The ultrasonic assisted GMAW （U-GMAW） method is proposed to achieve a more stable welding process and better weld quality. Tbe U-GMA W system is dereloped, which consists of power supplies, ultrasonic vibration syst...The ultrasonic assisted GMAW （U-GMAW） method is proposed to achieve a more stable welding process and better weld quality. Tbe U-GMA W system is dereloped, which consists of power supplies, ultrasonic vibration system and specially designed u＇elding torch. The U-GMA W process and eonventional GMA W process are compared through bead-on-plate welding. The weld beads arc continuous and well protected, while the weld surface appearances by GMA W and U-GMA W are apparently diffierent. The metal transfe ,node changes from globular transfer to short-circuiting transfer after ultrasonic wave is applied onto the arc.展开更多
目的:研究超声引导辅助微创旋切术应用于乳腺良性病灶中的有效性及安全性。方法:选取鄂州市中医医院2022年5月—2023年5月收治的70例乳腺良性病灶患者。将其以系统化随机法分为超声引导组(n=35)及传统组(n=35)。传统组开展传统开放手术...目的:研究超声引导辅助微创旋切术应用于乳腺良性病灶中的有效性及安全性。方法:选取鄂州市中医医院2022年5月—2023年5月收治的70例乳腺良性病灶患者。将其以系统化随机法分为超声引导组(n=35)及传统组(n=35)。传统组开展传统开放手术治疗,超声引导组则开展超声引导辅助微创旋切术治疗。对比两组有效性、安全性、血清应激反应指标水平、乳房外观评分。结果:超声引导组手术时长、切口愈合时长及住院天数均短于传统组,且术中出血量少于传统组,差异均有统计学意义(P<0.05)。超声引导组术后并发症发生率低于传统组(5.71% vs 25.71%),差异有统计学意义(P<0.05)。术后1 d,两组各项应激反应指标水平均高于术前,但超声引导组均低于传统组,差异均有统计学意义(P<0.05)。超声引导组各项乳房外观评分均高于传统组,差异均有统计学意义(P<0.05)。结论:超声引导辅助微创旋切术应用于乳腺良性病灶中的有效性及安全性均较佳,且能有效减轻应激反应,对乳房外观的影响较小。展开更多
Objective: The ultrasonic findings of papillary thyroid carcinoma were analyzed by acoustic power pulse imaging, and the relationship between the expression of osteopontin and the expression of osteopontin was analyze...Objective: The ultrasonic findings of papillary thyroid carcinoma were analyzed by acoustic power pulse imaging, and the relationship between the expression of osteopontin and the expression of osteopontin was analyzed. Methods: Using color Doppler ultrasound in patients with lesions, morphology, internal echo, calcification and blood flow of the situation, and then switch to ARFI VTI mode and VTQ mode, VTI were measured with two-dimensional area and area ratio of VTQ mode SWV;osteopontin expression was detected in two groups of patients with thyroid tissues. Analysis of difference between the two the group index by using SPSS18.0 software, Pearson linear correlation method is used to analyze the area ratio and SWV value of thyroid tissue expression correlated with OPN. Results: The shape of papillary thyroid carcinoma nodules showed that the boundary was irregular and the shape of the nodules was burr. The shape of benign nodules was more than 1 with low echo in the interior. The shape of benign nodules showed clear boundary and middle hyperechoic in the interior. No calcification occurred in most lesions in that observation group, the area ratio in VTI mode is obviously higher than that of the control group, the difference was statistically significant (T=7.313, P=0.000), the SWV value in the VTQ model of the observation group was also significantly higher than that in the control group, the difference was statistically significant (t=43.334, P=0.000). The expression of OPNmRNA in the observation group was significantly higher than that of the control group , and the difference was statistically significant (t=8.894, P=0.000). Pearson linear correlation analysis showed that there was a significant positive correlation between OPNmRNA expression in papillary thyroid carcinoma and area ratio in VTI model and SWV course in VTQ model (r=0.235, 0.264;P<0.05). Conclusion: It is important for the diagnosis of papillary thyroid carcinoma to use the technique of acoustic power pulse imaging combined with the detection o展开更多
文摘The ultrasonic assisted GMAW （U-GMAW） method is proposed to achieve a more stable welding process and better weld quality. Tbe U-GMA W system is dereloped, which consists of power supplies, ultrasonic vibration system and specially designed u＇elding torch. The U-GMA W process and eonventional GMA W process are compared through bead-on-plate welding. The weld beads arc continuous and well protected, while the weld surface appearances by GMA W and U-GMA W are apparently diffierent. The metal transfe ,node changes from globular transfer to short-circuiting transfer after ultrasonic wave is applied onto the arc.
文摘目的:研究超声引导辅助微创旋切术应用于乳腺良性病灶中的有效性及安全性。方法:选取鄂州市中医医院2022年5月—2023年5月收治的70例乳腺良性病灶患者。将其以系统化随机法分为超声引导组(n=35)及传统组(n=35)。传统组开展传统开放手术治疗,超声引导组则开展超声引导辅助微创旋切术治疗。对比两组有效性、安全性、血清应激反应指标水平、乳房外观评分。结果:超声引导组手术时长、切口愈合时长及住院天数均短于传统组,且术中出血量少于传统组,差异均有统计学意义(P<0.05)。超声引导组术后并发症发生率低于传统组(5.71% vs 25.71%),差异有统计学意义(P<0.05)。术后1 d,两组各项应激反应指标水平均高于术前,但超声引导组均低于传统组,差异均有统计学意义(P<0.05)。超声引导组各项乳房外观评分均高于传统组,差异均有统计学意义(P<0.05)。结论:超声引导辅助微创旋切术应用于乳腺良性病灶中的有效性及安全性均较佳,且能有效减轻应激反应,对乳房外观的影响较小。
文摘Objective: The ultrasonic findings of papillary thyroid carcinoma were analyzed by acoustic power pulse imaging, and the relationship between the expression of osteopontin and the expression of osteopontin was analyzed. Methods: Using color Doppler ultrasound in patients with lesions, morphology, internal echo, calcification and blood flow of the situation, and then switch to ARFI VTI mode and VTQ mode, VTI were measured with two-dimensional area and area ratio of VTQ mode SWV;osteopontin expression was detected in two groups of patients with thyroid tissues. Analysis of difference between the two the group index by using SPSS18.0 software, Pearson linear correlation method is used to analyze the area ratio and SWV value of thyroid tissue expression correlated with OPN. Results: The shape of papillary thyroid carcinoma nodules showed that the boundary was irregular and the shape of the nodules was burr. The shape of benign nodules was more than 1 with low echo in the interior. The shape of benign nodules showed clear boundary and middle hyperechoic in the interior. No calcification occurred in most lesions in that observation group, the area ratio in VTI mode is obviously higher than that of the control group, the difference was statistically significant (T=7.313, P=0.000), the SWV value in the VTQ model of the observation group was also significantly higher than that in the control group, the difference was statistically significant (t=43.334, P=0.000). The expression of OPNmRNA in the observation group was significantly higher than that of the control group , and the difference was statistically significant (t=8.894, P=0.000). Pearson linear correlation analysis showed that there was a significant positive correlation between OPNmRNA expression in papillary thyroid carcinoma and area ratio in VTI model and SWV course in VTQ model (r=0.235, 0.264;P<0.05). Conclusion: It is important for the diagnosis of papillary thyroid carcinoma to use the technique of acoustic power pulse imaging combined with the detection o
