Which imaging modality is most associated with breast cancer screening?

Which imaging modality is most associated with breast cancer screening?

• A. Mammography
• B. Computed Tomography
• C. MRI
• D. Ultrasound

Answer: (A)

Screening for breast cancer relies on a specialized, low-dose X-ray exam that can reveal tiny calcifications and small masses in otherwise normal-appearing tissue. This makes mammography the imaging modality most closely associated with routine screening. It’s widely used for average-risk women and can reduce mortality when performed regularly; standard practice typically includes two views of each breast to improve detection. Other imaging options serve different roles. Computed tomography exposes the breast to more radiation and doesn’t provide the same soft-tissue detail needed for effective screening, so it isn’t used for routine screening. MRI is highly sensitive and valuable for high-risk populations or diagnostic workups, but its cost, availability, and higher false-positive rate limit it as a general screening tool. Ultrasound is helpful for evaluating a known lesion or guiding biopsy and can assist in dense breasts, but it isn’t used as the primary screening method for asymptomatic individuals because it would miss some cancers that mammography can detect.

Screening for breast cancer relies on a specialized, low-dose X-ray exam that can reveal tiny calcifications and small masses in otherwise normal-appearing tissue. This makes mammography the imaging modality most closely associated with routine screening. It’s widely used for average-risk women and can reduce mortality when performed regularly; standard practice typically includes two views of each breast to improve detection.

Other imaging options serve different roles. Computed tomography exposes the breast to more radiation and doesn’t provide the same soft-tissue detail needed for effective screening, so it isn’t used for routine screening. MRI is highly sensitive and valuable for high-risk populations or diagnostic workups, but its cost, availability, and higher false-positive rate limit it as a general screening tool. Ultrasound is helpful for evaluating a known lesion or guiding biopsy and can assist in dense breasts, but it isn’t used as the primary screening method for asymptomatic individuals because it would miss some cancers that mammography can detect.