| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image information obtaining apparatus for obtaining optoacoustic image data which reduce an artifact. <P>SOLUTION: An image information obtaining apparatus includes: a light source; a transducer which detects an acoustic wave and converts the acoustic wave to an electrical signal; a signal processing unit which generates image data using the electrical signal; and a storage unit which stores a reference acoustic signal produced by the transducer detecting an acoustic wave generated when light is irradiated from the light source onto a phantom having acoustic parameters and optical parameters substantially the same as a subject and converting the acoustic wave to an electrical signal. The image information obtaining apparatus is characterized in that the transducer produces a subject acoustic signal by converting the acoustic wave generated when light is irradiated onto a subject from the light source to an electrical signal, and the signal processing unit subtracts the reference acoustic signal from the subject acoustic signal and generates image data from the signal resulting from the subtraction. <P>COPYRIGHT: (C)2012,JPO&INPIT |
