Nelvig P, Wing K, Welander U
Regam Medical Systems AB, University of Umeå, Karolinska Institutet, Stockholm, Sweden.
Oral Surg Oral Med Oral Pathol. 1992 Dec;74(6):818-23. doi: 10.1016/0030-4220(92)90415-m.
A new system for direct digital intraoral radiography, Sens-A-Ray, is presented. This system is based on a detector with a charge-coupled device that was designed especially for direct exposure to x-ray radiation. The system also includes interface electronics and an IBM AT-compatible personal computer with a digital I/O with frame memory, a super VGA graphics board, a high-resolution monitor, and software for the exposure, capture, storage, and enhancement of images. An external optical mass storage device is used for permanent storage of images in digital format. A video printer may be used to create hard copies. The system produces radiographic images at a significantly lower exposure than required for E-speed intraoral film. Applications of the system are exemplified, and its basic properties are discussed.
介绍了一种用于直接数字化口腔内放射摄影的新系统——Sens-A-Ray。该系统基于一种带有电荷耦合器件的探测器,该探测器是专门为直接暴露于X射线辐射而设计的。该系统还包括接口电子设备和一台IBM AT兼容个人计算机,该计算机带有具有帧存储器的数字输入/输出、一个超级VGA图形板、一个高分辨率监视器以及用于图像曝光、采集、存储和增强的软件。一个外部光学大容量存储设备用于以数字格式永久存储图像。可以使用视频打印机来制作硬拷贝。该系统产生放射影像所需的曝光量明显低于E速口腔内胶片所需的曝光量。举例说明了该系统的应用,并讨论了其基本特性。