Low-Dose Computed Tomography (CT)

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

CT, also called a 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 CT with the potential risk of radiation exposure is always a careful balance. At Fairfax Radiology, your health and well-being—and that of your loved ones—are our top priorities. That’s why we were one of the first radiology practices in the nation to provide low-dose CT scanning at all our facilities. It’s also why we’ve built an extensive patient safety program to ensure every scanner is carefully programmed and tested to provide the lowest achievable radiation dose.

Fairfax Radiology has convenient locations offering CT procedures.

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. For CT, the ACR Accreditation Program evaluates the qualifications of personnel, the appropriateness of technical scan parameters, and ensures that optimal minimal radiation dose protocols are incorporated and followed. Fairfax Radiology employs highly qualified physicians, technologists and other personnel, all of whom complete 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.

Tin filtration technology

Tin filtration is an advanced technique that helps reduce radiation exposure in certain CT exams by filtering out low-energy photons. These photons contribute to dose but not image quality. The technology improves image contrast and clarity while lowering exposure for patients.

At Fairfax Radiology, tin filtration is used for specific clinical applications—especially in low-dose lung cancer screening and low-dose renal stone CT—where image clarity and dose optimization are critical.

Advanced image reconstruction

To further enhance image quality while minimizing radiation dose, Fairfax Radiology uses iterative image reconstruction techniques. This software-based approach reduces image noise and improves clarity, allowing for high-quality scans at significantly lower radiation levels.

With the addition of this technology on a new CT scanner coming soon to the Woodbridge location, all Fairfax Radiology CT scanners will feature iterative reconstruction.

CT Radiation Dose Reduction Initiative

Fairfax Radiology's CT radiation dose reduction strategy includes:

• Advanced, low-dose CT scanners at each of our CT imaging centers.
• Software such as iterative image reconstruction and hardware such as tin filtration, used for specific applications at select locations.
• CT scanners that incorporate dose notifications and alerts and automatically adjust radiation based on patient size, shape and body composition.
• Highly trained technologists who follow specific exam protocols designed to maximize image quality while minimizing radiation dose.

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