What is an artifacts in radiography?

Radiographic artifacts commonly occur, particularly with hand processing. The artifacts may originate between the X-ray tube and the cassette as extraneous material on the patient or contamination of positioning aids, or result from debris within the cassette, or damage to, or staining of the screens.

When can radiographic artifacts be created?

Image artifacts can be created when backscattered radiation reaches detector elements through the back of the detector (3). Description of Artifact Appearance. —The shadow image of detector electronics appears superimposed on a patient image in Figure 5a.

Why a white line might appear as an artifact for CR and DR?

Dust or debris was present on the light guide as the CR plate was fed through the CR reader. The resultant artifact is a thin white line (white arrows) that spans the length of the radiograph. Foreign bodies in the cassettes occur when using CR, but not DR, because DR does not have a cassette.

What is processing in radiology?

Processing transforms the latent image into a visible image. The term for the. several procedures that collectively produce the visible, permanent image is processing. and consists of developing, rinsing, fixing, washing and drying procedures. 1.

What are the most common radiographic artifacts?

Common artifacts (all forms of radiography)

motion artifact.
image compositing (or twin/double exposure)
grid cut-off.
radiopaque objects on/external to the patient (e.g. jewelry (e.g. necklaces, piercings), clothing (e.g. buttons), hair (e.g. ponytail, hair braids etc.).
debris in the housing.

What are the steps in film processing?

FILM-PROCESSING SOLUTIONS. Film processing, whether it is manual or automatic, comprises five basic steps: (1) developing, (2) rinsing or stop bath, (3) fixing, (4) washing, and (5) drying.

What are the five steps in processing dental radiographs?

Five Steps in Processing Dental Radiographs:

Development.
Rinsing.
Fixation.
Washing.
Drying.

What are the artifacts in digital radiography?

These systems included a Digital Diagnost (Philips Healthcare), Axiom Aristos MX (Siemens Healthcare), Definium 8000 (GE Healthcare), and DRX-1 (Carestream Health). Patient image artifacts are presented with the image processing used clinically.

Are there any artifacts caused by Image Processing?

Image Processing Errors Digital image processing is described in more detail in this supplement,8but some of the common artifacts caused by image processing are discussed here. As stated previ- ously, the wide dynamic range attainable with digital X-ray detectors far exceeds that attainable with ﬁlm/screen.

What are the different types of X-ray artifacts?

X-ray artifacts. Artifacts can present in a variety of ways including abnormal shadow noted on a radiograph or degraded image quality and have been produced by artificial means from hardware failure, operator error and software (post-processing) artifacts. There are common and distinct artifacts for film, computed and digital radiography .

Which is an example of an artifact on an image?

An artifact on an image is a feature that does not correlate with the physical properties of the subject being imaged and may confound or obscure interpretation of that image. In this article, examples of artifacts from flat-panel detector–based digital radiographic systems are presented.