Physician Photo

G. Scott (G Scott) Gazelle, MD, PhD

Director, Breast Imaging

Vice Chair for Faculty Affairs, Department of Radiology

Director, Institute for Technology Assessment

  • Phone: 617-724-4445
Clinical Interests
Cancer Screening
Breast cancer
Colon and rectal cancer
Percutaneous Tumor Ablation
Boston: Massachusetts General Hospital
Medical Education
MD, Case Western Reserve University School of Medicine
MPH, Harvard School of Public Health
PhD, Harvard University
Residency, Case Western Reserve University Hospital
Fellowship, Case Western Reserve University Hospital
Board Certifications
Diagnostic Radiology, American Board of Radiology
Patient Age Group
Accepting New Patients
Accepting New Patients

ResearchMy research focuses on the clinical, economic and policy implications of new medical technologies.  A major focus of my work has been on cancer prevention and control, principally related to breast, lung and colorectal cancer.  


Lee JM, McMahon PM, Kong CY, Kopans DB, Ryan PD, Ozanne EM, Halpern EF, Gazelle GS. Cost-Effectiveness of Breast MRI and Screen-Film Mammography for Screening BRCA1 Gene Mutation Carriers. Radiology, 2010; 254: 793-800

McMahon PM, Kong CY, Bouzan C, Weinstein MC, Cipriano LE, Tramontano AC, Johnson BE, Weeks JC, Gazelle GS.  Cost-effectiveness of Computed Tomography Screening for Lung Cancer in the United States.  Journal of Thoracic Oncology, 2011; 6: 1841-1848

Lowry KP, Lee JM, Kong CY, McMahon PM, Gilmore ME, Chubiz JEC, Pisano ED, Gatsonis C, Ryan PD, Ozanne EM, Gazelle GS. Annual Screening Strategies in BRCA1 and BRCA2 Gene Mutation Carriers: A Comparative Effectiveness Analysis.  Cancer; 2012; 118: 2021-2030

Knudsen AB, Hur C, Gazelle GS, Schrag D, McFarland EG, Kuntz KM. Rescreening of Individuals with a Negative Colonoscopy: Results from a Microsimulation Model. Annals of Internal Medicine, 2012; 157: 611-620

Cott Chubitz JE, Lee JM, Gilmore ME, Lowry KP, Halpern EF, McMahon PM, Ryan PD, Gazelle GS. Cost-Effectiveness of Alternating Magnetic Resonance Imaging and Digital Mammography Screening in BRCA1 and BRCA2 Gene Mutation Carriers. Cancer, 2013; 119:1266-1276

The value of CT scans

There is no reason to create obtrusive coverage policies that will block access to these lifesaving tools that are truly transforming care for millions of patients.

The scan that didn’t scan

All MRIs are not created equal: Look for expertise among those administering the exams and among the radiologists reading them.

What to know before getting a CT scan

Two Mass General experts talk about what patients need to know when their doctor suggests a CT scan.

In General: 05.06.11

In General awards and honors

Mass General radiologists inducted as fellows in the American College of Radiology

Six Mass General radiologists were recently inducted as American College of Radiology fellows, demonstrating a history of service and dedication to patients.

CT scanning aids rapid diagnosis, treatment planning for abdominal pain

The use of CT scanning to evaluate abdominal pain in emergency departments can help physicians arrive at a diagnosis quickly and decisively.

CT angiography speeds emergency diagnosis of heart disease in low-risk patients

Incorporating coronary CT angiography into the initial evaluation of low-risk patients coming to hospital emergency departments with chest pain appears to reduce the time patients spend in the hospital without incurring additional costs or exposing patients to significant risks.

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Phone: 617-724-4445
Phone 2: 617-726-4047
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