Jacobson J A, Andresen R, Jaovisidha S, De Maeseneer M, Foldes K, Trudell D R, Resnick D
Department of Radiology, Veterans Administration Medical Center, San Diego, CA 92151, USA.
AJR Am J Roentgenol. 1998 May;170(5):1231-8. doi: 10.2214/ajr.170.5.9574591.
The purpose of this study was to compare radiography, sonography, and MR imaging in revealing ankle effusions in cadaveric specimens.
Known quantities of saline solution were instilled in increments into the ankle joints of three cadaveric specimens. Imaging was completed after each injection with the ankle in dorsiflexion, plantar flexion, and a neutral position. Imaging included radiography, sonography, and MR imaging. Three observers who were aware of possible joint fluid evaluated the images by consensus and determined the presence or absence of joint effusion.
MR imaging revealed 1 ml of fluid within the anterior recess of the ankle in a neutral position and in plantar flexion and within the posterior recess in dorsiflexion. Sonography revealed 2 ml of fluid within the anterior recess in a neutral position and in plantar flexion. Radiography revealed 5 ml of fluid within the anterior recess in a neutral position.
MR imaging, sonography, and lateral radiography, in order of decreasing sensitivity, revealed ankle effusion. The power to reveal with each technique is influenced by the precise position of the ankle.
本研究的目的是比较X线摄影、超声检查和磁共振成像在显示尸体标本踝关节积液方面的效果。
向三个尸体标本的踝关节中逐步注入已知量的盐溶液。每次注射后，在踝关节背屈、跖屈和中立位时完成成像。成像包括X线摄影、超声检查和磁共振成像。三名知晓可能存在关节液的观察者通过共识评估图像，并确定是否存在关节积液。
磁共振成像显示，在中立位和跖屈时，踝关节前隐窝内有1 ml液体，在背屈时后隐窝内有1 ml液体。超声检查显示，在中立位和跖屈时，前隐窝内有2 ml液体。X线摄影显示，在中立位时，前隐窝内有5 ml液体。
按敏感性由高到低的顺序，磁共振成像、超声检查和外侧X线摄影可显示踝关节积液。每种技术的显示能力受踝关节精确位置的影响。
