1.The implementation of JPEG2000 compression algorithm in medical image in DICOM format
Chinese Medical Equipment Journal 1989;0(02):-
This paper specifies the programming thought and method for implementing JPEG2000 compression algorithm in medical image in DICOM format. Some VC++ codes and particular comments of key functions are also presented. This paper has reference to other researchers in this field.
2.Design of Control System of Charge Evasion in Medical Equipment Based on Embedded System
Zhen LIU ; Hong WANG ; Jinan LIN
Chinese Medical Equipment Journal 2009;30(7):54-56
Obiective To solve the problem of charge evasion in medical equipment and improve the management of medical equipment and increase income of the hospital.Methods The control system was designed and used based onembedded system as real-time monitor in the medical equipment. Results This system can realize the real-time monitor of the medical equipment and improve the management of hospital. Conclusion The system resolves the problem of charge evasion effectually and increases the income of the hospital.
3.Development of integration information inquiry and statistics system for Civil Patients with Medical Insurance
Jinan LIN ; Lixin CHEN ; Jiansong SHANG
Chinese Medical Equipment Journal 2003;0(12):-
This paper develops an integration information inquiry and statistics system for Civil Patients with Medical Insurance on the basis of PowerBuilder 9.0.It helps departments of medicare auditing and medicare settlement obtain integration information of patients.
5.Signal mining and analysis of adverse drug events of baloxavir marboxil based on American FAERS
Jing LIN ; Wenbao YANG ; Lingtong LYU
China Pharmacy 2023;34(7):868-871
OBJECTIVE To mine adverse drug event (ADE) signals related to baloxavir marboxil, and to provide reference for clinically safe drug use. METHODS The ADE signals related to baloxavir marboxil from January 1, 2018 to May 31, 2022 in the US FDA adverse event reporting system (FAERS) were mined using the proportional reporting odds ratio (PRR) method. ADE with report number≥3, PRR≥2 and χ2≥4 was defined as a positive signal, and PRR method was used to analyze the ADE signal. RESULTS A total of 1 424 ADE reports with baloxavir marboxil as the main suspected drug were collected, involving 460 ADE signals. The femininity and patient under 18 years old were reported more, the country with the highest number of reports was the United States, and the main indication of drug reported was influenza. A total of 37 ADE positive signals were obtained after PRR calculation and screening exclusion, the first three ADE signals in the list of the reported number were diarrhea, vomiting and immediate hypersensitivity, and the first three ADE signals in the list of PRR value were febrile delirium, ischaemic colitis and hemorrhagic cystitis. Compared with the instructions of baloxavir marboxil, 18 ADE signals had not yet been included, such as abnormal liver function, hematuria, hemorrhagic cystitis, etc. Five new SOCs were involved, such as kidney and urinary system diseases, hepatobiliary system diseases, investigations, nervous system disorders and musculoskeletal and connective tissue disorders. CONCLUSIONS When clinical application of baloxavir marboxil, in addition to the adverse drug reactions mentioned in the drug instructions, attention should be paid to abnormal liver function, hematuria, hemorrhagic cystitis, etc, so as to guarantee the safety of drug use.
6.Analysis of epidemiological characteristics of acute pesticide poisoning during 2007-2013 in Jinan, China.
Shouqin LIU ; Lin ZHOU ; Ling YAN ; Jun ZHANG ; Jing HAN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2014;32(6):425-428
OBJECTIVETo investigate the epidemiological characteristics of acute pesticide poisoning in Jinan, China and to provide effective proposals for the prevention and control of pesticide poisoning.
METHODSReported cases of acute pesticide poisoning from 2007 to 2013 in Jinan were collected and subjected to statistical analysis using SPSS 17.
RESULTSA total of 4852 cases of acute pesticide poisoning were reported from 2007 to 2013 in Jinan. The fatality rate was 14.10%. The incidence of non-occupational poisoning accounted for 94.23% (4 572/4 852). The incidence of occupational poisoning showed a decreasing trend from 2007 to 2013, with most cases poisoned by insecticides (236 cases, accounting for 82.86% of all cases of occupational poisoning). Among non-occupational poisoning cases, fatality rate was higher in cases aged 60 years or over than in those under 60 years; fatality rate was higher among male cases (16.11%) than among female cases (13.79%); herbicides had a significantly higher lethal rate (22.25%) than insecticides (14.02%) (P < 0.05).
CONCLUSIONMore attention should be paid to acute pesticide poisoning in Jinan, and effective management measures should be taken immediately.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Child, Preschool ; China ; epidemiology ; Female ; Humans ; Infant ; Infant, Newborn ; Male ; Middle Aged ; Occupational Exposure ; statistics & numerical data ; Pesticides ; poisoning ; Young Adult
7.Correlation analysis of vision and changes of macular structure and microcirculation in myopic maculopathy
Chun-Xia ZHANG ; Qing-Xu WANG ; Guang-Wei YU ; Na LI ; Dong-Lin WANG
International Eye Science 2023;23(12):2052-2058
AIM:To observe the changes of macular morphology and microcirculation in myopic maculopathy(MM), and investigate theirs correlation and effects on vision.METHODS: Case-control study. A total of 165 patients(189 eyes)with high myopia and 154 healthy volunteers(154 eyes)from October 2016 to December 2018 were selected. According to the classification of Meta-analysis for pathologic myopia(META-PM), participants were divided into M0 group(category 0, 41 eyes), M1 group(category 1, 53 eyes), M2 group(category 2 and 3, 52 eyes), and myopic choroidal neovascularization(mCNV)group(43 eyes). All participants underwent optical coherence tomography angiography(OCTA)examination. Morphological and microcirculation parameters of retina at different layers were compared between groups. Pearson correlation was used to assess the correlation between morphological and microcirculation parameters. Correlations between vision and other parameters were analyzed using multiple linear regression analysis.RESULTS:Foveal full retinal thickness(FRT)and outer retinal thickness(ORT)were all lower in M0, M1 and M2 groups than those of control group(all P<0.01). Foveal superficial capillary plexus vessel density(SVD)and deep capillary plexus vessel density(DVD)were all lower in M2 and mCNV groups than those of the control group(all P<0.01). Parafoveal FRT and ORT were all lower in M0, M1, M2 and mCNV groups than those of the control group(all P<0.01). Parafoveal inner retinal thickness(IRT), SVD and DVD were all lower in M2 and mCNV groups than those of the control group(all P<0.01). Subfoveal choroidal thickness(SFCT)and choroid capillaries vessel density(CVD)were all lower in M0, M1, M2 and mCNV groups than those of the control group(all P<0.01). Foveal vessel density of retina and choroid were positively correlated with its thickness in patients with MM without CNV(all P<0.05). Multivariate analysis showed that axial length(AL), diffuse or patchy chorioretinal atrophy were influencing foctors of best corrected visual acuity(BCVA; all P<0.01).CONCLUSION:Retinal morphological changes precede microcirculation changes in MM. Most of all, ORT changes precede IRT changes. Foveal vessel density of retina and choroid were positively correlated with its thickness. The main influencing factors of BCVA were AL and types of MM.
8. Mechanism for esophagus-jejunum stent bypass in the treatment of type 2 diabetes mellitus
Medical Journal of Chinese People's Liberation Army 2012;37(9):702-705
Objective To observe the effect of endoscopic esophagus-jejunum covered stent bypass on the treatment of type 2 diabetes mellitus (T2DM), and analyze the mechanism thereof. Methods Five obese Beagle dog models of T2DM underwent endoscopic esophagus-jejunum covered stent bypass to serve as operation group, and five normal Beagle dogs as control group receive endoscopy and exploratory laparotomy. The T2DM indices of both groups, including fast plasma glucose (FPG) level, fast insulin (FINS) level, intravenous glucose tolerance test-2h plasma glucose (IVGTT-2h PG) and IVGTT-2h FINS, were determined regularly before operation and 4, 8 and 12 weeks after operation. The insulin resistance index (HOMA-IR) and the function of islet β-cell (HOMA-β) were calculated with Homeostasis Model Assessment. The levels of gastric inhibitory polypeptide (GIP) and glucagon-like peptide-1(GLP-1) were also determined. Results Four weeks after operation, FPG, FINS, IVGTT-2h PG, and IVGTT-2h FINS all decreased significantly in operation group (P<0.01), and all these indices reached the levels of control group 12 weeks after operation (P>0.05). The HOMA-IR index declined distinctly and HOMA-β index ascended obviously in operation group 4 weeks after operation (P<0.01), and then recovered to the normal level 12 weeks after operation (P>0.05). The level of GIP lowered significantly (P<0.01), while of GLP-1 was elevated (P<0.05) 4 weeks after operation, and then returned to the normal levels 8 weeks after operation (P>0.05). Conclusion T2DM may be treated with esophagus-jejunum covered stent bypass effectively and safely, and the mechanism thereof might be related to the changes in gastrointestinal hormones.
9. Effect of acupuncture intervention on neurological function, cerebral microglia activation and secondary nerve damage in traumatic brain injury rats
Acupuncture Research 2019;44(1):19-24
OBJECTIVE: To observe the effect of acupuncture on activities of microglia in traumatic brain injury (TBI) rats. METHODS: Fifty-four male SD rats were randomly and equally divided into normal control, model and acupuncture groups according to the random number table (n=18 rats in each group). The TBI model was established by using a free fall brain injury striking device after exposing the local cranial bone (to induce the left parietal cerebral contusion). Acupoints "Baihui" (GV20), "Shuigou" (GV26), "Fengfu" (GV16), "Yamen" (GV15) and bilateral "Hegu" (LII4) were stimulated intensively by twirling the filiform needles with force at a range of >360° and a frequency of 160-180 cycles/min for 10 sec in every acupoint, once every 5 min during the 15 minutes' needle retaining. The treatment was given once every day for successive 14 days. The rats of the normal and model groups were grabbed and fixed with the same procedure. The behavioral changes were tested using modified neurological severity score (mNSS). The histopathological changes of the injured cerebral cortex tissues were observed by using hematoxylin-eosin (H.E.) staining, and the fluorescence intensity of Iba-1 (marker of microglia) positive products in the surrounding tissue of the cerebral focus was displayed by immunofluorescence staining, and the contents of neuron specific enolate (NSE) and neurite outgrowth inhibitor-A (Nogo-A) in serum (indicating a secondary nerve damage) were assayed by ELISA. RESULTS: The mNSS scores were significantly increased on day 1, 3, 7 and 14 in the model group in comparison with the normal group (P<0.01) and considerably decreased at the 4 time-points after acupuncture intervention relevant to the model group (P<0.05, P<0.01). H.E. staining showed that modeling induced pathological changes such as the excursion of cell nucleus, cellular swel-ling, vacuole-like change, neuron death, karyopyknosis dissolution, and proliferation of fibrous tissue were relatively milder in the acupuncture group. The average fluorescence intensity values of Iba-1-positive products, serum NSE and Nogo-A contents on day 3, 7 and 14 were significantly higher in the model group than in the normal group (P<0.05, P<0.01), and notably down-regulated in the acupuncture group than in the model group (P<0.05, P<0.01, except Nogo-A on day 3). CONCLUSION: Acupuncture intervention may accelerate neurological function recovery in TBI rats, which is closely related to its effects in inhibiting the activation of microglia and secondary nerve damage.
10.Pars plana vitrectomy combined with inverted internal limiting membrane flap technique for the treatment of macular hole retinal detachment in high myopia
Hua-Bin ZHENG ; Yan-Hui HAN ; Fan-Chao MENG ; Li LI ; Dong-Fang MENG ; Dong-Lin WANG
International Eye Science 2022;22(12):2087-2090
AIM: To compare the efficacy of pars plana vitrectomy(PPV)combined with internal limiting membrane(ILM)peeling or inverted ILM flap for the treatment of macular hole retinal detachment(MHRD)in high myopia.METHODS: A retrospective clinical study. A total of 38 cases(38 eyes)with MHRD in high myopia were treated with PPV combined with ILM peeling or PPV combined with inverted ILM flap in our hospital from January 2020 to June 2021. They were divided into control group(PPV combined with ILM peeling)and observation group(PPV combined with inverted ILM flap)according to the surgical method. Follow-up to 3mo after surgery, the surgery time, best corrected visual acuity(BCVA), the rate of macular hole closure and retinal reattachment were compared between two groups.RESULTS: The surgery time of two groups were compared and there were no statistically significant difference(30.71±4.55min vs. 35.20±5.44min, P=0.384). The BCVA in the two groups were significantly improved at the last follow-up(all P<0.01). But there was no difference in the postoperative BCVA(LogMAR)of the two groups(1.39±0.24 vs. 1.46±0.27, P=0.700). The rate of macular hole closure in the observation group was higher than that of control group(100% vs. 71%, P=0.024). There was no difference in the rate of recurrent retinal detachment of the patients in two groups(0 vs. 10%, P=0.492).CONCLUSION: Both surgeries can improve the BCVA, while PPV combined with inverted ILM flap has higher rate of macular hole closure.