Four-Dimensional Real-Time Cine Images of Wrist Joint Kinematics Using Dual Source CT with Minimal Time Increment Scanning.
10.3349/ymj.2013.54.4.1026
- Author:
Yoon Seong CHOI
1
;
Young Han LEE
;
Sungjun KIM
;
Hee Woo CHO
;
Ho Taek SONG
;
Jin Suck SUH
Author Information
1. Department of Radiology, Yonsei University College of Medicine, Seoul, Korea. hotsong@yuhs.ac
- Publication Type:Original Article ; Research Support, Non-U.S. Gov't
- Keywords:
Dual source;
computed tomography;
carpal kinematics;
four dimensional;
dynamic imaging
- MeSH:
Adult;
Artifacts;
Biomechanical Phenomena;
Carpal Bones/radiography;
Female;
Humans;
Nontherapeutic Human Experimentation;
Radiation Dosage;
Radiographic Image Interpretation, Computer-Assisted/methods;
Tomography, X-Ray Computed/*methods;
Wrist Joint/*physiology/*radiography
- From:Yonsei Medical Journal
2013;54(4):1026-1032
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: To validate the feasibility of real time kinematography with four-dimensional (4D) dynamic functional wrist joint imaging using dual source CT. MATERIALS AND METHODS: Two healthy volunteers performed radioulnar deviation and pronation-supination wrist motions for 10 s and 4 s per cycle in a dual source CT scanner. Scan and reconstruction protocols were set to optimize temporal resolution. Cine images of the reconstructed carpal bone of the moving wrist were recorded. The quality of the images and radiation dosage were evaluated. RESULTS: The 4D cine images obtained during 4 s and 10 s of radioulnar motion showed a smooth stream of movement with good quality and little noise or artifact. Images from the pronation-supination motion showed noise with a masked surface contour. The temporal resolution was optimized at 0.28 s. CONCLUSION: Using dual source CT, 4D cine images of in vivo kinematics of wrist joint movement were obtained and found to have a shorter scan time, improved temporal resolution and lower radiation dosages compared with those previously reported.
