About

Expanded from the Narrative Report on my Harvard Faculty of Medicine curriculum vitae, dated July 21, 2026, and brought forward through the Lahey appointment. First person, as that CV asks.

I am grateful for the opportunity to practice academic cardiovascular imaging alongside an elite team.

I am a cardiovascular radiologist and Associate Professor of Radiology at Harvard Medical School. From October 2026 I will serve as Executive Vice Chair of Radiology at Lahey Hospital & Medical Center. Until then I remain at Massachusetts General Hospital and Mass General Brigham, most recently as Academic Director of Cardiovascular Imaging, Associate Chair of Operations Analytics, and Medical Director of Clinical Operations for Integrated Imaging Services.

Path

I trained first as a manager and then as a physician. A B.S. in management (1998) and an M.B.A. in health systems management (1999) at Case Western Reserve University and the Weatherhead School of Management came before the M.D. at Case Western Reserve in 2003. Internship was a transitional year at the University of Pittsburgh Medical Center. Diagnostic radiology residency was at The Western Pennsylvania Hospital, where I was chief resident in 2007. I came to Massachusetts General Hospital in 2008 for a cardiac imaging fellowship, and I stayed.

Harvard appointments followed the usual ladder: Instructor in Radiology in 2009, Assistant Professor in 2014, Associate Professor in 2020. Hospital titles moved in parallel from clinical assistant to assistant radiologist to radiologist in the Department of Diagnostic Radiology. The work has always been the same problem in different rooms: how to make advanced cardiac CT and MRI accurate, safe, available, and teachable.

Research

My research began with myocardial stress perfusion CT, which extends the benefits of cardiac CT to a more diseased patient population by increasing accuracy and specificity. Related work tackled the old contraindications of cardiac CT — arrhythmia and tachycardia — while reducing radiation dose. Systolic-phase imaging, prospective triggering, dual-source and high-pitch acquisition, automated tube potential, and iterative reconstruction were never side projects. They were the conditions that made a clinical service possible.

Later work focused on re-engineering clinical workflows so that quality and efficiency would scale, and so that advanced cardiac imaging would reach a larger population. We explored CTA in the emergency department and in diagnoses that were then still novel for the method, including spontaneous coronary artery dissection and chronic total coronary occlusion. I led a randomized trial comparing transdermal and sublingual nitroglycerin for coronary vasodilation before CTA. Functional imaging — stress and rest CT perfusion, CT-FFR, delayed-enhancement CT, CT–fluoroscopy fusion for CTO PCI — stayed in the program as the anatomic examination learned to answer physiologic questions.

A second, quieter pillar is cardiac MRI and myocardial disease: hypertrophic cardiomyopathy, sarcoidosis, late gadolinium enhancement after arrest, nonischemic cardiomyopathy, and the practical work of protocol and access. Vascular imaging — aorta, veins, CTA and MRA, ferumoxytol when kidneys will not tolerate gadolinium — runs alongside the cardiac work rather than beneath it.

Ongoing NIH-funded collaboration with Mbarara University of Science and Technology in Uganda includes a large cross-sectional study of coronary atherosclerosis in people with HIV in rural sub-Saharan Africa, and program-building at MUST. That work also produced an unexpected conclusion: rates of coronary artery disease differed from what had been predicted in the region, regardless of HIV status.

The papers themselves are grouped on a separate catalog. This page is the story, not the list.

Teaching

My mission is to distill the complex world of cardiovascular imaging for trainees and referring colleagues, so that the benefits reach patients. As Program Director of the Cardiac Imaging Fellowship from 2013 to 2018 I oversaw a doubling of program size and improved local educational offerings. We liaise with MGH’s adult congenital heart disease, structural heart disease, hypertrophic cardiomyopathy, women’s health, MINOCA and spontaneous coronary dissection, chronic total occlusion, electrophysiology, and pulmonary embolism response teams. Daily readout in cardiac CT, cardiac MRI, and vascular imaging has been the constant since 2010.

Nationally I have directed courses on myocardial CT perfusion, functional imaging, and coronary CT angiography, and I chaired the planning committee for the Annual Scientific Meeting of the Society of Cardiovascular Computed Tomography. I have also led and served on scientific and educational abstract committees at the American Roentgen Ray Society and the Radiological Society of North America, and served as a volunteer on the American Board of Radiology’s cardiovascular core exam committee. Internationally I created and implemented a cardiovascular imaging curriculum for the growing radiology residency at MUST.

Building a service

I served as Director of Clinical Cardiac MRI and later of Clinical Cardiac Imaging, and in 2015 we formed the Cardiovascular Imaging Division at MGH. As Service Chief I oversaw the integration of advanced peripheral and cardiac noninvasive CT, MRI, and peripheral vascular ultrasound. As Division Chief I tried to hold a standard of clinical excellence and a culture of safety, and to document the innovations as clinical research rather than leaving them in local protocol books.

At the time I wrote the Harvard narrative I led fourteen subspecialty staff radiologists and cardiologists and five full-time trainees in a high-volume division. We implemented programs that reduced cardiac CTA radiation doses by more than 80 percent, improved availability of cardiac MRI from a wait of more than two months to two days, and instituted continuous quality improvement in all domains. The emergency-department cardiac CT service runs 365 days a year and has operated continuously for more than eleven years.

During my tenure the service grew from one hospital and one CT scanner to six hospitals and eleven sites in two states, spanning a radius of more than 150 miles, with active cardiac CT programs at five hospitals and ten sites, and a similar but smaller distributed cardiac MRI footprint. The point was not size. It was to offer subspecialty care close to where patients live and work. Those efforts are in a series of publications on clinical protocols, dose-reduction algorithms, and process refinement, in the hope that the experience might help others do the same.

From June 2023 I helped lead the radiology department as Associate Chair of Operations Analytics, with oversight of operational and quality data to support scaling across Mass General Brigham. In 2026 I added Medical Director, Clinical Operations, for Integrated Imaging Services — a system role that closes when I move to Lahey in October.

Guidelines and society

I served as President of the Society of Cardiovascular Computed Tomography in 2022–2023, after a long stretch on the board, as treasurer, as president-elect, and as chair of the guidelines committee. I have written or co-written SCCT expert consensus documents on CAD-RADS, CCTA terminology, emergency-department CCTA, myocardial CT perfusion, and congenital heart disease CT. At the American College of Radiology I have sat on the Cardiac Imaging appropriateness panel since 2004 and have chaired that panel since 2021. Several of the appropriateness criteria list me as a lead or near-lead author. I have also served as a peer reviewer or rating-panel member for multimodality appropriate-use documents from the American College of Cardiology and sister societies.

Editorial work is part of the same job. I am Deputy Editor of Radiology: Cardiothoracic Imaging, and I sit on the editorial boards of that journal and of Coronary Artery Disease.

What comes next

In October 2026 I will become Executive Vice Chair of Radiology at Lahey Hospital & Medical Center in Burlington. I will continue the scientific, educational, and leadership work described here — cardiac CT and MRI, radiation-dose reduction, appropriateness and guideline development, and operational analytics — in a new department and a new system. I remain Associate Professor of Radiology at Harvard Medical School through the transition.

The short version lives on the homepage. The papers, grouped by the work rather than by year, are here.