B-mode imaging, often called B-scan, is used to describe which type of image?

B-mode imaging, often called B-scan, is used to describe which type of image?

• A. Thermal image
• B. Color image
• C. Grayscale image
• D. 3D color image

Answer: (C)

B-mode imaging encodes the strength of ultrasound echoes as brightness on a two-dimensional grayscale cross-section of tissue. As the transducer scans, each echo's amplitude is mapped to a brightness level, so stronger reflections (like bone or dense interfaces) appear brighter, while weaker echoes (fluid or soft tissue) appear darker. This creates a flat, cross-sectional image in grayscale that shows anatomy in a single plane. Color and temperature mappings aren’t part of the standard B-mode display, though color can be added in Doppler modes to show flow. So the image produced by B-mode imaging is a grayscale image.

B-mode imaging encodes the strength of ultrasound echoes as brightness on a two-dimensional grayscale cross-section of tissue. As the transducer scans, each echo's amplitude is mapped to a brightness level, so stronger reflections (like bone or dense interfaces) appear brighter, while weaker echoes (fluid or soft tissue) appear darker. This creates a flat, cross-sectional image in grayscale that shows anatomy in a single plane. Color and temperature mappings aren’t part of the standard B-mode display, though color can be added in Doppler modes to show flow. So the image produced by B-mode imaging is a grayscale image.