radiographic artifacts 2.ppt

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RADIOGRAPHIC ARTIFACTS

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for radiology students

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RADIOGRAPHIC ARTIFACTS

TYPES OF ARTIFACTS

• PROCESSING

• EXPOSURE

• HANDLING AND STORAGE

PROCESSING ARTIFACTS• HYPORETENTION• PI-LINES• GUIDE SHOE MARK• STATIC • ENTRANCE ROLLER MARK• CRINKLE MARK• FINGER MARKS• EMULSION PICK-OFF• WATER STAIN

EXPOSURE ARTIFACTS

• MOTION• IMPROPER POSITIONING• POOR FILM SCREEN CONTACT• DOUBLE EXPOSURE• FOREIGN OBJECTS• BACK-SCATTER• CASSETTE UPSIDE-DOWN• BROKEN CASSETTE• IMPROPER USE OF GRID

HANDLING & STORAGE ARTIFACTS

• LIGHT FOG

• RADIATION FOG

• STATIC

• SCRATCHES

• HYPORETENTION

ROLLER MARKS

LIGHTER IN THE POCKET

PATHOLOGY