Fairfax Radiological Consultants

To Schedule an Appointment Call:
703.698.4488

Low-Dose Computed Tomography (CT)

We do not just meet the standards in low-dose radiation. We set them.

CT, also called CAT scan or Computed Tomography, is a type of diagnostic test that uses sophisticated, computerized X-ray equipment to produce cross-sectional images that enable detailed evaluation of anatomy to help detect a variety of diseases and conditions.

Weighing the benefits of advanced imaging such as Computed Tomography (CT) with the potential risk of exposing yourself to radiation is always a careful balance. At Fairfax Radiology, your health and well-being and that of your loved ones are our top priorities. That is why we were one of the first Radiology practices in the nation to provide low-dose CT scanning at all of our facilities. It is why we have built an extensive patient safety program that ensures every scanner is carefully programmed and tested to provide the lowest achievable radiation dose.

As part of our ongoing commitment to quality and safety, Fairfax Radiology has achieved accreditation status through the American College of Radiology (ACR), for various imaging modalities that we offer. For CT, the ACR Accreditation Program evaluates the qualifications of personnel, appropriateness of different technical scan parameters and ensures that optimal minimal radiation dose protocols are incorporated and followed. Fairfax Radiology employs the most qualified physicians, technologists and other personnel, who all require ongoing continuing education to remain skilled in providing radiology services.

With higher resolution scans and lower radiation exposure, Fairfax Radiology is the clear choice for advanced CT imaging.

Fairfax Radiology's CT Radiation Dose Reduction Initiative includes:

  • Advanced, low-dose GE CT scanners at each of our CT imaging centers.
  • Software technology, Adaptive Statistical Iterative Reconstruction (ASIR) that reduces radiation dosage.
  • CT scanners that incorporate dose notifications and alerts as well as adjust the amount of radiation based on size, shape and body composition.
  • Highly trained Technologists who adhere to specific exam protocols that maximize image quality while minimizing radiation dose.

Click on any of our CT procedures below to learn more.

Michael J. Varanelli, M.D.

Michael J. Varanelli, M.D.

Body Imaging
Breast Imaging
Diagnostic Radiology
Thyroid & Lymph Node FNA
Ultrasound
Joined Practice:
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Medical School

University of Pittsburgh School of Medicine
Completed 1996

Residency

Yale University School of Medicine
Completed 2001

Fellowship

Yale University School of Medicine
Abdominal/Cross-Sectional Imaging
Completed 2002

Board Certification

American Board of Radiology
2001

Professional Affiliations & Memberships

American College of Radiology

Dana A. Twible, M.D.

Dana A. Twible, M.D.

Body Imaging
Body Imaging & Intervention
Cardiac Imaging
Diagnostic Radiology
Ultrasound
Joined Practice:
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Medical School

The University of Virginia
Completed 1978

Residency

Brigham and Women's Hospital / Harvard Medical School
Completed 1982

Board Certification

American Board of Radiology
1982

Professional Affiliations & Memberships

Washington Clinico-Pathological Society
Radiological Society of North America
American College of Radiology

Kathryn Grumbach, M.D.

Kathryn Grumbach, M.D.

Body Imaging
Breast Imaging
Diagnostic Radiology
Ultrasound
Joined Practice:
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Medical School

University of Pennsylvania
Completed 1979

Residency

Beth Israel Hospital
Completed 1983

Fellowship

Hospital of the University of Pennsylvania
Ultrasound, CT and Gastrointestinal Radiology
Completed 1984

Board Certification

American Board of Radiology

Professional Affiliations & Memberships

Radiological Society of North America
American Roentgen Ray Society
American College of Radiology

Marilyn A. Barry-Brooks, MD

Marilyn A. Barry-Brooks, MD

Body Imaging
Breast Imaging
Breast Imaging & Intervention
Diagnostic Radiology
Ultrasound
Joined Practice:
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Medical School

Tufts University School of Medicine
Completed 2009

Residency

Brown University
Completed 2014

Fellowship

Brigham and Women’s Hospital
Completed 2015

Board Certification

American Board of Radiology
2014

Professional Affiliations & Memberships

American College of Radiology
Society of Breast Imaging 
Association of University Radiologists 
American Alliance of Academic Chief Residents in Radiology 
Radiological Society of North America 
American Roentgen Ray Society

Lyndon K. Goodwin, M.D.

Lyndon K. Goodwin, M.D.

Diagnostic Radiology
Neuro Imaging
Joined Practice:
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Medical School

University of Maryland School of Medicine
Completed 1979

Residency

University of Florida
Completed 1982

Fellowship

University of Florida
Neuroradiology
Completed 1983

Board Certification

American Board of Radiology
Subspecialty Certification in Neuroradiology, ABR

Professional Affiliations & Memberships

Radiologic Society of North America
American Society of Neuroradiology
American Medical Association
American College of Radiology

Wei-Shen D. Griggs, M.D.

Wei-Shen D. Griggs, M.D.

Breast Imaging
Diagnostic Radiology
Nuclear Medicine
PET CT
Ultrasound
Joined Practice:
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Medical School

University of Chicago
Completed 2001

Residency

Hospital of the University of Pennsylvania
Completed 2006

Fellowship

Hospital of the University of Pennsylvania
Nuclear Medicine
Completed 2007

Professional Affiliations & Memberships

American College of Radiology

Maria C. Albano, M.D.

Maria C. Albano, M.D.

Body Imaging
Body Imaging & Intervention
CT Colonography
Diagnostic Radiology
Ultrasound
Joined Practice:
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Medical School

Tufts University
Completed 1996

Residency

New York-Presbyterian Hospital
Weill Cornell Center
Completed 2001

Fellowship

Beth Israel Deaconess Medical Center
Abdominal CT/US/MRI 
Completed 2002

Board Certification

American Board of Radiology
2001

Professional Affiliations & Memberships

American College of Radiology
Radiological Society of North America
Association of University Radiologists

Gary M. Kellman, M.D.

Gary M. Kellman, M.D.

Diagnostic Radiology
Musculoskeletal Imaging & Intervention
Thyroid & Lymph Node FNA
Ultrasound
Joined Practice:
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Medical School

Wayne State University School of Medicine
Completed 1981

Residency

Henry Ford Hospital
Completed 1985

Fellowship

Medical College of Wisconsin
Digital Imaging (CT, MRI, US)
Completed 1986

Board Certification

American Board of Radiology
1985

Professional Affiliations & Memberships

Alpha Omega Alpha Honor Medical Society
Radiological Society of North America
American Institute of Ultrasound in Medicine
American College of Radiology
Michigan Ultrasound Society
Society of Radiologists in Ultrasound
Society for the Advancement of Women's Imaging
Wilderness Medical Society

Jonathan E. Alfert, M.D.

Jonathan E. Alfert, M.D.

Body Imaging
Diagnostic Radiology
Nuclear Medicine
PET CT
Ultrasound
Joined Practice:
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Medical School

State University of New York
Completed 1996

Residency

University of Virginia
Completed 2001

Fellowship

Harvard Medical School
Nuclear Medicine
Completed 2002

Board Certification

American Board of Radiology
2001

Professional Affiliations & Memberships

Radiological Society of North America
American College of Radiology

List of Procedures in this Category

PET/CT

A diagnostic test that combines nuclear medicine with advanced 3D imaging to offer the most advanced imaging technique available for the diagnosis, monitoring and treatment of many diseases.

Body CT

A diagnostic test that uses sophisticated X-ray equipment to help detect diseases and conditions of the chest, abdomen and/or pelvic areas.

CT Virtual Colonoscopy

A less invasive alternate for the screening of colorectal cancer that uses CT scans to create a 3D image that will show any abnormalities inside the colon, rectum and pelvic area.

Coronary CTA

An advanced screening test that can accurately show both calcified and soft cholesterol plaques in the arteries, and determine the presence and severity of blood flow obstruction.

Calcium Score

An advanced screening test that can accurately identify calcified plaques, which can be a predictor of significant disease.

Vascular CTA

A test that combines computer technology, sophisticated X-ray equipment and a contrast agent to produce detailed images of the arteries and veins inside the body.

Lung Screening LDCT

A simple test that uses sophisticated X-ray equipment and low-dose radiation to identify lung cancer and other lung diseases that would be invisible on regular chest X-rays.

Neuro CT

A diagnostic imaging test that uses sophisticated X-ray equipment to specifically address the central nervous system and associated structures using imagery of the head and spine.

CT Enterography

An advanced diagnostic test that uses special X-rays to produce detailed images of the small intestine, abdomen and pelvis to help diagnose Inflammatory Bowel Disease and other abnormalities.

Dental CT

The most advanced form of dental imaging available that uses multiple images from different angles to create a comprehensive 3D visualization of the inside of the mouth.

Musculoskeletal CT

A diagnostic test that focuses on the extremities and spine and is used to help diagnose the cause of pains or symptoms or to get a snapshot of any progress from an earlier treatment.