Items tagged “x-ray”
8 results found
Article
X-ray artifacts
X-ray artifacts can present in a variety of ways including abnormal shadows 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 fi...
Article
Kilovoltage peak
Kilovoltage peak (kVp) is the peak potential applied to the x-ray tube, which accelerates electrons from the cathode to the anode in radiography or computed tomography. Tube voltage, in turn, determines the quantity and quality of the photons generated. An increase in kVp extends and intensifies...
Article
Intermetatarsal angle
The intermetatarsal angle is a measurement used to assess hallux valgus and metatarsus primus varus deformities.
Terminology
The term intermetatarsal angle alone typically refers to assessment of the first and second metatarsals. Occasionally the term first intermetatarsal angle is used to spe...
Article
International Day of Radiology
The International Day of Radiology (IDOR or IDoR) is an annual celebration held on the anniversary of the date of the discovery of x-rays by Wilhelm Roentgen, i.e. 8 November 1895. The eleventh annual celebration was held on 8 November 2022 12.
History
Since 2007 World Radiography Day has bee...
Article
Gastric bubble
The gastric bubble is a radiolucent rounded area generally nestled under the left hemidiaphragm representing gas in the fundus of the stomach.
On a lateral radiograph, the gastric bubble is usually located between the abdominal wall and spine. It can be seen on chest or abdominal plain films. I...
Article
Skeletal survey (overview)
The skeletal survey is a radiographic series performed to survey the entire skeleton (axial skeleton, upper and lower limbs) for pathology or injury. Specific projections vary depending on the clinical indication and the institution's protocol.
There are various clinical indications that may wa...
Article
Dead pixel artifact
Dead pixel artifact is an artifact seen in direct digital radiography systems where a detector element fails to receive a proper signal and therefore appears as a bright white dot in an x-ray image.
A defective pixel on the display monitor can also lead to a white dot appearance but it will not...
Article
Pediatric foot (medial oblique view)
The medial oblique foot view for pediatrics is one of three views performed to examine the phalanges, metatarsals and tarsal bones of the foot.
Indications
This projection is useful in diagnosing fractures; particularly 5th metatarsal fractures, soft tissue effusions, joint space abnormalities...
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