Patent ID: 8864667
Filing Date: 2014-10-21
Classification: A61B

Abstract:
1. A biological information imaging method comprising the steps of: irradiating a sample with light at a first timing; irradiating the sample with the light at a second timing which is different from the first timing; detecting a first acoustic wave generated in the sample by irradiating the sample with the light at the first timing and converting the first acoustic wave into a first electric signal; detecting a second acoustic wave generated in the sample by irradiating the sample with the light at the second timing and converting the second acoustic wave into a second electric signal; obtaining a first image based on the first electric signal; obtaining a second image based on the second electrical signal; and obtaining a difference image representing a difference between the first image and the second image, wherein the sample is irradiated with the light at the second timing when a heart rate is different from that at the first timing.