Objective The goal of this work is to evaluate the dosimetric characteristics of a new 2D diode array (Mapcheck from Sun Nuclear Corporation,Melbourne,Florida) and assess the role it can play in routine IMRT QA. Methods Fundamental properties of the Mapcheck such as reproducibility and linearity were studied for high-energy photon beams. Clinical performance of the MapCheck for relative and absolute dosimetry was demonstrated with head and neck IMRT plans,and compared with plan dose distribution. Absolute dose measured by Ion chamber and Mapcheck are compared with the one given in TPS. Results The Mapcheck offers the dosimetric characteristics required for performing both relative and absolute dose measurements. Conclusion Mapcheck can provide the verification of absolute dose and relative dose. Its use in the clinic can simplify and reduce the IMRT QA workload.

BACKGROUND: Many methods involved in measuring energy expenditure of physical action, however, study regarding measurements of upper limber movement energy expenditure are few.OBJECTIVIE: To measure the energy expenditure of limber movement using indirect calorimetry, and to analyze the characteristics of upper limber movement energy expenditure and influencing factors such as age and gender.DESIGN, TIME AND SETTING: The comparison observation was performed at the Jiangsu Institute of Sports Science from January to March 2009.PARTICIPANTS: Totally 108 health adults, including 47 males and 61 females, participated in the study, 65 of them aged 20-39 years, and the remained 43 aged 40-59 years.METHODS: Energy expenditure of 4 upper limb movements were performed, including sitting posture arm swing (60 times/min),elbow flexion (40 times/min), shoulder flexion-extension (60 times/min), and lateral arm raise (30 times/min). At each interval,have a 3-minute rest.MAIN OUTCOME MEASURES: Oxygen expenditure of 4 kinds upper limb movements were measured by MetaMax 3B tester. RESULTS: Rest oxygen expenditure of males were greater than that of females (P < 0.05), greater in 20-39 years old than 40-59 years old (P < 0.05). The greatest oxygen consumption occurred in males with arm swing [(550.9±90.6) mL/min], which was (425.8±75.7) mL/min in females. The lowest oxygen expenditure was elbow bend [male: (440.4±82.7) mL/min, female: (367.0±60.1) mL/min]. Net oxygen expenditure of all 4 kinds of upper limb movements was lower than 250mL/min (1 metabolic equivalent).CONCLUSION: ① The energy expenditure of usual upper limber movements below 1 metabolic equivalent. ② Age and body mass has more effect on resting energy expenditure than the gender. ③ The efficiency of young adults upper limb movements is higher than old adults.

Objective To investigate the effects of minimally invasive intracranial hematoma clearance on the perihematomal glutamate(Glu) level,permeability of blood-brain barrier(BBB) and brain edema.Methods Thirty rabbits with body weight of 2.80-3.40 kg were used to established the model of spontaneous intracerebral hemorrhage(ICH) and randomly divided into the minimally invasive group(MI) and control group(MC) after the model was prepared successfully.The MI group underwent minimally invasive procedures for removing intracranial hematoma by stereotactic instrument within 6 h after establishing the ICH model.The brain tissue was extracted on postoperative 1,3,7 d,and the perihematomal brain tissues were taken to detect the Glu level,BBB permeability and water content of brain tissue,which were compared with those in the control group.Results The Glu level,BBB permeability and brain water content on 1,3,7 d in the MI group were lower than those in the MC group,and the differences were statistically significant(P＜0.05).Conclusion The minimally invasive surgery for removing intracranial hematoma is helpful to reduce perihematoma Glu level,BBB permeability and brain water content.

Objective To understand the correlation between TCM service utilization and health behavior of community residents.MethodsAself-designed questionnaire about TCM service utilization and health behavior status was used to investigate 200 people from 4 communities on random sampling. The items in the questionnaire were evaluated and analyzed to test the correlation of TCM service utilization and health behavior of community residents.Results The two indexes significantly correlated in 0.01 level (bilateral),r=0.674, bilateralP=0.000.Conclusion The correlation between TCM community service utilization and health behavior status is positive. The higher the level of TCM community services utilization is, the higher the index value of health behavior status will be.

Objective:To investigate the effect of peer support education on family function of breast cancer patients with breast reconstruction.Methods:Totally 146 patients who received surgical treatment in the department of plastic surgery for breast cancer from June 2017 to June 2019 were randomly divided into the experimental group and the control group by the method of random number table, 73 cases each. The control group received routine education. Patients in the observation group received regular education and peer support education. The intervention time was from admission to 6 months after discharge, and the control group received routine nursing care. Quality of life questionnaire was used to evaluate the quality of life of the patients at six months after operation, family care index questionnaire was used to evaluate the family function of the patients, and comprehend social support scale was used to evaluate the level of social support, then various indicators of the two groups of patients were compared.Results:6 months after operation, the scores of quality of life function and symptom dimension of the intervention group were 6.43±1.54. 5.83±1.47, while control group were 6.02±1.59; 6.39±1.63. There were statistically significant differences between the two groups ( t values were 4.30, 5.01, P < 0.05); family care scores of the two groups were compared, the intervention group was 8.78±2.04. The control group was 8.43±2.05. There were statistically significant differences between the two groups ( t value was 2.02, P < 0.05); the comprehension support score of the two groups was compared, and that of the intervention group was 62.24±14.81. The control group was 55.74±13.58. There were statistically significant differences between the two groups ( t value was 4.26, P < 0.05). Conclusion:Peer support education can improve the quality of life and family care of breast cancer patients with breast reconstruction.

Objective To evaluate the clinical value of endoscopic submucosal tunnel dissection ( ESTD) for treatment of large gastric angle superficial neoplasms. Methods A retrospective analysis was performed on data of 87 patients with superfical neoplasms in gastric angle, including 32 cases undergoing ESTD and 55 cases undergoing endoscopic submucosal dissection ( ESD) in 6 institutions between July 2014 and July 2016. The dissection time, dissection speed, en bloc resection rate, curative resection rate, adverse events, and prognosis were compared between the two groups. Results The ESTD group showed a shorter dissection time ( 87. 3 ± 32. 6 min VS 136. 7 ± 64. 5 min, P<0. 01 ) , a higher dissection speed ( 0. 18 ± 0. 07 cm2/min VS 0. 08±0. 05 cm2/min, P<0. 01), a higher en bloc resection rate[100％ (32/32) VS 87. 3％ (48/55), P=0. 035], and a higher curative resection rate[100％ (32/32) VS 85. 5％ (47/55), P=0. 024] compared with the ESD group. The intraoperative bleeding rate[59. 4％ (19/32) VS 100. 0％( 55/55) , P<0. 01] and muscular injury rate[ 0 ( 0/32) VS 14. 5％ ( 8/55) , P=0. 024] were lower in the ESTD group than those of the ESD group. There was no statistical difference on recurrence rate between the two groups[0 (0/32) VS 1. 9％ (1/54), P=0. 443]. Conclusion ESTD has a higher dissection speed and greater security on treatment of large gastric angle superficial neoplasms, and is worthy to be generalized.