The Radiographic Quality Flashcards
a high quality radiograph must have a sharp image with ___________ ______ and ______
a high quality radiograph must have a sharp image with ADEQUATE DENSITY and CONTRAST
is the exactness of representation of the patient’s anatomy on a radiographic image
radiographic image quality
fidelity with which the anatomical structure that is being examined is imaged on the radiograph
radiographic image quality
ability to image small objects that have high subject contrast, such as bone-soft tissue interface or calcified lung nodule
spatial resolution
ability to distinguish anatomical structures of similar subject contrast such as liver-spleen and gray matter-white matter
contrast resolution
is a random fluctuation in the density of the image usually inherent in the system
noise
four sources of noise
film graininess
structure mottle
quantum mottle
scatter radiation
are any irregularity in the image not caused by the proper shadowing of the tissue by the primary x-ray beam
artifacts
According to ______, a quality radiographic image accurately represents the anatomic area of interest and information is well visualized for diagnosis
Fauber, 2013
overall quality of image is determined by:
_____________ of anatomic structures
_____________ of structural lines recorded
VISIBILITY of anatomic structures
ACCURACY of structural lines recorded
image brightness or density
contrast
visibility
spatial resolution or recorded detail
distortion
accuracy
2 types of radiographic quality
photographic quality
geometric quality
under of photographic quality are:
density/brightness
contrast
under of geometric quality are:
detail
distortion
