Is there a lot of radiation from multiple exposures in digital DR Radiography?


DR imaging, also known as digital radiography, belongs to a type of X-ray imaging, which is widely used in medicine to examine the clavicle, ribs, pleura, back, and spine for the presence of lesions.

The principle of digital DR photography is to use X-rays that pass through the body and do not act directly on the film, but are received by a detector and converted into a digital signal, which is processed by a computer to obtain an image, digitize the captured information, and then reconstruct the original image on a monitor after computer processing.

Since digital DR photography is a radiological examination, ionizing radiation is generated with each exposure, so too many exposures should be avoided. How many exposures are usually made for digital DR photography? Actually, a second exposure for DR is normal, and sometimes three or more exposures are necessary.

Digital DR Photography Equipment

First of all, multiple exposures are very common, the re-shooting rate of digital DR photography is much higher than film photography, the reason is that DR photography images are displayed directly on the monitor, there will be no waste of film, and the technical requirements are low, which will lead to a part of the body often need 2-3 exposures in order to get a satisfactory result. This is especially true when dealing with obese patients, and infants and children who are not very cooperative.

Then, taking the common chest front and side DR, one exposure is needed for the chest front and one for the chest side, which is two exposures.

Finally, many people worry about the radiation problem of multiple exposures, in fact, nowadays the DR equipment is very advanced, such as PLD7100A, in order to realize the radiation low-dose management, configured with the DAP exposure dose display, automatic exposure control, removable filter grids and fully automatic motorized beam limiter four major functions, which can effectively control the dose intake without worrying about the radiation effects brought by multiple exposures. The DAP is equipped with four functions to realize low dose management.


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