With the addition of computer technology, digital radiography has become a much more efficient, cost effective, and an even safer method of producing diagnostic images. While traditional X – rays are considered safe, digital X – rays produce 80% less radiation than traditional.
Digital radiography (DR) is an advanced form of x – ray inspection which produces a digital radiographic image instantly on a computer. This technique uses x – ray sensitive plates to capture data during object examination, which is immediately transferred to a computer without the use of an intermediate cassette.
There are two types of digital imaging systems used in intraoral radiography – computed radiography (CR) and direct radiography (DR). CR uses a photostimulable phosphor (PSP) plate to capture the image.
Digital Radiography Advantages: Reducing Cost and Space Reduced radiation. Reduced cost due to the elimination of chemical processors, processor maintenance , and filing and mailing jackets. Reduced space requirement — no dark room is required, and the need to dedicate space for cabinets of analog images is eliminated.
Magnetic resonance imaging produces clearer images compared to a CT scan . In instances when doctors need a view of soft tissues, an MRI is a better option than x-rays or CTs. MRIs can create better pictures of organs and soft tissues, such as torn ligaments and herniated discs, compared to CT images.
More cost effective and efficient. Digital X – ray technology is easily available and offered at a low cost to medical institutions. The cost effectiveness of a digital X – ray versus a traditional one is due to the fact that film is costly . It is not only expensive to purchase, but also costs to be developed.
Digital x – rays use a similar machine for generating the radiation. To make it even better , the radiation that’s needed for a digital dental X – ray about ¼ of what was used in traditional films . This faster imaging process allows us to provide more efficient care to our patients while valuing your personal time.
Computed radiography ( CR ) cassettes use photo-stimulated luminescence screens to capture the X-ray image, instead of traditional X-ray film. Digital radiography (DR) systems use active matrix flat panels consisting of a detection layer deposited over an active matrix array of thin film transistors and photodiodes.
Hospitals with an existing analog system have the option to retrofit a detector, which typically costs $62,000 to $140,000 depending on the size and type of flat panel. New fully- digital portable X-ray units run about $125,000 to $235,000 depending on maximum power output options and type of detector selected.
The RadioVisioGraphy (RVG) imaging system1 commonly used in dentistry to take intraoral periapical radiographs features the latest innovations in digital radiography, delivering the highest image resolution (> 20 LP/mm). RVG consists of a sensor, monitor, and microcomputer components (Fig. 1).
“ Direct digital ” refers to sensors that send a digital image directly to a computer and is also knows as DR or digital radiography . “ Indirect digital ” uses reusable phosphor coated plates that are run through a scanner to obtain the digital image which is then sent to the computer.