Radiation tomography apparatus
AssigneeShimadzu Corporation
InventorJunichi Ohi
Life of this patent
Estimating the term…
Abstract
Provided is a preview image generating section configured to generate preview image during radiography for the purpose of providing a radiation tomography apparatus that allows suppression of unnecessary imaging time by displaying a condition of an image during the radiography in the process of diagnosis. An operator can recognize from the preview image how a subject appears in the image in a radiation tomography apparatus also during the radiography. This allows stopping the radiography before a diagnostic image having a suitable level of clearness for diagnosis is generated. As a result, a shorter imaging time is achieved, and burden to the subject can be suppressed.
Claims7
A radiation tomography apparatus comprising:
- a detector ring having radiation detectors for detecting radiation, the radiation detectors being arranged annularly;
- an input device configured to receive a stop command to temporarily stop the detection ring detecting radiation and configured to receive a resuming command to resume the detection ring detecting radiation;
- a preview image generating device configured to generate a plurality of first preview images successively one for every image generation time during a detecting radiation session before the input device receives the stop command in accordance with first detection data generated from the detector ring before the input device receives the stop command, and configured to generate a plurality of second preview images successively one for every image generation time during the detecting radiation session after the input device receives the resuming command in accordance with second detection data generated from the detector ring after the input device receives the resuming command, each preview image having a generating source of an annihilation radiation-pair mapped therein;
- a diagnostic image generating device configured to map the generating source of the annihilation radiation-pair and configured to generate a diagnostic image after the detector ring completes the detecting radiation session based on the second detection data without using the first detection data when the input device has received the stop command during the detecting radiation session and based on the first detection data when no stop command has been received during the detecting radiation session;
- and
- a display device configured to display the preview images or the diagnostic image.
A method of providing a diagnostic image of a body part using a radiation tomography apparatus comprising:
- receiving detection data generated from a detector ring having radiation detectors for detecting radiation, wherein the radiation detectors are arranged annularly;
- generating at least one preview image during a detecting radiation session of the radiation tomography and prior to the completion of the detecting radiation session;
- displaying the at least one preview image during the detecting radiation session;
- temporarily stopping the detecting radiation session based on a stop command received by an input device;
- resuming the detecting radiation session based on a resume command received by the input device;
- generating a diagnostic image of the body part, after the detecting radiation session of the radiation tomography apparatus has been completed, based on the detection data generated after the resuming of the detecting session without the detection data generated prior to the temporarily stopping of the detecting session;
- and
- displaying the diagnostic image of the body part.
Dependencies are inferred from the claim text.