2.MRI Workflow Optimized by Tim Technology
Haitao ZHAO ; Shun QI ; Jun LU ; Yali GE
Chinese Medical Equipment Journal 2003;0(10):-
The technology of Tim can support multiple seperated matrix coil units while the units can be freely assorted and seamlessly joined to form the a total imaging matrix possessing huge field of view.This paper analyzes the role of Tim which can help to improve extreme flexibility of examination,to possess more signal-to-noise(SNR),to achieve superior " local" resolution,and to possess faster scan time.It is concluded that Tim technology have the strong advantages at improving and optimizing MRI workflow.
3.Exploration of online learning mode for refresher doctors prehospital training and evaluation of learning effect in Peking Union Medical College Hospital
Linzhi LUO ; Qi LI ; Jing LUO ; Jun ZHAO ; Hui PAN
Basic & Clinical Medicine 2017;37(3):431-434
Objective Carry out the reform of the online learning mode of prehospital training for refresher doctors , and evaluate the effect of reform in Peking Union Medical College Hospital .Methods An exploration was carried out on the refresher doctors prehospital training mode from traditional classroom teaching to online learning , Estab-lished the online learning system .Evaluated the effect of online learning by the way of questionnaire investigation andreexaminationamong289refresherdoctors.Results 289refresherdoctorshavecompletedthestructuredon-line courses of prehospital training , and the average pass rate of the first test was 42.2%.The questionnaire and retest was conducted , A total of 262 doctors completed the work , The recovery rate was 90.7%, and the average pass rate of retest was 74.9%, showing improvement by 32.7%.Conclusions Online learning mode is an effec-tive tool for knowledge dissemination , and has a better learning effect .
4.Status que of acupuncture for strephenopodia after stroke.
Hui-Jun ZHU ; Gang-Qi FAN ; Yang ZHAO
Chinese Acupuncture & Moxibustion 2014;34(3):309-312
In order to optimize acupuncture protocol for stephenipodia after stroke, related papers of the recent 20 years are retrieved. Interrelated factors which may influence the therapeutic effect of acupuncture are analyzed through the aspects such as acupoints, needling methods and opportunities of acupuncture. It is held that importance should be attached on relation between acupoints and anatomy during acupoint selection. Different acupuncture protocol can be adopted in different phases of stephenipodia according to its time of occurrence. And it is found that the combination of acupuncture and rehabilitation can reinforce the therapeutic effect. Relationship between effect of acupuncture and patient's condition, acupoint selection and prescription, acupuncture manipulations (including directions, angles, reinforcing and reducing, quantity of stimulus) are worth to be further studied. On the base of the above all mentioned studies, optimization can be carried out on selection of acupoints and acupuncture manipulations. And therapeutic effect can be enhanced when the optimized acupuncture protocol is combined with rehabilitation therapies.
Acupuncture Points
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Acupuncture Therapy
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Foot Diseases
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etiology
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therapy
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Humans
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Stroke
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complications
5.Imaging features analysis of 26 patients of pleomorphic xanthoastrocytoma and summary of literature
Hongjun ZHAO ; Ruxin SUI ; Caoyuan QI ; Weibin GU ; Jun MA
Chinese Journal of Postgraduates of Medicine 2014;37(30):17-20
Objective To analyse the CT,MRI features of pleomorphic xanthoastrocytoma and improve the diagnosis.Methods Imaging feature of pleomorphic xanthoastrocytoma of 26 cases confirmed by surgery and pathology were analyzed retrospectively.Distribution,size,shape,signal,dense,peritumor edema and invasion of adjacent structures of lesion were summarized.Results The locations of lesions included:temporosphenoid lobe (19 cases),frontal lobe (2 cases),the lateral and three ventricles in 1 case,occipital lobe (1 case),medulla oblongata (1 case),and cervical cord (1 case).The tumor size:maximum:82 mm × 40 mm × 70 mm,minimum:16 mm × 13 mm × 14 mm.Solid lesions (3 cases),solid lesions with necrosis (7 cases),solid and cystic lesions (16 cases),lesion with calcification (4 cases).The solid lesions of the tumors showed equal signal intensity or slightly low signal intensity on T1WI,and equal signal intensity or slightly high signal intensity on T2WI.The equidensite and high density on CT,peritumor edema degree:mild (2 cases),moderate (5 cases),severe (1 case).Conclusion The characteristic imaging features can help in the understanding and diagnosis of pleomorphic xanthoastrocytoma.
6.Determination of Twelve Kinds of Volatile Disinfection Byproducts in Drinking Water by Gas Chromatography with Electron Capture Detector
Zhongxiang ZHANG ; Qi ZHAO ; Yulei LIU ; Jun MA ; Jingyao QI ; Zhijun REN
Chinese Journal of Analytical Chemistry 2017;45(8):1203-1208
A method for simultaneous determination of 12 kinds of chlorinated disinfection byproducts (DBPs) in drinking water was developed based on liquid-liquid extraction gas chromatography equipped with electron capture detector (GC/ECD).The procedural standard calibration was adopted to eliminate the interference of different matrix.The method detection limits for 12 DBPs were 0.08-0.21 μg/L and the entire analytical procedure was finished in 21.50 min.The recoveries were in the range of 80.9%-115.7% and the relative standard deviations (RSD) were between 0.9% and 9.9% at different concentration levels (5 and 50 μg/L) in tap water and surface water.The correlation coefficients for all 12 kinds of DBPs were greater than 0.99 in the linearity range of 0.5-200 μg/L.The method was applied to determine DBPs in drinking water and source water.This method was rapid and competent for detection of volatile DBPs in drinking water.
7.Impacts of electroacupuncture on constipation of intestine and lung syndromes and its correlative study.
Qi ZHAO ; Sheng CHEN ; Jun WANG ; Jia-jia ZHANG ; Ji-ping ZHAO
Chinese Acupuncture & Moxibustion 2014;34(10):941-945
OBJECTIVETo observe the improvements in constipation differentiated as intestine system syndrome and lung system syndrome treated with electroacupuncture (EA) and explore their correlation.
METHODSSeventy cases of severe functional constipation were randomized into an EA group and a pseudo-EA group, 35 cases in each one. In the EA group, the needles were inserted deeply at Tianshu (ST 25) and Fujie (SP 14) on bilateral sides, and directly went to parietal peritoneum. EA was attached to the needles, dense-disperse wave, 2 Hz/15 Hz, and 0.1 to 1.0 mA. The perpendicular insertion was done at Shangjuxu (ST 37), 25 mm in depth. After qi arrival, the needle was lifted, thrusted and rotated once every 10 min, for 3 times totally. The needles were retained for 30 min. In the pseudo-EA group, the pseudo-points lateral to Tianshu (ST 25), Fujie (SP 14) and Shangjuxu (ST 37) on bilateral sides were punctured shallowly. The electric stimulation was pretended to connect but with the electric wire cutting off. The needles were retained for 30 min. The treatment was given 5 times weekly in the first two weeks and 3 times weekly in the later 6 weeks. Totally, 28 treatments were required. TCM intestine and lung syndrome scale was used for evaluation. The changes in TCM syndromes were observed before and after treatment in the patients of the two groups.
RESULTSThe total score of intestine and lung syndrome and the score of individual syndrome were all reduced after treatment as compared with those before treatment in the two groups (both P<0.01). The improvements of the EA group in the total score of intestine system syndrome, the scores of large. intestine syndrome and stomach syndrome, the total score of lung system syndrome and the score of lung dysfunction in dispersing and descending syndrome were superior to those of the pseudo-EA group (P<0.01, P<0.05). The differences in the scores of lung qi deficiency syndrome and throat syndrome were not significant between the two groups (all P>0.05). Simultaneously, the very strong positive correlation (P<0.01) and positive linear correlation (P<0.01) were presented in the total score of intestine and lung syndrome of the two groups.
CONCLUSIONEA obviously improves in intestine system syndrome (including large intestine syndrome and stomach syndrome), as well as lung system syndrome (lung dysfunction in dispersing and descending) in the treatment of constipation. But the improvements are not apparent in the treatment of lung qi deficiency and throat disorder. Additionally, the obvious correlation is displayed in the improvements in intestine and lung syndrome.
Acupuncture Points ; Adult ; Aged ; Constipation ; physiopathology ; therapy ; Electroacupuncture ; Female ; Humans ; Intestines ; physiopathology ; Lung ; physiopathology ; Male ; Middle Aged ; Young Adult
8.Moderate and severe persistent allergic rhinitis treated with acupuncture: a randomized controlled trial.
Sheng CHEN ; Jun WANG ; Peng BAI ; Qi ZHAO ; Cheng TAN ; Baokai WANG ; Jiaji ZHANG ; Jiping ZHAO
Chinese Acupuncture & Moxibustion 2015;35(12):1209-1213
OBJECTIVETo observe the clinical efficacy and safety on moderate and severe persistent allergic rhinitis treated with acupuncture.
METHODSSixty-six patients of moderate and severe persistent allergic rhinitis were randomized into an acupuncture group (34 cases) and a western medication group (32 cases). In the acupuncture, group, acupuncture was applied to Dazhui (GV 14), Feishu (BL 13), Pishu (BL 20), Ganshu (BL 18) and Shenshu (BL 23) in the prone, retained for 20 min; then in the supine, at Baihui (GV 20), Yintang (GV 29), yingxiang (LI20) Taichong (LR 3) and Hegu (LI 4), retained for 20 min. Acupuncture was given once every two days, three times a week, continuously for 8 weeks. In the western medication group, cetirizine hydrochloride was taken orally, 10 mg each time, once every day, continuously for 8 weeks. Separately, before treatment, after the treatment of 1 and 2 months and in 1 month after treatment, the total nasal symptom score (TNSS), the scores in the emotion rating scale for Ganzangxiang of TCM (ERSG) and the rhinoconjunctivitis quality of life questionnaire (RQLQ) were observed in the patients of the two groups. The clinical efficacy was compared between the two groups.
RESULTS(1) For TNSS, the results after 1 and 2 months treatment and in 1 month after treatment were all, reduced as compare with that before treatment separately in the two groups (P < 0.05, P < 0.01) The result after 2 months treatment was lower than that after 1 month treatment in the acupuncture group (P < 0.05). In 1 month after treatment, the result in the acupuncture group was lower than that in the western medication group (P < 0.05). (2) For ERSG, the score after 2 months treatment was lower than that before treatment in the two groups (both P < 0.05). The score after 2 months treatment in the acupuncture group was lower than that in the western medication group (P < 0.05). (3) For RQLQ, the score after 1 month treatment was lower than that before treatment and the score after 2 months treatment was lower than that after 1 month treatment in the two groups (all P < 0.05). The score after 1 and 2 months treatment and in 1 month after treatment in the acupuncture group was lower than that in the western medication group separately (all P < 0.05). (4) The total effective rate was 91.2% (31/34) in the acupuncture group and was 90.6% (29/32) in the western medication group, without significant difference between the two groups (P > 0.05).
CONCLUSIONAcupuncture is the safe and effective intervention on moderate and severe persistent allergic rhinitis. Compared with the western medicine group, the efficacy in the acupuncture group presents much more advantageous at its durability.
Acupuncture Points ; Acupuncture Therapy ; Adult ; Female ; Humans ; Male ; Middle Aged ; Quality of Life ; Rhinitis, Allergic ; diagnosis ; therapy ; Young Adult
9.Study on fast screening antifungus activity of endophytes from Pseudolarix kaempferi.
Jia HE ; Jun CHEN ; Qi-Mei ZHAO ; Hong-Bing QI
China Journal of Chinese Materia Medica 2006;31(21):1759-1763
OBJECTIVETo screen antifungal activity of endophytes from Pseudolarix kaempferi.
METHODEndophytes from P. kaempferi were separated. By means of microdilution method, antifungal active endophytes were fast screened by Pyricularia oryzae P-2b model, and activity of endophytes against pathogenic fungus was studied.
RESULT44.8% of endophytes showed activity against P. oryzae P-2b in Pseudolarix kaempferi. Among them JJ314, JJ323 introduced formation of characteristic beads and swellings on the growing hyphae, JJ324 inhibited the conidia germination. They all showed activity against Trichophyton rubrum, Cryptococcus neoformans and Candida albicans.
CONCLUSIONEndophytes from P. kaempferi are a potential resource for the development of antifungal agent.
Antifungal Agents ; isolation & purification ; pharmacology ; Candida albicans ; drug effects ; Cryptococcus ; drug effects ; Fungi ; chemistry ; classification ; isolation & purification ; Mitosporic Fungi ; drug effects ; Pinaceae ; microbiology ; Plants, Medicinal ; microbiology ; Symbiosis ; Trichophyton ; drug effects