2.Application of 3.0T MRI in the preoperative assessment of rectal carcinoma
Duoduo LIU ; Weihuan HOU ; Shun QI ; Hong YIN ; Jing REN ; Yi HUAN
Journal of Practical Radiology 2017;33(4):537-541
Objective To probe the value of 3.0T MRI in the preoperative assessment of rectal carcinoma.Methods The study recruited 41 patients who were confirmed by biopsy of rectal carcinoma and underwent conventional MRI, high-resolution MRI and diffusion weighted imaging(DWI), the distance from the inferior part of tumor to transitional skin and the percentage of circumferential invasion were measured, the tumor's T staging, N staging,and the status of circumferential resection margin(CRM) and extramural vascular invasion(EMVI) were assessed.MRI findings were compared with endoscope and postoperative pathological results.Results MRI could accurately show the distance from the inferior part of tumor to transitional skin(P>0.05);The mean percentage of circumferential invasion for the tumor with T1-T2 and T3 were 61%,83% respectively (P>0.05);The total accuracy of T,N staging diagnose were 80.5%,75.6% respectively, which had a better consistent with pathological T,N staging(Kappa=0.564,0.634);The total accuracy of CRM and EMVI diagnose were 90.2%,73.2% respectively,which had a better or moderate consistent with pathological diagnose(Kappa=0.765,0.461).Conclusion 3.0T MRI has the unique application in the preoperative assessment of rectal carcinoma, which can provide more comprehensive information for clinic.
3.Virtual reality simulator for training urologists on transurethral prostatectomy
He ZHU ; Yi ZHANG ; Jin-Shun LIU ; Gang WANG ; Cheng-Fan YU ; Yan-Qun NA
Chinese Medical Journal 2013;(7):1220-1223
Background A virtual reality simulator provides a novel training model for improving surgical skills in a variety of fields.They can simulate a variety of surgical scenarios to improve the overall skills required for endoscopic operations,and also record the operative process of trainees in real-time and allow for objective evaluation.At present,some simulators for transurethral resection of the prostate (TURP) are available.The utility of virtual reality simulators in training of transurethral prostatectomy was investigated.Methods Thirty-eight urologists were randomly selected to take part in a simulation based training of TURP using the TURPSimTM system.Pre and post-training global rate scale (GRS) scores and objective parameters recorded by the simulator were assessed.Then,questionnaires were filled out.Results Compared with baseline levels,the GRS scores of trainees increased (18.0±4.0 vs.12.4±4.2,P<0.001),while the rate of capsule resection (26.3%±0.6% vs.21.2%±0.4%,P <0.001),amount of blood loss ((125.8±86.3) ml vs.(83.7±41.6) ml,P <0.001),external sphincter injury (3.6±2.9 vs.2.0±2.0,P <0.001)decreased significantly after training.Most trainees were satisfied with the simulator based training and believed that the simulator accurately mimicked actual surgical procedures and could help improve their surgical skills.Conclusions As a new method of training on transurethral prostatectomy skills,training of TURP using a virtual simulator can help urologists improve their surgical skills and safety.Therefore,the application of the TURPSimTM system in education and training of urologic surgery is warranted.
4.Analysis on the current situation of establishing control group in clinical studies of acupuncture and moxibustion for treatment of periarthritis of shoulder.
Wei-ma PENG ; Mei MAO ; Bao-yan LIU ; Zhi-shun LIU ; Yi WANG
Chinese Acupuncture & Moxibustion 2007;27(6):453-457
OBJECTIVETo probe into the current situation and problems of establishing control group in clinical studies of acupuncture and moxibustion for treatment of periarthritis of shoulder at home.
METHODSTo retrieve the literatures of establishing control groups in clinical studies of acupuncture and moxibustion for treatment of periarthritis of shoulder in magazines at home, and based on key problems in establishment of control group, make a Excel form to take out relative contents in the literatures and classify, summarize and statistically analyze.
RESULTSIn establishing control group in clinical studies of acupuncture and moxibustion for treatment of periarthritis of shoulder, a lot of problems exist, most studies do not have the basis of establishing control group, and also do not establish control group for the purpose of the study, making the whole test have error in the stage of program design, and leading to unreliable for the results of clinical control studies.
CONCLUSIONIn clinical researches of acupuncture and moxibustion, a standard for guiding establishment of control group is eagerly needed.
Acupuncture Therapy ; Control Groups ; Humans ; Moxibustion ; Periarthritis ; therapy ; Research Design ; Shoulder Joint ; Shoulder Pain ; therapy
5.Correction of shortened and broaden prolabium deformity with double flag-shaped flaps following bilateral cleft lip repair.
Ren-Yi YU ; Shun-Li LIU ; Ming-Rui CHEN ; Ben-Li LIU ; Doug-Hui BIAN ; Kai WU
Chinese Journal of Plastic Surgery 2013;29(4):244-247
OBJECTIVETo explore the correction for shortened and broaden prolabium deformity following bilateral cleft lip repair.
METHODSWe designed the upper lip double flag-shaped flaps. The quadrilateral original surgical scar (flap flag pole part) was resected and the incision was made along the direction of nasolabial groove at the nostrils bottom to form two flag-shaped flaps (the section of the flag face). Lip tubercle were tracted and blunt dissection of upper philtrum were performed to form a wound, 4-6 mm in width. The flag-shaped flaps on both sides were rotated to the central, in order to form a new nasal base and new prolabium, followed by V-Y or Z plasty procedure to correct the defect of tubercle and vermilion.
RESULTS10 cases were enrolled for the clinical application from January 2008 to December 2012. The height of the prolabium was lengthened by 4-6 mm after operation, which fundamentally corrected shortened and broaden prolabium deformity after bilateral cleft lip operation. The procedure can also correct the depression or defect of tubercle, too wide philtrum, philtrum column scar and the deformity of vermilion border continuity. The patients were followed up for a period of 3 months to 3 years with satisfactory results.
CONCLUSIONDouble flag-shaped flaps of the upper lip at the nostrils bottom is a simple and good surgery method to correct the shortened and broaden prolabium deformity following bilateral cleft lip repair.
Adolescent ; Adult ; Cleft Lip ; surgery ; Female ; Humans ; Lip ; abnormalities ; surgery ; Male ; Reconstructive Surgical Procedures ; methods ; Skin Transplantation ; Surgical Flaps ; Treatment Outcome ; Young Adult
6.Effect of Angelica sinensis polysaccharides on lymphocyte proliferation and induction of IFN-gamma.
Jun-jie SHAN ; Yi WANG ; Shun-chun WANG ; Di LIU ; Zhi-bi HU
Acta Pharmaceutica Sinica 2002;37(7):497-500
AIMTo study the effect of Angelica sinsensis polysaccharides on lymphocyte proliferation and induction of IFN-gamma.
METHODSAngelica sinensis polysaccharides(AP) were separated into AP-I, AP-II, AP-III and AP-IV by alcohol deposition with different concentration. The radioactivities of [3H]-TdR uptake by lymphocyte were used to determine the ability of lymphocyte. The bioactivity of IFN-gamma was measured by violet crystalline dying.
RESULTSAP-IV was found to be composed of Ara and Glu in the ratio of 0.99:6.47, the molecular weight was estimated to be 5,600. AP-I and AP-II 100 mg.kg-1 i.p. were found to significantly augment mice splenocyte proliferation, release IFN-gamma and increase IFN-gamma bioactivity. 50 micrograms.mL-1 AP-I, AP-II and AP-III were shown to enhance the proliferative response of the mouse spleen lymphocytes in vitro.
CONCLUSIONAP-I and AP-II showed higher immunoactivity than AP-III, AP-IV had no effect.
Angelica sinensis ; chemistry ; Animals ; Cell Division ; drug effects ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Immunity ; drug effects ; Interferon-gamma ; biosynthesis ; Lymphocytes ; cytology ; drug effects ; immunology ; Male ; Mice ; Mice, Inbred BALB C ; Plants, Medicinal ; chemistry ; Polysaccharides ; isolation & purification ; pharmacology ; Random Allocation ; Spleen ; cytology ; Tumor Cells, Cultured
7.A new triterpenoid tetrasaccharide from the root of Scrophularia ningpoensis.
Liu-qiang ZHANG ; Fu-jiang GUO ; Shun-chun WANG ; Yi-ming LI
Acta Pharmaceutica Sinica 2012;47(10):1358-1362
A new oleanane-type triterpenoid glycoside, 3beta-O-(f-D-xylopyranosyl-(1-->2)-[beta-D-glucopyranosyl (1-->4)-beta-D-glucopyranosyl-(1 -->3)]-beta-D-fucopyranosyl-11, 13(18) diene-olean-23alpha, 28 diol (1), along with three known phenylethyl glycosides (2-4), was isolated from the root of traditional Chinese medicine Scrophularia ningpoensis. Among them, compounds 2 and 3 were obtained from Scrophularia genus for the first time. The structure of compound 1 was elucidated on the basis of spectroscopic method including 1D, 2D NMR and HR-ESI-MS.
Drugs, Chinese Herbal
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chemistry
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isolation & purification
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Glycosides
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chemistry
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isolation & purification
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Molecular Structure
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Plant Roots
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chemistry
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Plants, Medicinal
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chemistry
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Scrophularia
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chemistry
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Triterpenes
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chemistry
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isolation & purification
8.Effectiveness of the UroMentor virtual reality simulator in the skill acquisition of flexible cystoscopy.
Yi ZHANG ; Jin-shun LIU ; Gang WANG ; Cheng-fan YU ; He ZHU ; Yan-qun NA
Chinese Medical Journal 2013;126(11):2079-2082
BACKGROUNDVirtual reality (VR) has been recognized as a useful modality in the training of surgical skills. With respect to basic endoscopic skill training of urology, we sought to investigate the effectiveness of the UroMentor(TM) virtual reality simulator (VRS) in the skill acquisition of flexible cystoscopy.
METHODSUrologists familiar with rigid cystoscopy procedures were selected to take part in a virtual training course of flexible cystoscopy. Changes in total operating time, frequency of injury, number of digital markers inside the bladder, and the global rating scale (GRS) scores were assessed following eight repeated training sessions on the UroMentor(TM).
RESULTSEighteen urologists voluntarily took part in the study. Total operating time was significantly lower after eight sessions of training by comparison ((111 ± 10) seconds and (511 ± 67) seconds, respectively; P < 0.001). Additionally, the frequency of injury decreased with training from (12 ± 2) times to (5 ± 1) times (P < 0.001), while the number of digital markers observed increased from 9 ± 0 to 10 ± 1 (P = 0.005). Finally, training with the UroMentor(TM) resulted in a GRS increase from (1.3 ± 0.2) points to (3.9 ± 0.2) points (P < 0.001).
CONCLUSIONthe VRS UroMentor(TM) can improve urologists' ability to perform flexible cystoscopy and could be used as an effective training tool for trainees.
Clinical Competence ; Computer Simulation ; Cystoscopy ; education ; Humans ; Urology ; education
9.Clinical characteristics and prognostic factors of malignancy-associated hypercalcemia in squamous cell carcinoma.
Su-jie ZHANG ; Yi HU ; Shun-chang JIAO ; Zhe-feng LIU ; Hai-tao TAO
Acta Academiae Medicinae Sinicae 2012;34(6):585-589
OBJECTIVETo explore the clinical characteristics and prognostic factors of patients diagnosed with squamous cell carcinoma (SCC) and presented malignancy-associated hypercalcemia (MAH).
METHODSWe retrospectively analyzed the clinical data of 36 patients with biopsy-proven SCC and presented MAH who were treated at the our department from January 2001 to December 2010. The survival were analyzed using the Kaplan-Meier method and Cox analysis.
RESULTSAmong these 36 patients, the median blood calcium level was 2.94 mmol/L (2.77-4.87 mmol/L), and the median survival time was only 45 days (1-839 d). Log-rank test showed that central nervous system symptoms, bone metastasis, and hypercalcemia occurring over 160 days after cancer diagnosis were predictors for poor survival(p=0.003, P=0.049, P=0.005). In the COX proportional hazard model analysis, central nervous system symptoms and hypercalcemia occurring over 160 days after cancer diagnosis were independent prognostic factors for survival time (RR=5.721, P=0.000; RR=4.624, P=0.001).
CONCLUSIONSPatients with squamous cell carcinoma (SCC) and presented MAH have poor prognosis. Central nervous system symptoms and hypercalcemia occurring over 160 days after cancer diagnosis are independent predictors of the prognosis.
Adult ; Aged ; Carcinoma, Squamous Cell ; complications ; Female ; Humans ; Hypercalcemia ; etiology ; Male ; Middle Aged ; Prognosis ; Retrospective Studies
10.Virtual reality simulator for training urologists on transurethral prostatectomy.
He ZHU ; Yi ZHANG ; Jin-Shun LIU ; Gang WANG ; Cheng-Fan YU ; Yan-Qun NA
Chinese Medical Journal 2013;126(7):1220-1223
BACKGROUNDA virtual reality simulator provides a novel training model for improving surgical skills in a variety of fields. They can simulate a variety of surgical scenarios to improve the overall skills required for endoscopic operations, and also record the operative process of trainees in real-time and allow for objective evaluation. At present, some simulators for transurethral resection of the prostate (TURP) are available. The utility of virtual reality simulators in training of transurethral prostatectomy was investigated.
METHODSThirty-eight urologists were randomly selected to take part in a simulation based training of TURP using the TURPSim(TM) system. Pre and post-training global rate scale (GRS) scores and objective parameters recorded by the simulator were assessed. Then, questionnaires were filled out.
RESULTSCompared with baseline levels, the GRS scores of trainees increased (18.0 ± 4.0 vs. 12.4 ± 4.2, P < 0.001), while the rate of capsule resection (26.3% ± 0.6% vs. 21.2% ± 0.4%, P < 0.001), amount of blood loss ((125.8 ± 86.3) ml vs. (83.7 ± 41.6) ml, P < 0.001), external sphincter injury (3.6 ± 2.9 vs. 2.0 ± 2.0, P < 0.001) decreased significantly after training. Most trainees were satisfied with the simulator based training and believed that the simulator accurately mimicked actual surgical procedures and could help improve their surgical skills.
CONCLUSIONSAs a new method of training on transurethral prostatectomy skills, training of TURP using a virtual simulator can help urologists improve their surgical skills and safety. Therefore, the application of the TURPSim(TM) system in education and training of urologic surgery is warranted.
Adult ; Computer Simulation ; Humans ; Male ; Transurethral Resection of Prostate ; education ; Urologic Surgical Procedures ; education ; Urology ; education