1.Rejection status after kidney transplantation in 72 cases
Jingmin HU ; Yadi MAO ; Yanhu ZHANG
International Journal of Surgery 2008;35(12):805-808
Objective Comparing the rejection status between different sources of kidney and immunosuppressive therapy of renal transplantation,to find the effective monitoring of rejection.Methods Retrospective analysis of medical records.Results There was no statistical difference in the rejection rates of kidney transplantation after 1 year between different sources of kidney and immunosuppressive therapy(P>0.05).Blood pressure and body temperature can effectively monitor rejection.Conclusion To reduce the rejection rates of kidney transplantation,a good monitoring and nursing are necessary.
2.Research Progress in Mechanism of Acupuncture Intervention in Post-traumatic Stress Disorder
Yadi HAN ; Yanfeng ZHANG ; Xingke YAN
Chinese Journal of Information on Traditional Chinese Medicine 2016;(1):130-133,134
Post-traumatic stress disorder (PTSD) is a mental disorder appearing after the body suffers from life-threatening or strong mental trauma. Acupuncture and moxibustion has good efficacy to PTSD caused by recent disaster events. This article summarized domestic research on mechanism of acupuncture intervention in PTSD in recent years, in order to analyze and conclude the neurobiological mechanism of acupuncture intervention in PTSD, and offer some references for the research on efficacy and clinical application of acupuncture intervention in PTSD.
3.Delta three-dimensional semiconductor array verification for intensity modulated planning of helical tomotherapy
Fuli ZHANG ; Yadi WANG ; Qingzhi LIU ; Yongqian ZHANG
Chinese Journal of Radiation Oncology 2013;(4):309-311
Objective To investigate the feasibility of dose verification of intensity modulated planning of helical tomotherapy (HT) using three-dimensional semiconductor array (Delta4) and find a more time-consuming and accurate method to validate the delivery dose.Methods Delta4 detector array was used to verify the HT plan dose distribution of 10 patients.The precise setup of detector array was guided and registered by MVCT imaging.After the implementation of delivery,the measured dose distributions on the corresponding planes were compared with those calculated by the treatment planning system (TPS).According to the different acceptance criteria combination of dose difference or distance to agreement at different threshold level including 3%/2 mm,3%/3 mm,3%/4 mm,3%/5 mm at TH5,TH10,TH20,TH30,TH70,TH90,the γ analysis method was utilized to evaluate the dose verification.Results The dose distribution measured by the Delta4 was well consistent with that calculated by the TPS.The mean γpassing rates were all above 94.89%.Conclusions Delta4 detector array can get satisfying results when used in HT plan dose verification and is a viable tool to replace traditional film dosimetry system in clinical quality assurance work.
4.Evaluation of PTW Seven29 combining Octavius phantom for tomotherapy patient-specific quality assurance
Fuli ZHANG ; Yadi WANG ; Qingzhi LIU ; Weichao ZHANG ; Ping WANG
Chinese Journal of Radiation Oncology 2014;23(5):422-425
Objective To investigate the feasibility of dose verification of helical tomotherapy (HT) using the PTW Seven29 2D-ARRAY with Octavius phantom.Methods The 12 patients HT plan were verified with the PTW Seven29 2D-ARRAY combining Octavius phantom.The detector array was guided and registered by MVCT imaging,and measured dose distributions on the corresponding planes were compared with those calculated by the treatment planning system (TPS).Based on several different Gamma criteria,the Gamma analysis method was utilized to evaluate the dose verification.Results According to the different acceptance criteria combination of dose difference/distance to agreement at different threshold level including 3%/2 mm,3%/3 mm,3%/4 mm,3%/5 mm at TH5,TH10,TH20,TH30,the mean passing rates with γparameter ≤ 1 were all above 91.7% and 93.9% when PTW Seven29 2D-ARRAY was horizontal and vertical.The dose distribution measured by the 2D-ARRAY combining Octavius phantom was well consistent with that calculated by the TPS.Conclusions 2D-ARRAY with Octavius phantom can get satisfying results when used in HT plan dose verification and is a viable tool to replace traditional film dosimetry system in clinical quality assurance work.
5.A dosimetric study of helical tomotherapy for nasopharyngeal carcinoma
Xinge CAO ; Yadi WANG ; Yongqian ZHANG ; Fuli ZHANG ; Junmao GAO
Chinese Journal of Radiation Oncology 2016;25(8):802-806
Objective To use helical tomotherapy ( HT ) for determining the difference between actual doses and planning doses to the target volume and organs at risk ( OARs ) in patients with nasopharyngeal carcinoma receiving radiotherapy, and to provide guidance for the clinical treatment. Methods Localization and delineation of the target volume and OARs were performed by computed tomography ( CT) in 21 patients with nasopharyngeal carcinoma receiving radical radiotherapy using HT. All patients underwent megavoltage CT ( MVCT) scan prior to treatment. The obtained MVCT images were used for dose reconstruction in the adaptive module of HT, in which the actual dose was obtained and the non?image?guided dose was simulated. Each single dose distribution and the corresponding CT image were sent to software MIM6. 0 for superimposition, and the overall dose was obtained. The initial plan, image?guided plan, and non?image?guided plan were named Plan?1, 2, and 3, respectively. The dose distribution in the target volume and OARs was compared between the three plans with t ? test or wilcoxon test . Results Compared with those in Plan?1, the D98 values for the planning gross tumor volume ( PGTV) and planning target volume ( PTV) in Plan?2 were significantly reduced by 1. 16% and 2. 3%, respectively ( P=0. 025;P=0. 043);the volumes of the left and right parotids in Plan?2 were significantly reduced by 46. 0% and 46. 5% on average, respectively ( P=0. 000);the distances between the midline and the center?of?mass for left and right parotids were significantly reduced by 6. 9% and 6. 5%, respectively ( P=0. 000);the V26 and Dmean for both parotid glands were significantly elevated by 32. 8% and 25. 2%, respectively ( P=0. 000) . Compared with those in Plan?1, the D98 values for PGTV, PTV?1, and PTV?2 in Plan?3 were significantly reduced by 2. 0%, 1. 9%, and 2. 4%, respectively ( P=0. 001;P=0. 007;P=0. 036);the V26 and Dmean for both parotid glands in Plan?3 were significantly elevated by 33. 6% and 25. 3%, respectively ( P=0. 000);Dmax to the spinal cord was significantly increased by 6. 9%( P=0. 005) . There was no significant difference in D2 to the spinal cord between Plan?2 and Plan?1( P=0. 392) . Conclusions The doses to both parotid glands increase during HT for nasopharyngeal carcinoma, which is closely associated with the shift of the parotid glands toward the midline. Image?guided radiotherapy does not enhance the dose to the target volume, but reduces the dose to the spinal cord.
6.The investigation of risk factors of post-polypectomy emergency hemorrhage
Yadi ZHANG ; Wensheng PAN ; Hong SHEN ; Wanjun ZHANG ; Liangqin WU ; Wen HU ; Yimiao ZHU ; Xiang XU
Chinese Journal of Emergency Medicine 2012;21(1):74-78
Objective To explore the risk factors in post-polypectomy hemorrhage in rectum and to discuss the appropriate interventions.Methods A total of 313 patients with 373 polypi were included in this study. The clinical data were analyzed by SPSS 16 software. Results There were 313 patients with colorectal polypus curatively resected and 373 polypi in total.There were 11 (3.5%) patients subjected to post-polypectomy hemorrhage in rectum.Regression analysis showed that the independent risk factor of postpolypectomy hemorrhage in rectum was the hypertension of patients (P < 0.01 ) and this hemorrhage had no significant correlations with patientg'ender,age,size of polypus,pathological characteristics and the methods of polypectomy.Conclusions Hypertension of patients is an independent risk factor in post-polypectomy hemorrhage.
7.Clinical analysis of inherited metabolic diseases in the neonatal intensive care unit
Huiying SHI ; Changyi YANG ; Baoquan ZHANG ; Ying XU ; Yadi ZHANG ; Wenhong CAI
Chinese Journal of Applied Clinical Pediatrics 2016;31(20):1556-1558
Objective To study the clinical characteristics of inherited metabolic disease(IMD) in the neonatal intensive care unit and to improve the ability of early diagnosis of the disease.Methods A total of 5 590 newborns were hospitalized in the Neonatal Intensive Care Unit (NICU),Fujian Maternity and Children Hospital between January 2012 and April 2015,and 340 neonates who were suspected of IMD consecutively were recruited.Tandem mass spectrometry and gas chromatography-tandem mass spectrometry were used to diagnose IMD.A retrospective study of analyzing the clinical characteristics of the patients of IMD in the NICU was conducted.Results Fifteen neonates were diagnosed as IMD,among whom methylmalonic academia,maple syrup urine disease,hyperphenylalaninemia,citrin deficiency,propionic acidemia,glutaric academia,ornithine transcarbamylase deficiency and primary carnitine deficiency were 5,2,2,2,1,1,1 and 1,respectively.Sixty-six point seven percent (10/15 cases) of IMD onset in the first week after birth were severe.Clinical presentations include the nervous was severe,digestive system and respiratory system symptoms,such as poor response,coma,lethargy,dystonia,convulsion,shortness of breath,dyspnea,milk refusal,diarrhea,jaundice,and so on.The main early manifestations were anorexia,lethargy,seizures and shortness of breath,which were nonspecific.Conclusions Clinical manifestations of IMD are nonspecific.The earlier onset of the disease is more serious,and early tandem mass spectrometry and gas phase chromatography-mass spectrometry are useful for early diagnosis and may guide early clinical intervention.
8.Summary of the theoretical foundation and clinical application of Prof. Zheng Kui-shan’s ‘warming-dredging needling technique’
Xueyan SHENG ; Jiaming XING ; Yadi HAN ; Yanfeng ZHANG ; Xiaoli ZHANG ; Xingke YAN
Journal of Acupuncture and Tuina Science 2016;14(2):115-121
‘Warming-dredging needling technique’ is one of the specific needling techniques created by Prof. Zheng Kui-shan for treating intractable and difficult diseases. Developed from ‘Shao Shan Huo (Mountain-burning Fire)’ and ‘warming- reinforcing method’, this method displays the effects of ‘warming’, ‘dredging’ and ‘reinforcing’. The ‘scapula-penetrating heat’ and ‘eye-transmitting heat’ belong to the representative needling techniques of ‘warming-dredging needling technique’. In order to promote the clinical application of ‘warming-dredging needling technique’, its theoretical foundation and clinical experience are summarized.
9.Position modification and actual radiation dose in parotids for head and neck cancers treated with TomoTherapy
Huayong JIANG ; Yongqian ZHANG ; Yadi WANG ; Weidong XU ; Junmao GAO ; Fuli ZHANG ; Bo YAO
Chinese Journal of Radiological Medicine and Protection 2014;34(11):845-849
Objective To analyze the impact of parotid's position and volume changing on radiation dose for head and neck cancer treated with TomoTherapy.Methods Totally 12 patients with head and neck cancer were treated with TomoTherapy.Before the treatment,the dose distribution was recalculated with MVCT images,which would obtain the parameters of position,volume and actual radiation dose for parotids.Results The volume of parotids in Plan2 was significantly lower than in Plan1,and the percentage reduction was 29.06% and 31.78% for left and right parotid,respectively (Z =6.77,3.06,P < 0.05).Distance between the COM (center of mass) of parotids and the midline of body was significantly smaller in Plan2 than in Plan1,and the percentage reduction was 6.72% and 6.19% (t =5.14,5.80,P < 0.05) at left and right side,respectively.Average dose and V26 for both parotids were higher than those in Plan1,increasing by an average of 37.74%,25.08% (Z =-6.03,-5.31,P < 0.05) for left parotid and 30.45%,19.33% (Z =-5.43,-3.26,P <0.05) for right parotid,respectively.Conclusions The actual radiation dose to parotids was significantly increased during the radiation therapy for patients with head and neck cancer.There was a linear correlation between the decrease of distance between the COM of parotids and the midline of body and the percentage increase of parotids' radiation dose.No correlation between the reduction of parotids' volume and dose to parotids.In order to reduce the parotids' radiation dose,modification of treatment plan at the appropriate time is essential.
10.The impact of image-guided radiation therapy on treatment of cervical cancer
Na LU ; Zongkai ZHANG ; Yadi WANG ; Fuli ZHANG ; Huayong JIANG ; Diandian CHEN
Chinese Journal of Radiation Oncology 2021;30(1):81-85
Objective:To evaluate the effect of radical image-guided radiotherapy (IGRT) on the target dose in cervical cancer and investigate the appropriate application mode.Methods:Twenty patients with cervical cancer treated with helical tomotherapy (HT) in Seventh Medical Center of PLA General Hospital from 2012 to 2016 were selected. A megavoltage CT (MVCT) scan was performed before each treatment. The obtained MVCT images were used for dose parameter in the adaptive module of HT to obtain the actual dose (Plan 1) and the non-image-guided dose parameter was simulated (Plan 2). Each single dose distribution and the corresponding fused CT images were transferred to the software Mimvista 6.5 to obtain the total radiation dose parameter by dose superposition.Results:The motion of CTV, uterus and GTV in Plan 2 was significantly larger than that of Plan 1(all P<0.05), and the largest changes were seen in the ventrodorsal and uterine direction. The V 45Gy, V 50Gy, D 98% and D mean of CTV and uterus and V 50Gy of GTV in Plan 2 were significantly decreased compared with those in Plan 1(all P<0.05). The left-right motion of Plan 1 was negatively correlated with D 2% and D 98% of CTV and uterus (both P<0.05). The head-foot motion was negatively associated with V 45Gy and V 50Gy of GTV (both P<0.05). The ventrodorsal motion was negatively correlated with D 98% of uterus ( P<0.05). The left-right motion of Plan 2 was negatively correlated with D 2% of CTV and V 50Gy of uterus (both P<0.05). The head-foot motion was negatively associated with D 98% of CTV, and D 98%, D mean, V 45Gy and V 50Gy of uterus (all P<0.05). The ventrodorsal motion was negatively correlated with D 98% of CTV, D 98%, D mean, V 45Gy and V 50Gy of uterus, and D mean and V 45Gy of GTV (all P<0.05). Conclusions:In intensity-modulated radiotherapy for cervical cancer, the uterine body displacement is large and the low CTV area is mainly located in the uterine body. IGRT can significantly reduce the dosimetric deviation induced by organ movement.