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Identification of the radiograph
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It is helpful , and in some
circumstances essential, to have certain information incorporated in the
radiograph, so that it is available when the film is examined subsequently .
This may include:
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a. An " L " or " R " to identify
a particular limb or side of the patient .
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b. Some indication of the time
which has elapsed since the administration of a contrast medium .
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c. The date of radiography.
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d. Some means of identifying the
particular patient.
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This information may be added
to the radiographic during radiography, during processing, or subsequently when
the film is dry. Obviously the earlier the details can be attached to the film
the less the risk of mistake occurring.
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Writ the owner’s name
together with other relevant information in pencil on the top right – hand
corner of the film, if other methods of identification are not used Close the
cassette.
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Identification During
radiography
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The simplest way of carrying
this out is by placing lead letters or numbers on top of the film holder (preferably fixed with Sellotape or similar radio translucent material) before
making the radiographic exposure .
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" L ", " R " and similar
markers should be always be added at this stage. If this information is
attached to the film later it is only too easy to make mistake in identifying a
particular side of the patient .
Identification During
Processing
Essential information can be
penciled on a corner of the film in the dark room immediately before processing
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Care
and storage of the dry radiograph
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The following notes on the
care and storage of dry films may be useful:
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Make sure the films are dry.
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The practice of keeping films
in their original paper protective folders from the film box is cheap, but less
acceptable when many films are to be stored . It is more convenient to keep them
in film storage envelops .
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Film envelopes can be filed
either in a cabinet or on open shelves. It will be found that it is much easier
to file films if all the envelopes are the same size.
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Films of outstanding interest
can be further protected by sealing them in polythene covers from which they
need not to removed when handling and viewing.
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X-ray Film Processing Sequence
Preliminary
Check that the developer is
at the correct level and temperature and has been stirred . Select the correct
film hanger. Switch on safe –lights. Switch off white light.
Dry
Bench
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Open the back plate of the
cassette and gently shake the top well so the film can be grasped at its edge by
the finger and thumb (photographa).
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Loading the hanger if a
channel type hanger is used, hold it in the left hand and slide the film into
the channels and close the top hinge (photograph b).
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A tension clip hanger is
loaded by inserting the film first into the bottom clips, then turning the
hunger the right way up , insert the film into the upper spring clips
(photograph c).
Loading the hunger
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If a
channel type hunger is used hold it in the left hand and slide the film into the
channels and close the top hinge.
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A
tension clip hunger is loaded by inserting the film first into the bottom clips
then turning the hunger the right way up, insert the film into the upper spring
clips.
Identification
Wet
Bench
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Place the film in the
developer (photographed) and agitate two or three times to remove any air
bubbles on the film surface . Place the lid on the developer tank .
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Set the interval timer.
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If the hands are wet, rinse
and dry thoroughly.
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Reloading the cassette
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Open the lid of the X-ray
film box and extract a film in its folder by its edge . Film emulsion is
sensitive to pressure, so don’t fold or buckle film by careless handling.
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Open the cassette.
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Pull back the top leaf
of the protective holder, twist the wrest and drop the film into the well of the
cassette. Withdraws the folder. Run a finger around the edge of the well to make
sure that the film is not protruding over the edge.
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Close the cassette
and replace the top on the film box.
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At the end of the
developing period, left out the film and allow the solution to drain back into
the developer tank for a few seconds.
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Rinse in water for
about 10 seconds.
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Place
the film in the fixer and wait for 30 seconds.
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The white light can
now be switched on.
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When the milky
appearance caused by the dissolving silver halides had disappeared the film can
be viewed for technical quality and professional diagnosis.
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The film should be
washed in running water for half an hour.
Drying
Radiographic
Interpretation
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The radiograph should not be read when wet. A wet film should be examined
only to see if the exposure is
correct, the desired anatomical areas have been included
on the film, the positioning is adequate,
and radiographic detail is sharp.
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A
final conclusion concerning the radio-graphic study should be made only
from a dry radiograph.
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