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Four-Dimensional Real-Time Cine Images of Wrist Joint Kinematics Using Dual Source CT with Minimal Time Increment Scanning

 Yoon Seong Choi  ;  Young Han Lee  ;  Sungjun Kim  ;  Hee Woo Cho  ;  Ho-Taek Song  ;  Jin-Suck Suh 
 YONSEI MEDICAL JOURNAL, Vol.54(4) : 1026-1032, 2013 
Journal Title
Issue Date
Adult ; Artifacts ; Biomechanical Phenomena ; Carpal Bones/diagnostic imaging ; Female ; Humans ; Nontherapeutic Human Experimentation ; Radiation Dosage ; Radiographic Image Interpretation, Computer-Assisted/methods ; Tomography, X-Ray Computed/methods* ; Wrist Joint/diagnostic imaging* ; Wrist Joint/physiology*
Dual source ; carpal kinematics ; computed tomography ; dynamic imaging ; four dimensional
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.
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1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Sungjun(김성준) ORCID logo https://orcid.org/0000-0002-7876-7901
Suh, Jin Suck(서진석) ORCID logo https://orcid.org/0000-0001-9455-9240
Song, Ho Taek(송호택) ORCID logo https://orcid.org/0000-0002-6655-2575
Lee, Young Han(이영한) ORCID logo https://orcid.org/0000-0002-5602-391X
Cho, Hee Woo(조희우) ORCID logo https://orcid.org/0000-0002-5079-6954
Choi, Yoon Seong(최윤성)
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