The harmful effects of ionizing radiation, as employed in a variety of medical imaging procedures, have
been well studied and documented. To minimize risk to patients, operators must continually assess the
dose rate and cumulative dose to the patient at each area of exposure. We have developed a computer
graphic dose management display system which provides this operator feedback. The system is comprised
of a signal processing module which reads the state of a fluoroscopy machine, a transmission ionization
chamber for exposure measurement, and a visualization of the patient that displays the current level of
radiation intensity and accumulated dose at every location on the body. The system shows the beam
projection and orientation of the machine and color-coded dose metrics on the patient graphic model in real
time. Additionally, a database system has been incorporated to allow for recording and playback of the
entire procedure.
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