Hello,
I want to track the elongation of the Achilles tendon captured in a dynamic
ultrasound image using image J. I have been opening the AVI file as a stack
(approx 400 frames) and manually tracking the elongation using the manual
tracking plugin. Is there a way I can get frame by frame elongation without
having to manually track the object in each frame? The example given for the
automated tracker works because there is a definite contrast between the
object and the background. In an ultrasound image, there are multiple echoes
of the same intensity. Is there a way to deal with this?
I have another question regarding the measurement of elongation...the
elongation is not horizontal but occurs at an oblique angle because the
tendon is positioned at an oblique angle in the image. When the elongation
measurement is taken (distance), does it take the obliquity into account or
is it the pure length of the line from the first frame to the last frame? If
yes, then should I be taking the cosine to get the true horizontal
elongation?
Thank you for your help,
Shruti.
Shruti Arya
PhD Student
Musculoskeletal Biomechanics Research Laboratory
Department of Biokinesiology and Physical Therapy
University of Southern California
1540 E. Alcazar Street, CHP-155
Los Angeles, CA 90089-9006
323.442.2089
[hidden email]
Locked
