Excuse me, what do hospital photos dx and dr refer to respectively? What's the difference between them?

DR is digital radiography, that is, digital filming. The patient images taken by DR need to be sent out through the network, such as diagnostic platform and equipment for printing films. The medical network transmission protocol is called DICOM.

DX is a mode of DICOM image transmission. In the mode, there are DX CR RF XA, etc., where DX corresponds to the image of DR. The image in DX mode contains not only the gray level of the image, the patient's name, age and other information, but also the body position information (such as whether the patient stands forward or left when taking pictures). The image mode taken by CR is CR, which does not contain body position information. Of course, if the image taken by DR does not need body position information, it can also be simplified as CR mode transmission.

The difference between DX and DR is that DX serves DR, DR is signal and DX is mode.

DR refers to a new digital X-ray photography technology directly controlled by computer, that is, X-ray information penetrating human body is converted into digital signals by using amorphous silicon flat panel detector, and images are reconstructed by computer and a series of image post-processing. DR system mainly includes X-ray generator, direct conversion flat panel detector, system controller, image monitor and image processing workstation. Due to the adoption of digital technology, DR can perform various image post-processing according to clinical needs, such as automatic image processing technology, edge enhancement and sharpness technology, zoom roaming, image mosaic, window width and window level adjustment of the region of interest, distance, area, density measurement and other rich functions. In addition, due to the wide dynamic range of DR technology, the high detection efficiency (DQE) of X-ray photons and the wide exposure latitude, a good image can be obtained even if the exposure conditions are slightly poor. The appearance of DR broke the traditional concept of X-ray image and realized the transformation from analog X-ray image to digital X-ray image that people dreamed of. Compared with CR (Computerized X-ray Photography) system, DR has more advantages.

Baidu encyclopedia -DR