多排螺旋CT（MDCT）对肩肱关节和胸锁关节内关节积气的显示及其与手臂位置的关系。

MDCT demonstration of intraarticular gas in the glenohumeral joint and sternoclavicular joint with reference to arm position.

作者信息

Ito Haruhiko, Yoshikawa Takeharu, Hayashi Naoto, Ohtomo Kuni

机构信息

Department of Radiology, Graduate School of Medicine, The University of Tokyo,Bunkyo-ku, Tokyo, 113-8655, Japan.

出版信息

Radiat Med. 2008 Aug;26(7):422-6. doi: 10.1007/s11604-008-0253-8. Epub 2008 Sep 4.

DOI:10.1007/s11604-008-0253-8

PMID:18770000

Abstract

PURPOSE

Our purpose was to investigate the frequency of intraarticular gas in the glenohumeral joint and sternoclavicular joint, along with the influence of the patient's arm position.

MATERIALS AND METHODS

Multidetector-row computed tomography (MDCT) scan on a total of 104 healthy subjects was investigated retrospectively. Raised-arm and lowered-arm positions were used sequentially, and the presence of intraarticular gas was investigated.

RESULTS

While the arms were in a raised position, intraarticular gas was observed in the glenohumeral joint about 9% of all subjects and in the sternoclavicular joint about 20% of all subjects. Intraarticular gas in the most subjects disappeared when the arms were lowered.

CONCLUSION

When scanning with the arms in a raised position, intraarticular gas was seen in the glenohumeral and/or and sternoclavicular joint, and disappeared in most cases when the body position was changed. Such intraarticular gas is thought to result from traction of the limbs and is considered clinically insignificant.

摘要