Reiner B, Siegel E, McLaurin T, Pomerantz S, Allman R, Hebel J R, Fritz S, Protopapas Z
Department of Radiology, University of Maryland Medical Center, Baltimore 21201, USA.
AJR Am J Roentgenol. 1996 Jul;167(1):141-4. doi: 10.2214/ajr.167.1.8659358.
The study was performed to evaluate detection of soft-tissue foreign bodies using conventional radiography (film-screen radiography), computed radiography printed on films (computed radiography-hard copy), and computed radiography displayed on a computer workstation (computed radiography-soft copy).
Fifteen foreign bodies of different size, shape, and composition were implanted at different locations in a fresh cadaveric hand, and images were obtained using three radiographic techniques. Images were evaluated by four board-certified radiologists to ascertain the conspicuity of the foreign bodies with the different techniques. A subjective grade was assigned to each image in an attempt to identify the relative conspicuity of foreign bodies when imaged with the three techniques.
Computed radiography-soft copy is the preferred imaging technique for the detection of wood and plastic foreign bodies in soft tissue regardless of the size of the wood or the plastic. No significant differences in conspicuity among the three techniques were demonstrated with glass foreign bodies.
Detection of soft-tissue foreign bodies is best done using computed radiography-soft copy instead of film-screen radiography and computed radiography-hard copy imaging.
本研究旨在评估使用传统放射摄影（屏-片摄影）、胶片打印的计算机X线摄影（计算机X线摄影-硬拷贝）以及计算机工作站上显示的计算机X线摄影（计算机X线摄影-软拷贝）检测软组织异物的情况。
将15个不同大小、形状和成分的异物植入一只新鲜尸体手的不同部位，并用三种放射摄影技术获取图像。由四名具有委员会认证的放射科医生对图像进行评估，以确定不同技术下异物的显影清晰度。为每张图像指定一个主观评分，试图确定用这三种技术成像时异物的相对显影清晰度。
无论木材或塑料的大小如何，计算机X线摄影-软拷贝是检测软组织中木材和塑料异物的首选成像技术。对于玻璃异物，三种技术在显影清晰度上无显著差异。
检测软组织异物最好使用计算机X线摄影-软拷贝，而非屏-片摄影和计算机X线摄影-硬拷贝成像。
