膝关节韧带双能CT的初步定性研究。
An initial qualitative study of dual-energy CT in the knee ligaments.
作者信息
Sun Cong, Miao Fan, Wang Xi-Ming, Wang Tao, Ma Rui, Wang Dao-Ping, Liu Cheng
机构信息
Shandong Provincial Medical Imaging Institute, Road jing-wu, No. 324, 250021, Jinan, Shandong, China.
出版信息
Surg Radiol Anat. 2008 Jul;30(5):443-7. doi: 10.1007/s00276-008-0349-y. Epub 2008 Apr 22.
OBJECTIVE
To study the clinical application of dual-energy CT (DECT) in the knee ligaments.
METHODS
Twelve cases (24 knees) were scanned using dual-energy CT for the knee. Two- and three-dimensional images were used for display in all cases by means of multi-planar reformation (MPR) and volume rendering technique (VRT). All images were ranked by two radiologists according to the grade of knee ligament displayed, the definition of edge and attachment points of the knee ligament.
RESULTS
The partial ligaments of 24 knees, such as the patellar ligament, fibular collateral ligament, anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) were clearly displayed; the tibial collateral ligament was not satisfactorily displayed. The transversal ligaments, such as lateral patellar retinaculum and medial patellar retinaculum, and the posterior ligament, such as oblique popliteal ligament could not be shown clearly.
CONCLUSION
The dual-energy CT is a new and valuable tool to qualitatively display the main ligaments of the knee.
目的
研究双能CT（DECT）在膝关节韧带中的临床应用。
方法
对12例（24个膝关节）患者行膝关节双能CT扫描。所有病例均通过多平面重组（MPR）和容积再现技术（VRT）进行二维和三维图像显示。两位放射科医生根据膝关节韧带显示的分级、膝关节韧带边缘和附着点的清晰度对所有图像进行排序。
结果
24个膝关节的部分韧带，如髌韧带、腓侧副韧带、前交叉韧带（ACL）和后交叉韧带（PCL）显示清晰；胫侧副韧带显示不满意。横向韧带，如髌外侧支持带和髌内侧支持带，以及后韧带，如腘斜韧带，显示不清。
结论
双能CT是定性显示膝关节主要韧带的一种新的有价值的工具。
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