PHOTOACOUSTIC APPARATUS, SUBJECT-INFORMATION ACQUISITION METHOD, AND PROGRAM

摘要

A photoacoustic apparatus according to the present invention includes an electrical stimulation unit configured to apply a voltage to a subject while light irradiation is being performed a plurality of times, and a processing unit configured to acquire, among a plurality of signals, subject information using at least part of signals corresponding to photoacoustic waves generated in a period from an extraction start timing determined in accordance with an application start timing of the voltage to when a first time period starting from the application start timing and ending at an application end timing of the voltage passes, while not using a signal corresponding to a photoacoustic wave generated outside the period from the extraction start timing to when the first time period passes.

主权项

1. A photoacoustic apparatus comprising:
a light irradiation unit configured to irradiate a subject with pulsed light a plurality of times; a receiving unit configured to receive a photoacoustic wave generated by irradiation of the subject with pulsed light emitted from the light irradiation unit, and output a plurality of signals corresponding to light irradiation performed a plurality of times; an electrical stimulation unit configured to apply a voltage to the subject while light irradiation is being performed the plurality of times; and a processing unit configured to acquire subject information for a target area in accordance with the plurality of signals, wherein the processing unit acquires, among the plurality of signals, the subject information using at least part of signals corresponding to photoacoustic waves generated in a period from an extraction start timing determined in accordance with an application start timing of the voltage to when a first time period starting from the application start timing and ending at an application end timing of the voltage passes, while not using a signal corresponding to a photoacoustic wave generated outside the period from the extraction start timing to when the first time period passes.