5) Static marks - · PDF fileCont. b) Digital Radiography (Computed Radiography/ Direct...
Transcript of 5) Static marks - · PDF fileCont. b) Digital Radiography (Computed Radiography/ Direct...
P st p ssinPost-processing
a) Chemical (manual / automatic processor/ daylight)p y g1- Over or Underdevelopment 2- Chemical staining 3- Water spots 4- Clumping of silver
halide granuleshalide granules
Cont.6- finger print or pressure marks most common (Kink “nail” marks
or crescent-shaped “crimp” mark)
finger marks finger marks after exposureprior exposure. after exposure.
Cont. b) Digital Radiography (Computed Radiography/ Direct Radiography)1) Vertical or horizontal patterns of hyper-intense signal.
ContCont.
2) Pl t d l t i tif t 3) Ph t “ h t” i 2) Plate reader electronics artifact 3) Phantom “ghost” image
ContCont.6) Excessive edge enhancement artifact
5) Inappropriate image processing selection enhancement artifactprocessing selection