Which term describes the imaging phenomenon related to tissue motion or vibration in breast imaging?

Which term describes the imaging phenomenon related to tissue motion or vibration in breast imaging?

• A. Fremitus.
• B. Elastography.
• C. Contrast-enhanced ultrasound.
• D. Mammography.

Answer: (A)

Fremitus refers to the transmission of vibratory energy or tissue motion through breast tissue. When tissue is set into vibration, the way this motion propagates can be detected by imaging and palpated, revealing how different tissues transmit or dampen that vibration. This phenomenon provides functional information about tissue, such as distinguishing areas that transmit vibration similarly to surrounding tissue from those where motion is altered by a mass or stiffness. Elastography is a related concept in that it uses induced motion to map tissue stiffness, but fremitus specifically describes the observable vibration transmission itself. Contrast-enhanced ultrasound and mammography focus on contrast uptake or static X-ray imaging, respectively, and do not center on tissue motion or vibration in the same way.

Fremitus refers to the transmission of vibratory energy or tissue motion through breast tissue. When tissue is set into vibration, the way this motion propagates can be detected by imaging and palpated, revealing how different tissues transmit or dampen that vibration. This phenomenon provides functional information about tissue, such as distinguishing areas that transmit vibration similarly to surrounding tissue from those where motion is altered by a mass or stiffness. Elastography is a related concept in that it uses induced motion to map tissue stiffness, but fremitus specifically describes the observable vibration transmission itself. Contrast-enhanced ultrasound and mammography focus on contrast uptake or static X-ray imaging, respectively, and do not center on tissue motion or vibration in the same way.