Abstract：Objective To investigate the clinical value of ultrasound real-time shear wave elastography (SWE) and plane wave
ultrasensitive blood flow imaging angio plus (AP) in patients with external humeral epicondylitis to observe the elasticity and
blood flow of extensor tendon in multiple modes. Methods A total of 72 patients with external humeral epicondylitis who were
admitted to our hospital from March 2019 to March 2020 were retrospectively enrolled as observation group. At the same time, 95
normal volunteers with asymptomatic elbow joints were selected as healthy control group. All subjects underwent conventional
ultrasound, SWE and AP tests. The ultrasonic characteristics of the total extensor tendon (total extensor tendon, internal echo, blood
flow distribution, calcification, peripheral bone, and effusion, etc.), maximum, minimum and average SWE shear wave velocity and
AP blood flow grade of the two groups were observed. Results The maximum value, minimum value and average value of shear
wave velocity of total extensor tendon in the observation group were lower than those in the control group, and the difference was
statistically significant (P<0.05). The blood flow grade 1-3 in the observation group was higher than that in the control group, and the
difference was statistically significant (P<0.05). The thickness of extensor tendon and the degree of injury were negatively correlated
with the maximum, minimum and average value of shear wave velocity (r=-0.663~-0.598, P<0.05), and positively correlated with
the grade of blood flow distribution (r=0.711, 0.737, P<0.05). When the maximum, minimum and average shear wave velocities
were 4.65, 2.71 and 3.57, respectively, the AUC values for predicting the occurrence of external humeral epicondylitis were 0.836,
0.864 and 0.887, respectively, indicating a high diagnostic efficiency. When blood flow grade ≥2, the AUC value of predicting the
occurrence of external humeral epicondylitis was 0.879, indicating a high diagnostic efficiency. Conclusion In patients with lateral
epicondylitis, the shear wave velocity of extensor tendon decreased significantly and the blood flow signal increased significantly,
which was significantly correlated with the total extensor tendon thickness and injury degree. SWE and AP techniques can sensitively
quantify the elasticity and blood supply of the extensor tendon, which can be used as an effective auxiliary diagnostic method to
evaluate the external epicondylitis of the humerus.
俞成杰，徐芳，瞿岳. 应用超声新技术对肱骨外上髁炎患者的伸肌总腱多模态观察[J]. 中国医疗设备, 2022, 37(11): 85-89.
YU Chengjie, XU Fang, QU Yue. Multimodal Observation of Extensor Common Tendon in Patients with External Humeral
Epicondylitis by Using New Ultrasonic Technology. China Medical Devices, 2022, 37(11): 85-89.
