1.The clinical application of pressure-time curve in the mechanical ventilation
International Journal of Pediatrics 2013;40(6):617-620,638
Respiratory waveforms are helpful for respiratory therapist in getting the real-time changes of respiratory mechanics and dynamically adjusting ventilator parameters.Pressure-time curve is the most common waveform of ventilator.Correctly grasp the pressure-time curve is important for clinicians.The clinical appfication of pressure-time curve in the different conditions of mechanical ventilation were reviewed.
2.Extraction of Texture Feature Parameter of Transverse Section in Chinese Herbal Medicine by Gray-Level Co-occurrence Matrix
Ou TAO ; Yanling ZHANG ; Qian CHEN ; Yun WANG ; Yanjiang QIAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(12):2531-2537
Digitalization is an important method for the objectification and quantification of quality control on Chi-nese herbal medicine. To solve the problem of texture online visualization of Chinese herbal medicine and the estab-lishment of automatic identification method based on the texture, 12 Chinese herbal medicines were selected to cap-ture the images of their transverse sections. A total of 11 features were extracted from images using Gray-level Co-occurrence Matrix (GLCM) method. Through analyzing the influence of distances and angles between pixels on identi-fication results, it was concluded that when the distance was d = 3 and the angle was ? = 0o, the features extracted were suitable for expressing the texture of the transverse sections. The results indicated the feasibility of establishing the automatic identification method on Chinese herbal medicine based on image of transverse section. It will provide new technologies for the objectification and quantification of identification on Chinese herbal medicine.
3.Value of 18F-FDG PET/CT in the evaluation of treatment response and prognosis for patients with recurrent uterine cervical cancer
Dandan CHEN ; Hubing WU ; Quanshi WANG ; Yanjiang HAN ; Wenlan ZHOU ; Hongsheng LI ; Ying TIAN
Chinese Journal of Nuclear Medicine and Molecular Imaging 2015;35(3):168-172
Objective To investigate the value of 18F-FDG PET/CT in the evaluation of treatment response and prognosis for patients.with recurrent uterine cervical cancer.Methods Forty-five patients with recurrent uterine cervical cancer underwent 18F-FDG PET/CT before and after treatment from October 2004 to December 2014,and their PET/CT results were retrospectively analyzed.Treatment response was categorized as complete metabolic response (CMR),partial metabolic response (PMR),stable metabolic disease (SMD) and progressive metabolic disease (PMD) according to PET response criteria in solid tumors (PERCIST).Kaplan-Meier survival analysis was used.The difference of progression-free survival (PFS) between patients with and without PMD was compared by x2 test.The PFS difference among patients with different SUVmax on pretreatment PET/CT was also compared byx2 test.Results After treatment,22.2% (10/45) of patients were categorized as CMR,22.2%(10/45) as PMR,4.4%(2/45) as SMD and 51.1% (23/45) as PMD by post-treatment 18F-FDG PET/CT.Thirty-two patients had long-term (6-64 months) clinical follow-up.The PFS was 1-64 months and the median PFS was 5 months.The patients without PMD had a significantly better PFS than those with PMD(12.2 vs 4.2 months,x2 =7.223,P<0.01).Patients with lesion SUVmax<7.5 on pretreatment PET/CT had a better PFS than those with SUVmax ≥7.5 (16.3 vs 5.9 months,x2 =5.415,P<0.05).Conclusion 18F-FDG PET/CT is useful forthe evaluation of treatment response and prognosis in patients with recurrent cancer of the uterine cervix.
4.Application of Drupal in Chinese Medicine Information Fusion
Zhao CHEN ; Li MA ; Baixia ZHANG ; Bin YUAN ; Shuaibing HE ; Yun WANG ; Yanjiang QIAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(12):2563-2567
This paper was aimed to discuss the application of content management system (CMS) Drupal in Chinese medicine information fusion. The modular functionality, scalability and strong management capabilities of Drupal can effectively manage and reasonably present information resources of Chinese medicine, which extended the application of Chinese medicine information fusion. Regarding CMS Drupal as the carrier of Chinese medicine information fusion, the Chinese medicine information fusion method can be used in the collection, organization and demonstration of Chinese medicine information in the platform. As one of network tools for Chinese medicine information fusion, Dru-pal will play its powerful function in content management and information publishing with the virtual technology. It will also enrich Chinese medicine information fusion, and promote the spread of Chinese medicine knowledge.
5.A Study on Model Performance for Ethanol Precipitation Process of Lonicera japonica by NIR Based on Bagging-PLS and Boosting-PLS algorithm
Zhao CHEN ; Zhisheng WU ; Xinyuan SHI ; Bing XU ; Na ZHAO ; Yanjiang QIAO
Chinese Journal of Analytical Chemistry 2014;(11):1679-1686
ToprovidethemethodologyforrapidqualityevaluationofLonicerajaponica,wehaveestablished the stable quantitative model of near infrared spectroscopy ( NIR) . The performance of Bagging partial least squares (Bagging-PLS) model and Boosting partial least squares (Boosting-PLS) model was compared with that partial least squares ( PLS ) model based on the NIR data of ethanol precipitation process of Lonicera japonica. On this basis, the performance of these two models after variables selection was also studied by the methods of siPLS ( synergy interval partial least squares ) and CARS ( competitive adaptive reweighted sampling) . The experimental results showed that the prediction performance of Bagging-PLS and Boosting-PLS models was superior to PLS model with the latent factor of 10 . The band of 820-1029 . 5 nm and 1030-1239. 5 nm for the first batch was selected by the method of siPLS. In addition, the band of 820-1029. 5 nm and 1030-1239. 5 nm was selected for the second batch sample in the same method. Furthermore, the method of CARS was taken to select variables for the two batches samples with 5-fold cross-validation and 10-fold cross-validation. And the lowest RMSECV( root mean square error of cross-validation) values were used to take subset. Compared to the model performance without the method of CARS, the RMSEP value of the Bagging-PLS model and Boosting-PLS model for the concentration of chlorogenic acid reduced by 0 . 02-0 . 04 g/L and rp(correlation coefficient of prediction)value increased by 4%-5%. Generally, Bagging-PLS and Boosting-PLS could be regarded as rapid prediction methodsfor NIR quantitative models of ethanol precipitation process of Lonicera japonica.
6.Correlation study of brain β-amyloid deposition and blood β-amyloid level in Alzheimer′s disease
Fangyang JIAO ; Weiwei LI ; Yanjiang WANG ; Jinju SUN ; Xiao CHEN ; Jianliang WEN ; Rongbing JIN
Chinese Journal of Nuclear Medicine and Molecular Imaging 2021;41(1):6-11
Objective:To assess the β-amyloid (Aβ) deposition of voxel-based PET imaging in Alzheimer′s disease (AD) and its relationships with blood biomarkers (Aβ).Methods:From January 2015 to December 2018, a total of 23 AD patients (9 males, 14 females, age (68.5±9.0) years; duration: (40.9±23.3) months; 8 mild patients, 15 moderate or severe patients) who underwent Aβ PET and with positive imaging results in Daping Hospital, Army Medical University were retrospectively enrolled. The information of Mini-Mental State Examination (MMSE) and Clinical Dementia Rating (CDR) were collected. Blood level of Aβ42, Aβ40 were measured. Differences of those metrics including Aβ42/Aβ40 between mild and moderate or severe patients were compared. For all 11C-Pittsburgh compound B (PIB) PET images, voxel-based one-sample independent t test analyses were performed. Voxel-based two-sample independent t test analyses were also performed between mild and moderate or severe patients. The voxel-based Pearson correlation analyses were run to assess the associations between blood metrics and Aβ deposition of 11C-PIB PET. Results:Comparing with mild patients, moderate or severe patients had lower MMSE (9.67±4.37 vs 17.13±2.80; t=4.349, P<0.001) and longer duration ((48.8±23.8) vs (26.0±13.5) months; t=-2.489, P<0.05). On voxel-wise analysis, amyloid PET illustrated brain Aβ deposition in bilateral frontal, right temporal, right occipital and posterior cingulate regions ( t values: 0.44-0.67, all P<0.001). Within AD, Aβ42/Aβ40 ( r values: from -0.62 to -0.41, 0.41-0.66, all P<0.05) were associated with amyloid PET, but not associated with Aβ42 ( r values: from -0.33 to 0, all P>0.05) or Aβ40 ( r values: from -0.41 to 0, all P>0.05). Conclusions:Based on voxel-wise analysis, 11C-PIB PET has comparable value for brain Aβ deposition. Aβ42/Aβ40 has the potential to predict brain Aβ deposition.
7.Epidemiological survey of glenoid fractures in the Third Affiliated Hospital to Hebei Medical University from 2003 through 2012
Lei LIU ; Zongyou YANG ; Jiayuan SUN ; Yunwei CUI ; Xiaodong CHENG ; Yanjiang YANG ; Pan HU ; Wei CHEN ; Bing YIN ; Song LIU ; Yingze ZHANG
Chinese Journal of Orthopaedic Trauma 2017;19(4):329-332
Objective To analyze the epidemiological features and trends of glenoid fractures from 2003 through 2012 in the Third Affiliated Hospital to Hebei Medical University.Methods The clinical data were collected of the patients with glenoid fracture who had been treated between January 2003 and December 2012 in our hospital.The patients' gender,age and fracture type of Ideberg classification were documented.The data from January 2003 to December 2007 were assigned into group A and those from January 2008 to December 2012 into group B.The 2 groups were compared to find out the general epidemiological characteristics and trends in the recent 10 years.Results A total of 225 patients with glenoid fracture were collected,including 176 males and 49 females.The total male/female ratio was 3.59∶ 1.The glenoid fractures predominated in an age range of 31 to 40 years (23.56%).According to Ideberg classification,there were 35 cases (15.56%) of type Ⅰ,58 ones (25.78%) of type Ⅱ,64 ones (28.44%) of type Ⅲ,21 ones (9.33%) of type Ⅳ,30 ones(13.33%) of type Ⅴ and 17 ones(7.56%) of type Ⅵ.The male/female ratio was 5.29∶1 in group A of 107 patients and 2.69∶1 in group B of 118 patients.The mean age of group A was 40.2 ± 16.0 years and that of group B 47.5 ± 14.8 years.The differences in male/female ratio,mean age and distribution of age were statistically significant between the 2 groups (P < O.05).The fractures predominated in an age range of 31 to 40 years (28.97%) in group A and in the age group of 51 to 60 years (27.12%) in group B.The most frequent fracture type was type Ⅲ in both groups,accounting for 29.91% and 27.12% respectively.There was no significant difference between the 2 groups in distribution of Ideberg classification (P > 0.05).Conclusions The peak age of glenoid fractures was from 31 to 40 years.There was an increasing trend in the mean age.There were more male patients than female ones.The high-frequency type was Ideberg type Ⅲ.
9.Comparative analysis of flow diversion and stent -assisted embolization in treatment of intracranial aneurysms larger than/equal to 10 mm
Tao QUAN ; Yanjiang CHEN ; Lingmin WANG ; Sheng GUAN ; Chao LIU ; Zibo WANG ; Haowen XU
Chinese Journal of Neuromedicine 2018;17(12):1227-1233
Objective To explore the clinical and imaging efficacies of stent-assisted embolization and flow diversion in the treatment of intracranial aneurysms ≥10 mm. Methods Eighty-six patients with intracranial aneurysms≥10 mm, admitted to our hospital from January 2012 and February 2018, were chosen in our study; all 22 patients with ruptured aneurysms accepted stent-assisted embolization. Singular stent-assisted embolization was used in 55 patients, multiple stent-assisted embolization was used in 18 patients, and flow diversion was used in 13 patients. The immediate postoperative complete occlusion rate, complication incidence, and clinical and imaging follow-up data were retrospectively analyzed. Results (1) Results of immediate postoperative complete occlusion:Raymond grading I was noted in 56 patients, grading II in 6 patients, and grading III in 24 patients. Significant differences on immediate postoperative complete occlusion rates were noted among the three group (P<0.05); one patient had intra-stent thrombosis in the patients from singular stent-assisted embolization group, one patient with middle cerebral artery aneurysm had contralateral muscular dysplasia resulted from perforator occlusion and one patient with basal aneurysm had dysarthria resulted from perforator lesion in the patients from multiple stent-assisted embolization group; no perioperative complication was noted in patients from flow diversion group. (2) The prognosis of 86 patients was good;imaging follow-up results showed that 32 patients had occlusion, 7 had neck residue and 16 had recurrence in the singular stent-assisted embolization group; 11 patients had occlusion, one had neck residue and 6 had recurrence in the multiple stent-assisted embolization group; 11 patients had occlusion and 2 had neck residue in the flow diversion group; there were no statistically significant differences in follow-up results of aneurysms among the three groups (P>0.05). Conclusion Both flow diversion and stent-assisted embolization are effective methods for treatment of intracranial aneurysms≥10 mm.
10.Property theory of Chinese materia medica:Clinical pharmacodynamics of traditional Chinese medicine
Qiao YANJIANG ; Zhang YANLING ; Peng SHA ; Huo MENGQI ; Li JING ; Cao YANFENG ; Chen ZHAO
Journal of Traditional Chinese Medical Sciences 2022;9(1):7-12
The property theory of Chinese materia medica is one of the foundations of traditional Chinese medicine.The property of Chinese materia medica (PCMM) is a multi-dimensional expression of the effect of Chinese materia medica (CMM),and it is related to the clinical prescription that fully reflects the clinical effect evaluation of CMM in a holistic,systematic,and scientific way.This paper discusses the source,development,and application of the PCMM by considering not only the five dimensions that constitute the PCMM but also the recognition of the human body and disease as given in traditional Chinese medicine.This paper aims to provide theoretical guidance for the rational use and development of CMM.