RADIOLOGY

Digital and Computed Radiology

Abstract

In this paper comparison and contrast of computed and digital radiology has been explained. Also, advantages and disadvantages of computed and digital radiology methods have been mention in relation to the conventional methods of radiology. Furthermore, the paper describes the benefits of digital and computed radiology, and possible improvements in both the types of radiology predicted in the future. When comparing and contrasting Digital Radiology and Computed Radiology, each category of radiology system offers relative advantages, but Digital Radiology might seem to be a better choice for some hospitals, labs and facilities with an increased load of patients because of the greater ease of use and elimination of cassette handling with Digital Radiology.

Digital and Computed Radiology

Introduction

Digital radiology systems included pictures in which the physical process performed to obtain the digital image was very different. Radiology images are directly obtained in digital form without having previously passed through an X-ray film plate. The image in digital radiography is a file in memory of a computer or a system that is able to send through a network server for storage and use.

Several years ago in the Radiology Services the collection systems were diagnostic imaging in which the image obtained was digital that is CT, MRI and ultrasound equipment which is known as digital veins. For more than a decade, digital technology is taking an increasingly important position in the Diagnostic Imaging Services: CT scan, Nuclear Medicine, MRI, Angiography and Digital Ultrasound Cardiography. Currently, there are over 200 units installed worldwide; majority of them are in Japan, and the rest are in U.S. and Europe.

Discussion

In contrast to the classical system, which is an X-ray tube that emits X-rays of the test object (patient) - X-ray film; digital radiography changes in the intensity of radiation after passing through the patient's body recorded in two ways. These two ways have decided on the distribution of digital radiography into two types. The direct radiology based on Charged Coupled Devices (CCD) on a flat-panel detector, and indirect digital radiology based on Computer Radiology (CR), which has facilitated the adaption process. A Computed Radiography (CR) is an imaging system similar to that used in conventional radiology, instead of a conventional film using a reusable phosphor plate, which is included in a chassis. CR reader reads and digitizes the image using a laser scanning system (this digital image has the potential to be improved through the use ...