Ultrasonic/optical dual-mode imaging probe and imaging method for endoscopic imaging

Abstract

The invention provides an ultrasonic / optical dual-mode imaging probe for endoscopic imaging. The ultrasonic / optical dual-mode imaging probe comprises an optical module, an ultrasonic component as well as a reflection element, wherein the optical module is used for transmitting and receiving optical signals of optical imaging and consists of a light guide component and a position fixing component; the ultrasonic component is used for transmitting and receiving ultrasonic signals in ultrasonic imaging; an optical reflection boundary and an ultrasonic reflection boundary are arranged on the reflection element; the optical module, the reflection element and the ultrasonic component are sequentially arranged in the axial direction of the imaging probe, so that the reflection element can simultaneously reflect optical signals and ultrasonic signals laterally. In addition, the invention further provides an imaging method for double-mode imaging by using the dual-mode imaging probe. By adopting the imaging probe and the imaging method, on the premise that the diameter of the probe is relatively small, optical and ultrasonic dual-mode imaging can be performed on one same tube cavity cross section at one same moment, so that parts with relatively small tube cavity diameters can also be easily checked and diagnosed, and disease checking and diagnosis are facilitated.

Description

technical field [0001] The invention relates to biomedical imaging technology, in particular to an ultrasonic / optical dual-mode imaging probe for endoscopic imaging and an imaging method using the probe. Background technique [0002] Endoscopic imaging technology is widely used in image diagnosis and image-guided therapy in many fields such as digestive tract, cardiovascular system, urinary system, and respiratory system, which greatly improves the accuracy of disease inspection. Common endoscopic imaging techniques include ultrasonic endoscopic imaging techniques and optical endoscopic imaging techniques. Among them, ultrasonic endoscopic imaging technology has excellent penetrating ability to biological tissues due to the minimal scattering and attenuation of ultrasound by tissues, and can realize ultra-large depth imaging of several millimeters to several centimeters, and obtain overall structural images of biological tissues or organs However, the image resolution of ul...

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Problems solved by technology

[0004] However, in the above-mentioned axially arranged dual-mode probes, due to the positional deviation between the optical probe and the ultrasonic probe in the axial direction, the ultrasonic image and the optical image obtained by the dual-mode probe at the same time are not in the same cross-section. During the scanning process, the lumen cannot avoid disturbance and deformation, resulting in inconsistency between the optical image and the ultrasonic image of the same position in the later stage, which affects the diagnosis of the disease

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