Calcification can lead to which imaging shadowing artifact?

Calcification can lead to which imaging shadowing artifact?

• A. Shadowing
• B. Blooming artifact
• C. Mirror imaging
• D. Edge enhancement

Answer: (A)

Calcifications are dense and highly reflective, causing substantial attenuation of the ultrasound beam as it passes through them. That strong attenuation creates a dark area behind the calcified structure, known as posterior acoustic shadowing. The calcification itself often appears as a bright, highly echogenic focus, with a dark shadow extending distal to it. This shadowing is the classic artifact produced by calcifications. Other artifacts listed are not caused by calcifications: bloom relates to Doppler color brightness or gain effects, mirror imaging arises from strong reflectors producing a duplicate image, and edge enhancement is a post-processing effect that emphasizes borders.

Calcifications are dense and highly reflective, causing substantial attenuation of the ultrasound beam as it passes through them. That strong attenuation creates a dark area behind the calcified structure, known as posterior acoustic shadowing. The calcification itself often appears as a bright, highly echogenic focus, with a dark shadow extending distal to it. This shadowing is the classic artifact produced by calcifications.

Other artifacts listed are not caused by calcifications: bloom relates to Doppler color brightness or gain effects, mirror imaging arises from strong reflectors producing a duplicate image, and edge enhancement is a post-processing effect that emphasizes borders.