[Objectives] The research aimed to extract green pigment from leaves of Arctium lappa L. and inspect its stability. [Methods] Ultrasound assisted method was used. [Results] Water bath temperature had little impact on ...[Objectives] The research aimed to extract green pigment from leaves of Arctium lappa L. and inspect its stability. [Methods] Ultrasound assisted method was used. [Results] Water bath temperature had little impact on green pigment, and Al^(3+), Cu^(2+), Mg^(2+) and Zn^(2+) in metal ions greatly affected green pigment, while Fe^(3+) had very little impact on the stability of green pigment. pH did not basically affect green pigment of A. lappa L. [Conclusions] The extraction rate and stability of green pigment from leaves of A. lappa L. were higher, and it was one of materials suitable for extracting green pigment.展开更多
AIM To evaluate the efficacy of endoscopic ultrasoundguided fine needle aspiration(EUS-FNA) of pancreatic head cancer when pushing(push method) or pulling the echoendoscope(pull method).METHODS Overall, 566 pancreatic...AIM To evaluate the efficacy of endoscopic ultrasoundguided fine needle aspiration(EUS-FNA) of pancreatic head cancer when pushing(push method) or pulling the echoendoscope(pull method).METHODS Overall, 566 pancreatic cancer patients had their first EUS-FNA between February 2001 and December 2017. Among them, 201 who underwent EUS-FNA for pancreatic head lesions were included in this study. EUS-FNA was performed by the push method in 85 patients, the pull method in 101 patients and both the push and pull methods in 15 patients. After propensity score matching(age, sex, tumor diameter, and FNA needle), 85 patients each were stratified into the push and pull groups. Patient characteristics and EUSFNA-related factors were compared between the two groups.RESULTS Patient characteristics were not significantly different between the two groups. The distance to lesion was significantly longer in the push group than in the pull group(13.9 ± 4.9 mm vs 7.0 ± 4.9 mm, P < 0.01). The push method was a significant factor influencing the distance to lesion(≥ median 10 mm)(P < 0.01). Additionally, tumor diameter ≥ 25 mm(OR = 1.91, 95%CI: 1.02-3.58, P = 0.043) and the push method(OR = 1.91, 95%CI: 1.03-3.55, P = 0.04) were significant factors contributing to the histological diagnosis of malignancy.CONCLUSION The pull method shortened the distance between the endoscope and the lesion and facilitated EUS-FNA of pancreatic head cancer. The push method contributed to the histological diagnosis of pancreatic head cancer using EUS-FNA specimens.展开更多
OBJECTIVE: To compare the clinical effect of brachial plexus block with "One Injection Two Points" guided under ultrasound and the conventional method guiding by ultrasound. METHODS: 70 patients were randomi...OBJECTIVE: To compare the clinical effect of brachial plexus block with "One Injection Two Points" guided under ultrasound and the conventional method guiding by ultrasound. METHODS: 70 patients were randomized evenly into 2 groups, with 35 patients in each group, while the Experiment Group(Group B) received One Injection Two Points" method, the Control Group(Group A) received the conventional method.The nerve block every 5 s, the success rate of anesthesia, the dosage of local anesthetics, second remedial anesthesia, adverse reactions, etc.were recorded. RESULTS: Group B was superior to group A in the success rate of anesthesia; There were 6 patients in group A who required constant pump injection of Remifentanil to remedy, while no patients in Group B needed remedy treatment. There were no serious adverse reactions in both groups.CONCLUSIONS: The clinical effect of brachial plexus block with "One Injection Two Points" method guided under ultrasoundguiding by ultrasound was superior to that of the conventional method.展开更多
目的探讨以问题为导向的教学法(problerm-based learning,PBL)、情景教学法联合放射学信息系统(radiography information system,RIS)在超声医学本科实习教学中的应用价值。方法选取2020年6月—2022年6月在重庆医科大学附属大学城医院...目的探讨以问题为导向的教学法(problerm-based learning,PBL)、情景教学法联合放射学信息系统(radiography information system,RIS)在超声医学本科实习教学中的应用价值。方法选取2020年6月—2022年6月在重庆医科大学附属大学城医院超声科实习的医学影像专业本科实习生48名为研究对象,随机分为观察组24名学生,对照组24名学生,察组采用PBL、情景教学法联合RIS进行教学,对照组采用传统教学法进行教学,对2组出科考核成绩(理论、操作技能)、问卷调查进行比较。结果观察组的出科成绩理论为(88.24±2.18)分,操作为(84.47±3.49)分,均高于对照组的出科成绩理论(74.48±2.32)分,操作(71.33±3.24)分,差异有统计学意义(P<0.001);观察组满意度为95.83%,对照组满意度为79.17%,差异有统计学意义(P<0.05);观察组83.33%的学生认为PBL教学法+情景教学+RIS激发了学习兴趣,87.50%的学生认为训练了临床思维能力,91.67%的学生认为培养了团队协作能力,83.33%的学生认为提高了沟通能力,而对照组54.17%学生认为传统教学激发了学习兴趣,54.17%的学生认为训练了临床思维能力,45.83%的学生认为培养了团队协作能力,50.00%的学生认为提高了沟通能力,观察组的学习兴趣、学习主动性、团队协作意识、人文关怀意识、沟通能力、理论知识掌握、技能操作熟练程度、临床思维能力方面均优于对照组,差异有统计学意义(P<0.05)。结论PBL、情景学法联合RIS在超声实习教学中不仅有助于提高学生的专业素养,还有助于提高学生的综合素质,能提高教学效果,提升学生对教学的满意度。展开更多
基金Supported by the National Key Research and Development Program of China during the 13th Five-Year Plan Period(2018ZX09301060)Science and Technology Plan Project of Sichuan Province(2016NZYZF0007)the Fourth National Survey of Traditional Chinese Medicine Resources Program(2017)
文摘[Objectives] The research aimed to extract green pigment from leaves of Arctium lappa L. and inspect its stability. [Methods] Ultrasound assisted method was used. [Results] Water bath temperature had little impact on green pigment, and Al^(3+), Cu^(2+), Mg^(2+) and Zn^(2+) in metal ions greatly affected green pigment, while Fe^(3+) had very little impact on the stability of green pigment. pH did not basically affect green pigment of A. lappa L. [Conclusions] The extraction rate and stability of green pigment from leaves of A. lappa L. were higher, and it was one of materials suitable for extracting green pigment.
文摘AIM To evaluate the efficacy of endoscopic ultrasoundguided fine needle aspiration(EUS-FNA) of pancreatic head cancer when pushing(push method) or pulling the echoendoscope(pull method).METHODS Overall, 566 pancreatic cancer patients had their first EUS-FNA between February 2001 and December 2017. Among them, 201 who underwent EUS-FNA for pancreatic head lesions were included in this study. EUS-FNA was performed by the push method in 85 patients, the pull method in 101 patients and both the push and pull methods in 15 patients. After propensity score matching(age, sex, tumor diameter, and FNA needle), 85 patients each were stratified into the push and pull groups. Patient characteristics and EUSFNA-related factors were compared between the two groups.RESULTS Patient characteristics were not significantly different between the two groups. The distance to lesion was significantly longer in the push group than in the pull group(13.9 ± 4.9 mm vs 7.0 ± 4.9 mm, P < 0.01). The push method was a significant factor influencing the distance to lesion(≥ median 10 mm)(P < 0.01). Additionally, tumor diameter ≥ 25 mm(OR = 1.91, 95%CI: 1.02-3.58, P = 0.043) and the push method(OR = 1.91, 95%CI: 1.03-3.55, P = 0.04) were significant factors contributing to the histological diagnosis of malignancy.CONCLUSION The pull method shortened the distance between the endoscope and the lesion and facilitated EUS-FNA of pancreatic head cancer. The push method contributed to the histological diagnosis of pancreatic head cancer using EUS-FNA specimens.
文摘OBJECTIVE: To compare the clinical effect of brachial plexus block with "One Injection Two Points" guided under ultrasound and the conventional method guiding by ultrasound. METHODS: 70 patients were randomized evenly into 2 groups, with 35 patients in each group, while the Experiment Group(Group B) received One Injection Two Points" method, the Control Group(Group A) received the conventional method.The nerve block every 5 s, the success rate of anesthesia, the dosage of local anesthetics, second remedial anesthesia, adverse reactions, etc.were recorded. RESULTS: Group B was superior to group A in the success rate of anesthesia; There were 6 patients in group A who required constant pump injection of Remifentanil to remedy, while no patients in Group B needed remedy treatment. There were no serious adverse reactions in both groups.CONCLUSIONS: The clinical effect of brachial plexus block with "One Injection Two Points" method guided under ultrasoundguiding by ultrasound was superior to that of the conventional method.
文摘目的探讨以问题为导向的教学法(problerm-based learning,PBL)、情景教学法联合放射学信息系统(radiography information system,RIS)在超声医学本科实习教学中的应用价值。方法选取2020年6月—2022年6月在重庆医科大学附属大学城医院超声科实习的医学影像专业本科实习生48名为研究对象,随机分为观察组24名学生,对照组24名学生,察组采用PBL、情景教学法联合RIS进行教学,对照组采用传统教学法进行教学,对2组出科考核成绩(理论、操作技能)、问卷调查进行比较。结果观察组的出科成绩理论为(88.24±2.18)分,操作为(84.47±3.49)分,均高于对照组的出科成绩理论(74.48±2.32)分,操作(71.33±3.24)分,差异有统计学意义(P<0.001);观察组满意度为95.83%,对照组满意度为79.17%,差异有统计学意义(P<0.05);观察组83.33%的学生认为PBL教学法+情景教学+RIS激发了学习兴趣,87.50%的学生认为训练了临床思维能力,91.67%的学生认为培养了团队协作能力,83.33%的学生认为提高了沟通能力,而对照组54.17%学生认为传统教学激发了学习兴趣,54.17%的学生认为训练了临床思维能力,45.83%的学生认为培养了团队协作能力,50.00%的学生认为提高了沟通能力,观察组的学习兴趣、学习主动性、团队协作意识、人文关怀意识、沟通能力、理论知识掌握、技能操作熟练程度、临床思维能力方面均优于对照组,差异有统计学意义(P<0.05)。结论PBL、情景学法联合RIS在超声实习教学中不仅有助于提高学生的专业素养,还有助于提高学生的综合素质,能提高教学效果,提升学生对教学的满意度。
