| 摘要 |
Even when an insertion object is inserted to a deep position of a subject or even when the insertion object is inserted into the subject at an angle close to a right angle, it is possible to confirm the position of the insertion object in a photoacoustic image. The insertion object is, for example, a hollow puncture needle 15 that includes an opening at a tip thereof. The puncture needle 15 includes a light guide member 152 that guides light emitted from a first light source to the vicinity of the opening, and a light emitting portion 153 that is provided in the vicinity of the opening and emits the light guided by the light guide member 152. First photoacoustic waves, which are caused by the light emitted from the light emitting portion 153, are generated in the puncture needle 15. After the puncture needle is inserted into the subject, the first photoacoustic waves are detected and a first photoacoustic image is generated on the basis of the first photoacoustic waves. |
