Nuclear medicine imaging apparatus and nuclear medicine imaging system

摘要

A PET apparatus includes a clock unit. The clock unit includes: a time measuring unit that measures a time; and a reference time receiving unit that receives a reference time. The PET apparatus also includes a detection time revising unit. By using the reference time received by the reference time receiving unit, the detection time revising unit revises detection times recorded by using the time measured by the time measuring unit. For example, the detection time revising unit revises the detection times by calculating a time error that occurred during an image taking period of a predetermined image taking process by using the time measured by the time measuring unit and the reference time received by the reference time receiving unit and further distributing the calculated time error to each of the detection times recorded during the image taking period.

主权项

1. A nuclear medicine imaging apparatus configured to detect radiation emitted by a nuclide with which a subject is dosed and to reconstruct a nuclear medicine image, comprising:
a clock configured to measure a time; a reference time receiver configured to receive a reference time used as a reference for a measuring of the time; a detection time memory configured to record detection times at each of which a radiation is detected, by using the time measured by the clock; and a revising circuit configured to revise the detection times recorded by the detection time memory, by using the reference time received by the reference time receiver, wherein the revising circuit revises the detection times by calculating a time error that occurred during an image taking period of a predetermined image taking process, by using a first time error and a second time error, and further distributing a calculated time error to each of the detection times recorded by the detection time memory during the image taking period, the first time error is a time error between the time measured by the clock and the reference time received by the reference time receiver at an image taking process starting time in an image taking, and the second time error is a time error between the time measured by the clock and the reference time received by the reference time receiver at an image taking process ending time in the image taking.