A photoacoustic ultrasound dual-mode simultaneous imaging system

Abstract

The invention relates to an opto-acoustic and ultrasonic bimodal synchronous imaging system, which is applied to diagnostic imaging of tested tissues in the medical field. The imaging system comprises a host machine, a pulse laser, as well as a multi-channel ultrasonic probe, a data acquisition module, a data processing and image reconstruction module and a display module which are sequentially connected, wherein the host machine is connected to the multi-channel ultrasonic probe and the pulse laser; the multi-channel ultrasonic probe clings to the tested tissues; and the pulse laser is opposite to the tested tissues. Compared with the prior art, the imaging system disclosed by the invention has the advantages of being synchronous, precise, consistent in proportion and the like.

Description

technical field [0001] The invention relates to the fields of photoacoustic imaging and ultrasonic imaging, in particular to a photoacoustic ultrasonic dual-mode synchronous imaging system. Background technique [0002] Ultrasound imaging for medical diagnosis is widely used in medical diagnosis due to its advantages of non-ionizing radiation, high-resolution imaging of anatomical structures, and low cost. However, ultrasound imaging is generally sensitive to tissue structures and blood flow movements with differences in acoustic impedance, and is not specific to other physical and chemical properties of tissues, so the diagnostic function is limited. In many medical clinical diagnoses, ultrasound imaging needs to be combined with other radiological diagnostic methods such as MRI, CT or X-ray to provide doctors with more specific information about the lesion. [0003] Photoacoustic imaging is a medical imaging method newly developed in recent years. It can provide high-reso...

AI Technical Summary

Problems solved by technology

This is due to the closure of the hardware and algorithm interfaces of existing ultrasound imaging equipment: on the one hand, the work repetition frequency of ultrasound excitation and pulsed laser excitation is different, so the synchronization between ultrasound images and photoacoustic images is poor, and the phenomenon of frame loss and frame leakage is relatively high. On the other hand, it is necessary to write additional codes to image the photoacoustic data. The inconsistency between the algorithms of ultrasound imaging and photoacoustic imaging leads to the inconsistency between the aspect ratio of the photoacoustic image and the ultrasound image, which cannot reflect the actual tissue information. Delay Compensation Processing

Images