Radiology Practice Test

What is the primary benefit of using a 3D mammography system?

1. Reduced cost of mammography exams

2. Enhanced accuracy in detecting breast cancers compared to standard 2D mammography

3. Faster imaging time

4. Less radiation exposure to patients

The correct answer is: Enhanced accuracy in detecting breast cancers compared to standard 2D mammography

The primary benefit of using a 3D mammography system, often referred to as digital breast tomosynthesis, is its enhanced accuracy in detecting breast cancers compared to standard 2D mammography. This advanced imaging technique provides a three-dimensional view of the breast, allowing for improved visualization of breast tissue. As a result, it reduces the overlap of tissues, which can often obscure small tumors in traditional 2D images. Studies have shown that 3D mammography can lead to earlier detection of breast cancer, which is crucial for effective treatment and improving patient outcomes. For instance, the ability to see through dense breast tissue enhances the radiologist's ability to identify abnormalities that might be missed with 2D imaging alone. While cost, imaging time, and radiation exposure are important factors in radiology, they do not primarily define the superior capability of 3D mammography. The key distinction lies in its ability to improve diagnostic accuracy and subsequently enhance screening effectiveness for breast cancer.