| 摘要 |
PURPOSE:To make clear the timewise relation of an RI (radioactive isotope) distribution image and a living body signal, by writing a digitized living body signal in an area corresponding to the outside of the visual field of the scintillation camera of image memory at every definite time. CONSTITUTION:The position signals x, y from a scintillation camera are set to ADR registers 5, 6 through A/D converters 2, 3 and a change-over device 4 to indicate the address of image memory 7. When a ''H'' signal J is outputted from timer 12 after a definite time is elapsed, a FF circuit 14 is set and change-over devices 4, 9 are changed over while the output signals x, y of x, y ADR registers 15, 16 are set to the x, y ADR registers 5, 6. When the output signal J of the timer 12 comes to ''L'', the living body signal detected by a detector 11 is set to a data register 10 through a wave form A/D converter 13. This digitized living body signal is written in the predetermined area in the empty area of the image memory 7. |
