Add like
Add dislike
Add to saved papers

Anti-phase microwave illumination-based thermoacoustic tomography of in vivo human finger joints.

Medical Physics 2019 March 29
PURPOSE: Thermoacoustic tomography (TAT) has been studied to image joints. While several joint tissues could be thermoacoustically imaged, tendons and bone could not be recovered completely or clearly. The purpose of this study was to overcome this limitation.

METHODS: We developed a novel TAT system based on anti-phase microwave illumination method to image the proximal interphalangeal joint and middle phalanx of a right middle finger from a healthy volunteer. The performance of this new system for imaging joints and tendons was compared with that by in-phase microwave illumination and a conventional pyramidal horn antenna.

RESULTS: Anti-phase microwave illumination can produce relatively homogeneous electric (E)-Field distributions inside the joint tissues. The homogeneous E-Field distributions can enhance the detectability of flexor and extensor tendon. Anti-phase microwave illumination could image the flexor tendon, and extensor tendon and bone, which were not clearly imaged by the in-phase microwave illumination or by the horn antenna. The images generated by the in-phase microwave illumination and pyramidal horn antenna were almost identical in terms of the tissue types they imaged.

CONCLUSIONS: Anti-phase illumination can overcome the limitation associated with the conventional TAT by adding the ability of completely delineating tendons and bone in the joints. This study paves the way for us to continue the study and to validate its utility in detection of joint diseases. This article is protected by copyright. All rights reserved.

Full text links

We have located links that may give you full text access.
Can't access the paper?
Try logging in through your university/institutional subscription. For a smoother one-click institutional access experience, please use our mobile app.

For the best experience, use the Read mobile app

Mobile app image

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app

All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.

By using this service, you agree to our terms of use and privacy policy.

Your Privacy Choices Toggle icon

You can now claim free CME credits for this literature searchClaim now

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app