Difference between digital radiography system and digital radiography system

You are talking about the same kind of medical equipment! The English name is Digital Radiography, referred to as DR, is a hospital class II medical equipment, generally in the three hospitals will have this equipment, of course, grass-roots hospitals are being popularized.

1. DR and traditional X-ray image acquisition and comparison: DR is a collection of regular digital quantities to the performance of the physical pattern, digital imaging is characterized by: gray scale dynamic range, density resolution is relatively high, linear, rich layers; can be post-processing; radiation dose is small. The analog image (traditional X-ray image) is an intuitive physical quantities to continuous, image to show another physical characteristics of the pattern, which is characterized by: continuous, intuitive access to convenient; image performance with a generalization and real-time dynamic access to other characteristics, but, analog image repeatability is poor, but the imaging can not be changed or post-processing; gray scale dynamic range is small.

2. DR is superior to traditional X-ray clinical applications: the diagnostic basis of DR is basically the same as that of traditional radiographs, but the post-processing of digital images has significantly expanded the scope of diagnosis.

3. The main characteristics of DR over traditional X-ray

(1) improved image quality, and significantly reduce the exposure conditions;

(2) fast imaging speed, acquisition time of 10 ms or less, the conventional photo imaging time is only 5 s, radiographers immediately observe the image on the screen. Transfers to post-processing workstations in seconds. Laser film is printed as needed.

(3) Energy subtraction makes it possible, for the first time, to separate bone tissue from cardiopulmonary tissue on plain X-rays, which greatly improves the specific diagnosis of small nodules in the lungs.

(4) With powerful post-processing capability, it provides the best digital platform for hospitals to realize networking, due to the balance of image quality and network delivery requirements. (5) Effectively solve the image archiving management and transmission, the use of CD-ROM burning cost is inexpensive, with good economic efficiency. It improves the efficiency of the radiology department and increases the circulation of patients.

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