Diagnosis of Biliary Tract Disease Based on Ultrasound Tissue Harmonic Imaging

With the deepening of ultrasound imaging research, studying nonlinear phenomena in medical ultrasound will help people to further improve the existing diagnostic level. Harmonic imaging technology generated in recent years is an effective new technology for nonlinear acoustics in ultrasonic diagnosis. Patients with biliary tract lesions generally have few symptoms, which are often detected by chance during physical examination. Ultra-sonography is currently the preferred diagnostic method for biliary tract disease. The application of tissue harmonic imaging (THI) can effectively eliminate many near-field misdiagnosed images, enhance the tissue echo of deep tissues or organs, and significantly improve signal-to-noise ratio and resolution. At the same time, it can better display the subtle features of biliary diseases, thereby reducing the rate of missed diagnosis and improving the accuracy of diagnosis. Therefore, this study aimed to observe the changes of ultrasound images in the lesions and surrounding tissues of several biliary lesions by ultrasound tissue harmonic imaging technology, and realized the diagnosis in the early stage of the disease by means of tissue harmonic imaging technology, then provided objective quantitative indicators for the diagnosis of biliary diseases. Also, this study confirmed that tissue harmonic imaging technology can significantly improve the ultrasound image resolution of biliary tract disease, clearly showing the sub-acute gallbladder wall, gallbladder wall, gallbladder cavity in the acute and chronic inflammation and the presence of subtle changes in the tumor. This can provide a rich diagnostic value for the clinic and has practical significance for clinical treatment.