- 2021 - 2023MemberSurgical Supplies and Technology Team, Surgical Committee - Florida, Clinical Practice Committee - Florida 
- 2021Proposal ReviewerCenter for Digital Health 
- 2021Content ExpertEnterprise Radiology Next Generation Speech Platform Project 
- 2020 - presentMemberEnterprise Radiology Artificial Intelligence Subcommittee (ERAIS), Mayo Clinic Committees, Mayo Clinic 
- 2018 - presentFounding Member and FellowSociety for Cardiovacular Magnetic Resonance 
- 2013 - 2015MemberAmerican College of Radiology 
- 2012 - 2018Member  / SecretaryRadiological Society of North America, Research & Education Foundation - Board of Trustees  
- 2012 - 2018SecretaryR&E Foundation Committee, Radiological Society of North America 
- 2011 - 2017MemberAmerican College of Radiology 
- 2011 - 2012MemberR&E Foundation Committee, Radiological Society of North America 
- 2010 - 2018MemberAmerican Heart Association, Council on Cardiovascular Radiology & Intervention  
- 2010 - presentFellowAmerican College of Radiology 
- 2009 - 2014RepresentativeAmerican College of Radiology 
- 2009 - 2013Imaging Co-ChairAmerican College of Radiology 
- 2009 - 2013Instructional Course FacultyAmerican College of Radiology 
- 2009 - 2011Chairman & Question Writer for NonCardiac content of annual CBCCT examCertification Board of Cardiovascular Computed Tomography 
- 2009 - 2011Section ChairCertification Board of Cardiovascular Computed Tomography 
- 2009 - presentFounding Member and FellowSociety of Cardiovascular Computed Tomography 
- 2008 - 2018Chairman  / MemberAmerican College of Radiology Appropriateness Criteria Committee, Expert Panel on Cardiac Imaging 
- 2008 - 2014Instructional Course FacultyAmerican College of Radiology 
- 2008 - 2014Committee MemberAmerican College of Radiology Imaging Network, American College of Radiology 
- 2008 - 2014MemberAmerican College of Radiology 
- 2008 - 2014MemberAmerican College of Radiology 
- 2008 - 2013MemberAmerican College of Radiology 
- 2008 - 2010MemberSociety of Cardiovascular Computed Tomography 
- 2008Reviewer/ConsultantAmerican College of Radiology 
- 2008MemberRadiological Society of North America 
- 2007 - 2011Committee ChairR&E Foundation Committee, Radiological Society of North America 
- 2007 - 2009MemberNorth American Society for Cardiac Imaging - Executive Committee & Board of Directors 
- 2005 - 2008Subcommittee MemberAmerican College of Radiology Computed Tomography Accreditation Program 
- 2005 - 2007Member, CardiacAmerican College of Radiology 
- 2005 - 2007AmbassadorAmerican Heart Association, Council on Cardiovascular Radiology & Intervention  
- 2004 - 2018MemberRadiological Society of North America 
- 2004 - 2007Assembly DelegateAmerican Heart Association, Council on Cardiovascular Radiology & Intervention  
- 2003 - 2010Member  / ChairmanAmerican Heart Association, Council on Cardiovascular Radiology & Intervention  
- 2003 - 2010Committee ChairAmerican Heart Association, Council on Cardiovascular Radiology & Intervention  
- 2001 - 2003Committee ChairAmerican Heart Association, Council on Cardiovascular Radiology & Intervention  
- 2000 - 2006ChairmanInternational Consortium for Standardization in Cardiac CT  
- 2000 - 2006Founder and ChairInternational Consortium for Standardization in Cardiac CT  
- 2000 - 2002MemberAmerican College of Radiology - MRI Accreditation Program 
- 1999 - 2004MemberAmerican College of Radiology 
- 1999 - 2002Subcommittee ChairAmerican College of Radiology 
- 1999 - 2001Chair-Writing GroupAmerican College of Radiology 
- 1998 - 2001RepresentativeAmerican Heart Association, Council on Cardiovascular Radiology & Intervention  
- 1996 - 2018MemberProgram Committee, Radiological Society of North America 
- 1996 - 2011Program Committee MemberSociety for Cardiovascular Magnetic Resonance 
- 1996 - 2001ChairAmerican Heart Association, Council on Cardiovascular Radiology & Intervention  
- 1995 - 2011Abstract ReviewerAmerican College of Cardiology 
- 1995 - 2007Abstract ReviewerInternational Society of Magnetic Resonance in Medicine 
- 1995 - 2001MemberAmerican Heart Association 
- 1994Conference OrganizerInternational Society of Magnetic Resonance in Medicine 
- 1994 - 2009Secretary-TreasurerNorth American Society for Cardiac Imaging - Executive Committee & Board of Directors 
- 1994 - 2001ChairInternational Society of Magnetic Resonance in Medicine 
- 1994 - 1997Cardiac Panel MemberEconomics Committee on Coding and Nomenclature, American College of Radiology; Economics Committee on Coding and Nomenclature 
- 1994 - 1997Section ChairRefresher Course, Radiological Society of North America 
- 1994 - 1997MemberNorth American Society for Cardiovascular Imaging 
- 1994 - 1997Grant Application ReviewerAmerican Heart Association 
- 1994 - presentFellowAmerican College of Cardiology 
- 1993 - 2013Oral Examiner 1993-2013American Board of Radiology 
- 1993 - 2009Chair - Membership CommitteeNorth American Society for Cardiovascular Imaging 
- 1993 - 1995ChairProgram Committee, North American Society for Cardiovascular Imaging 
- 1993 - 1995LiaisonAmerican Heart Association 
- 1993Committee MemberSociety for Magnetic Resonance Imaging 
- 1992 - 2019Abstract ReviewerAmerican Heart Association 
- 1992 - 2010MemberAmerican Heart Association, Council on Cardiovascular Radiology & Intervention  
- 1992 - 1997MemberAmerican Heart Association, Council on Cardiovascular Radiology & Intervention  
- 1991 - 1996Member, Standards CommitteeAmerican College of Radiology 
- 1991 - 1995RepresentativeNorth American Society for Cardiovascular Imaging 
- 1990 - 2007Consultant ReviewerLocal, American Heart Association 
- 1990 - 1996Committee ChairAmerican Heart Association, Council on Cardiovascular Radiology & Intervention  
- 1989 - 1993Committee ChairSociety for Magnetic Resonance Imaging 
- 1989 - presentFellowAmerican Heart Association 
- 1981 - presentRegular MemberAmerican College of Cardiology 
- 1981 - presentRegular MemberAmerican College of Radiology