A method of taking an extended X-ray photograph by using an imaging plate
or a computed radiography cassette devised to contain a longer digital
X-ray image such that a longer complete image of a subject may be rendered
such that no diagnostic information is lost in examinations of scoliosis
or the long bones of the body. When the cassette is exposed to X-rays
through an object, an X-ray transmission image of the object is recorded
on a stimulable phosphor sheet and, at the same time, the X-ray film is
exposed to light instantaneously emitted from the stimulable phosphor
sheet upon exposure to X-rays to record an extended photographic latent
image of the X-ray transmission image of the object on the X-ray film or a
photostimulable phosphor sheet alone.
