Читать книгу A Comprehensive Guide to Radiographic Sciences and Technology - Euclid Seeram - Страница 36

Fluoroscopy produces dynamic images acquired in real‐time to allow for the study of motion of organ systems and hollow internal structures such as the gastrointestinal tract, as well as blood circulatory system. The major system components of a DF system (Figure 2.7) consist of a flat‐panel digital detector to allow for the creation of real‐time dynamic images processed by a computer and subsequently displayed as a square image on the viewing monitor, compared to a circular image typical of the older image intensifier‐based DF systems. This display method eliminates what is known as pin cushion distortion effects characteristic of the older digital fluoroscopic systems.

Figure 2.5 The major components of a CR system include the imaging plate (IP), the IP processor, IP erasure, and image display monitor.

Figure 2.6 The major system components of a FPDR system include an x‐ray generator, an x‐ray tube, a flat‐panel digital detector, a computer, an image display monitor, and finally a digital communications system.

Figure 2.7 The major system components of a DF system consist of a flat‐panel digital detector to allow for the creation of real‐time dynamic images processed by a computer and subsequently display the image as a square image on the viewing monitor, compared to a circular image typical of the older image intensifier‐based digital fluoroscopy systems. This display method eliminates what is known as pin cushion distortion effects characteristic of the older digital fluoroscopic systems.