center
- 2014 - 2024
MemberClinical Competency Committee for Cardiothoracic Imaging Fellowship, UT Southwestern Medical Center
- 2014 - 2024
MemberMRI Operations Committee, UT Southwestern Medical Center
- 2014 - 2024
MemberRadiology Resident Clinical Scholars Track Committee, UT Southwestern Medical Center
- 2014 - 2018
ChairCT-Operations Committee, Parkland Health & Hospital Systems, UT Southwestern Medical Center
- 2014 - 2015
ChairCT-DOSE taskforce, UT Southwestern Medical Center
- 2013 - 2024
MemberCurriculum Committee, UT Southwestern Medical Center
- 2013 - 2016
MemberCME Review Subcommittee, American Roentgen Ray Society
- 2013 - 2015
PresidentCertification Board of Cardiovascular Computed Tomography, Certification Board of Cardiovascular Computed Tomography
- 2013 - present
MemberDallas County Medical Society
- 2013 - present
MemberTexas Radiological Society
- 2013 - present
MemberTexas Medical Association
- 2012 - 2014
Vice ChairAppropriateness Criteria® Expert Panel on Cardiac Imaging, American College of Radiology
- 2012
ChairCME Committee, Society of Cardiovascular Computed Tomography
- 2011 - 2015
MemberScientific Program Committee, Cardiac Subcommittee, American Roentgen Ray Society
- 2011 - 2013
MemberScientific Program Committee, Cardiac Subcommittee, Radiological Society of North America
- 2011 - 2013
Co-ChairAnnual Meeting Program Committee, Society of Cardiovascular Computed Tomography
- 2011
MemberWriting Group, Multi-Society Guideline on Multimodality Imaging of Thoracic Aortic Disease, American Society of Echocardiography
- 2010 - 2013
ChairRadiology sub-committee, Society of Cardiovascular Computed Tomography
- 2010 - 2011
ChairAbstract Grading Committee, Society of Cardiovascular Computed Tomography
- 2010
MemberCardiac MRCT Program Research Fellowship Selection Committee, Massachusetts General Hospital/Harvard Medical School
- 2010
Official ReviewerACR Appropriateness Criteria Relative Radiation Exposure and Dose (RRL) Subcommittee, American College of Radiology
- 2009 - 2016
MemberCardiac MOC Committee, American Board of Radiology
- 2009 - 2012
MemberInnovation Task Force, American Board of Radiology
- 2009 - 2012
MemberFinance Committee, Society of Cardiovascular Computed Tomography
- 2009 - 2012
MemberRadiation Committee, Society of Cardiovascular Computed Tomography
- 2009 - 2011
MemberAnnual Meeting Program Committee, Society of Cardiovascular Computed Tomography
- 2009 - 2010
MemberQA Committee/Liaison for Cardiovascular Imaging Section, Massachusetts General Hospital/Harvard Medical School
- 2009
EditorCardiovascular Images Newsletter, Massachusetts General Hospital
- 2008 - 2020
MemberAppropriateness Criteria Expert Panel on Cardiac Imaging, American College of Radiology
- 2008 - 2013
MemberCardiac Subcommittee, Scientific Program Committee, Radiological Society of North America
- 2008 - 2011
DirectorBoard of Directors, Society of Cardiovascular Computed Tomography
- 2008 - 2011
Abstract GraderCommittee on Scientific Sessions Program, American Heart Association
- 2008 - 2011
MemberSteering Committee, CT-CATH Trial (Coronary CT Compared to Invasive Angiography Testing in Patients with Suspected Coronary Heart Disease)
- 2008 - 2011
MemberEducation Committee, Society of Cardiovascular Computed Tomography
- 2008 - 2009
MemberResident Selection Committee, Massachusetts General Hospital/Harvard Medical School
- 2008
MemberSteering Committee, MEDIC Trial (Multicenter Evaluation of Coronary Dual Source CTA in Patients with Intermediate Risk of Coronary Artery Stenoses)
- 2008
SecretaryCertification Board, Certification Board of Cardiovascular Computed Tomography
- 2008
MemberEligibility Committee, Certification Board of Cardiovascular Computed Tomography
- 2007 - 2010
MemberRadiology Committee, Society of Cardiovascular Computed Tomography
- 2007 - 2008
Co-organizerEducational Exhibit Case of the Day Exhibits - Cardiac, Radiological Society of North America
- 2007 - 2008
MemberNominating Committee, Society of Cardiovascular Computed Tomography
- 2007 - 2008
MemberSOAR Awards Committee, Society of Cardiovascular Computed Tomography
- 2007
Board MemberBoard of Directors, Certification Board of Cardiovascular Computed Tomography
- 2007
Co-ChairExamination Committee, Certification Board of Cardiovascular Computed Tomography
- 2007
ChairmanExam Development Content Area “Non Coronary Cardiac Disease”, Certification Board of Cardiovascular Computed Tomography
- 2007
MemberGuidelines Writing Committee, Extracranial Carotid and Vertebral Disease Guideline (ECVD GL), a Multi-society committee (ASA / ACC / AHA / AANN / AANS / ACR / ASITN / CNS / SAIP / SCAI / SIR / SVMB); Guidelines Writing Committee
- 2007
ChairmanYoung Investigator Award Selection Committee, Society of Cardiovascular Computed Tomography
- 2007 - present
Abstract ReviewerAnnual Scientific Session, American College of Cardiology
- 2007 - present
Writing Group MemberCardiac MRI model LCD (Local Coverage Determination), Carrier Advisory Committee, American College of Cardiology
- 2006 - 2016
MemberAmerican Roentgen Ray Society
- 2006 - 2015
MemberNew England Roentgen Ray Society
- 2006
MemberCenter for CT Dose Optimization, Support and Education at MGH, Massachusetts General Hospital/Harvard Medical School
- 2006
Expert panel memberContractor Advisory Committee, NIHC-NE
- 2006
Co-ChairCTA-Academy Training Programs, Society of Cardiovascular Computed Tomography
- 2006
Co-ChairGuideline writing committee on Cardiac CT Scanning Recommendations, Society of Cardiovascular Computed Tomography
- 2006
Co-ChairAward Committee, Scientific Sessions, Society of Cardiovascular Computed Tomography
- 2005 - 2007
MemberEducational Evaluation Sub-Committee, American Roentgen Ray Society
- 2005 - 2007
MemberEducation Committee, Society of Thoracic Radiology
- 2005
Clerkship Lecturer and LiaisonHMS Medical Student Core Radiology, Cardiac Imaging Committee, Massachusetts General Hospital/Harvard Medical School
- 2005
MemberProgram Committee, Department of Surgery, University of California Davis Medical Center
- 2005
Co-ChairAwards Committee, International Conference on Cardiac Computed Tomography
- 2005 - present
Founding MemberSociety of Cardiovascular Computed Tomography
- 2005 - present
MemberCardiac Radiology Panel for ‘RadioGraphics’, Radiological Society of North America
- 2004 - 2024
MemberCardiac MRCT Program Research Fellowships, Selection Committee, Harvard Medical School
- 2004 - 2024
MemberProgram Evaluation Committee for Cardiothoracic Imaging Fellowship, UT Southwestern Medical Center
- 2004 - present
MemberSociety for Thoracic Imaging
- 2003 - present
MemberAmerican College of Radiology
- 2001 - 2006
MemberDeutsche Roentgen Gesellschaft
- 2000 - 2004
MemberInternational Society for Magnetic Resonance in Medicine
- 1999 - 2006
MemberSociety of Interventional Radiology
- 1997 - present
MemberRadiological Society of North America