Why Do Ultrasound Axial Resolution Phantoms Show Stretched Black Dots?

Join the discussion
Registration is free. Start your own thread to ask a follow-up.
1 reply · 2K views
BobP
Messages
70
Reaction score
1
Hi
the image below taken from http://www.gammex.com/ace-files/manuals/411LE_Users_Guide.pdf

shows an ultrasound axial resolution phantom. I do not understand why the black dots on the phantom are stretched up-and-down in the ultrasound image. I do understand though why they get wider.

Please can someone explain why the dots get taller
Thank you
upload_2015-11-6_23-24-39.png
 
Physics news on Phys.org
does it perhaps have anything to do with beam softening?