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<p><b>OBJECTIVE</b>To conduct the preliminary positioning and qualitative research of high-frequency ultrasonic imaging atpoints (including tender points and trigger points) in neck-type cervical spondylosis and explore the relevant law so as to provide the evidence for the selection of acupuncture scheme.</p><p><b>METHODS</b>Thirty patients in compliance with the diagnostic criteria of neck-type cervical spondylosis were selected. The trigger points, tender points and placebo points were positioned on any of the three available oriented lines. The point-to-point high-frequency real-time dynamic ultrasonic imaging technology was used to scan and position each point and record the changes in ultrasound gradation anatomy and two-dimensional ultrasound in perimysium, two-dimensional and color Doppler ultrasonography and blood flow. The ultrasound characteristics were analyzed.</p><p><b>RESULTS</b>①Regarding the changes in ultrasound gradation anatomy and two-dimensional ultrasound in perimysium, the anatomic gradation at trigger points and tender points was in the sequence as cutaneous layer, subcutaneous fat layer, shallow muscular tissue layer, deep muscular tissue layer and vertebrae. The linear high echo presented in cutaneous layer; the low echo in subcutaneous fat layer; the linear high echo in muscular fasciae; the low echo in muscular layer and the clear linear echo in its perimysium; the high echo and declined posterior echo in vertebrae. Compared with the placebo points, 93.3% of trigger points (28/30) presented enhanced or thickened perimysium echo (<0.05), and 96.7% of tender points (29/30) presented enhanced or thickened perimysium echo (<0.05). The differences were not significant between the trigger points and the tender points (>0.05). ②In the two-dimensional ultrasonography, the clear linear echo presented in perimysium, the enhanced or thickened echo in perimysium of trigger points and tender points. In the color Doppler ultrasonography, the blinking unstable dotted blood flow signal or stable short rod-like blood flow signal presented in the trigger points and tender points. ③Regarding the condition of blood flow, 56.7% of trigger points (17/30) presented Ⅱ degree of color blood flow signal and 83.3% of tender points (25/30) presented Ⅱ degree of color blood flow signal; 0% of placebo points presented Ⅱ degree of color blood flow signal. Compared with the placebo points, the differences in the rate of Ⅱ degree of color blood flow signal were significant statistically at both the trigger points and the tender points (both<0.05). The difference was not significant between the trigger points and tender points (>0.05).</p><p><b>CONCLUSIONS</b>In the high-frequency ultrasound imaging at trigger points and tender points in neck-type cervical spondylosis, the ultrasound imaging characteristics present, which are similar between the trigger points and the tender points. The high-frequency ultrasound imaging is valuable in positioning and quantitative research ofpoints in cervical spondylosis and has a certain significance to guide treatment.</p>
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Objective To study the value of echocardiography in the diagnosis of myocardial infarction(MI) and its complica tions.Methods The examination data in 140 cases of MI were collected from January 2012 to January 2016 and performed the analysis and comparison.Results In the ultrasound examination results in 140 cases,120 cases appeared varying degrees of segmental ventricular wall motion abnormalities,its diagnostic rate to MI was 85.71％,which of EKG was 78.57％,the MI detection rate of echocardiography and ECG combined examination was 90.71％,which was higher than that of single use of echocardiography or ECG.With the coronary angiogra-phy results as the control,the detection rate of echocardiography for the coronary arterial lesion sits was 82.86 ％.Among 140 cases of MI,22 cases of complications(15.71 ％) were de-tected out by echocardiography,including 7 cases of true ventricular aneurysm(5.00 ％),4 cases of left ventricular mural thrombosis(2.86 ％),1 case of ventricular septal perforation(0.71％) and 10 cases of ischemic mitral regurgitation(7.14％).Conclusion Echocardiography has higher accuracy in the MI diagnosis,com-bining with ECG can further improve the diagnostic rate.
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Objective To investigate the time-effect relationship of angiogenesis induced by ultrasound.mediated microbubble destruction in the skeletal muscle of rats.Methods Forty-eight healthy SD rats were divided into 4 groups:ultrasound-mediated microbubble destruction group,ultrasound only group,microbubble only group and control group.In ultrasound-mediated mierobubble destruction group, microbubbles were inj ected by vein at a dose of 0.5 ml and the target skeletal muscle was radiated at 2.0W/cm2.In ultrasound only group,the target skeletal muscle was radiated at 2.0 W/cm2.In microbubble only group.microbubbles were injected by vein at a dose of 0.5 ml.The control rats were without ultrasound radiation and microbubbles.On the 3rd,7th,10th,14th,21st and 28th day after the ultrasound radiation,two rats in each group were sacrificed and the target skeletal muscle was harvested for HE staining to observe the microstructure of tissue,immunohistochemistry staining was used to count the microvessel density (MVD),enzyme 1inked inmmunosorbent assay(ELISA)was used to detect the expression of vascular endothelial grouth factor(VEGF).Results Angiogenesis was significant in ultrasound-mediated mierobubhle destruction group,but a little in ultrasound only group.There was not any angiogenesis in either microbubble only group or control group.MVD and VEGF expression of ultrasound-mediated microbubble destruction group arrived at a peak on the 1Oth day as well as on the 14th day of ultrasound group.Conclusions Ultrasound-mediated microbubble destruction can facilliate the endogenous secretion of VEGF quickly and more,and accelerate the angiogenesis in the skeletal muscle.