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ObjectiveTo clarify the spatial distribution characteristics of medicinal plant resources in Gansu province， analyze the causes， changing trends， and driving factors of the spatial differentiation， and thus lay a scientific basis for the rational development and sustainable development of medicinal plant resources in this province. MethodBased on the data of The Fourth National Survey of Chinese Medicine Resources， the richness and spatial distribution difference of medicinal plant resources in 87 counties （districts） of Gansu province were analyzed via the global spatial autocorrelation analysis， trend surface analysis， local spatial autocorrelation analysis， and hotspot analysis. Moreover， the correlation of vegetation type， soil texture， annual average temperature， annual average precipitation， and altitude with the spatial distribution pattern of the medicinal plant resources was discussed. ResultCounties （districts） with high or low richness of medicinal plant resources in Gansu province were respectively clustered together. To be specific， counties （districts） with high richness of the medicinal resources were mainly in southeastern Gansu， while those with low richness in northwestern Gansu. The leading driving factors affecting the cold and hot spots included vegetation type， soil texture， and average annual rainfall. ConclusionThe species richness of medicinal plant resources in Gansu province rises from west to east and from north to south. The natural driving factors are the key to the diversity and spatial distribution pattern of medicinal plant resources， which show significant influence on them.
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With the advent of the era of artificial intelligence, as an emerging technology, radiomics can extract a large amount of quantitative information describing the physiological condition and phenotypic characteristics of tumors with high throughput from the massive data of CT, MRI and other imaging tomography, and analyze these high-dimensional imaging omics features containing disease pathophysiological information can be used to accurately determine tumor differentiation, staging, and predict tumor behavior, which has broad application prospects. This article aims to introduce the technical principles of radiomics and its abdominal tumor application status, and to prospect its application prospects in pediatric abdominal neuroblastoma.
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Child , Humans , Abdominal Neoplasms/diagnostic imaging , Artificial Intelligence , Magnetic Resonance Imaging , Precision Medicine , Tomography, X-Ray ComputedABSTRACT
Objective:To summarize the surgical experience of carotid body tumor (CBT)and analyze the risk factors.Methods:The clinical and follow-up data of 133 patients with carotid body tumor undergoing surgery at the First Medical Center of PLA General Hospital from Nov 2005 to Apr 2019 were retrospectively analyzed.Results:All of 142 tumors were successfully resected. No patients died perioperatively. Thirty-three (23.2%) cases underwent simple tumor resection, 82 (57.8%) cases underuent tumor resection combined with external carotid artery ligation, 13 (9.2%) cases did internal carotid artery reconstruction, 10 (7.0%) cases had total or external carotid artery repairment, and 4 (2.8%) cases underwent total or internal carotid artery ligation. There were 53 complications, including 43 cases of cranial nerve injury, with an average operating time of 161min (60-500 min), an average blood loss of 308 ml (20-3 000 ml). The follow-up time ranged from 1 to 162 months. No death occurred during the follow-up period.Conclusions:Tumor size and Shamblin typing are surgical risk factors. Most of ShamblinⅠtype tumor can do simple resection, but type Ⅱ and Ⅲ often need to ligate the external carotid artery. Use of great saphenous vein has a favorable long-term patency rate.
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Objective:To summarize the midterm to long-term outcomes and experiences of endovascular treatment (ET) of spontaneous isolated superior mesenteric artery dissection (SISMAD).Methods:The clinical data of 31 SISMAD patients from Jan 2011 to Dec 2019 treated with ET was retrospectively analyzed.Results:Successful ET was achieved in 29 patients with a technical success rate of 93.5%. A total of 36 self-expandable bare stents were planted in 28 patients and plain old balloon angioplastry (POBA) was performed in 1 patient. Abdominal pain disappeared within 24 hours in 89.3% of the patients after stenting. The rate of perioperative complication was 3.2%. There was no SMA dissection rupture bleeding, nor perioperative death occurred. The mean follow-up time was 53.5 (range, 6 to 110) months. There was no dissecting aneurysm formation, no SMA rupture and bleeding, and no stent rupture during the follow-up. The post ET 1-year, 3-year, and 5-year free from reintervention rate were 100%, 100%, and 91.7%, respectively.Conclusions:ET for SISMAD is safe and effective with satisfactory perioperative and midterm to long-term outcomes.
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Objective@#To explore the effect of aerobic plus resistance training on the intervention of adolescents with moderate mental retardation and to provide reference for healthy development among specific need population.@*Methods@#Totally 29 adolescents with moderate mental retardation, aged 12-17 years from one middle school in Shunde district of Foshan, were divided into intervention group and control group (16/13) with random number table. The intervention group was subjected to aerobic combined resistance exercise for 11 weeks. The control group maintained the original activities. The changes in body composition, muscle strength, cardiorespiratory endurance and balance ability of the two groups of subjects before and after intervention were compared.@*Results@#After the intervention, the intervention group s skeletal muscle (22.90±3.63)kg, muscle mass (39.75±5.57)kg, lean body mass (41.52±6.79)kg, sitting arm support (49.19±35.28)s, standing timing test (22.13±6.01)s, half crunches (20.12±6.48), grip strength [left (15.98±4.86)kg; right (16.37±5.46)kg], heart rate immediately after 2 min stepping exercise (91.43±13.44)frequency/min, Standing on one foot with eyes closed [left (5.82±5.20)s; right (6.02±5.56)s] compared with before exercise, the body fat decreased(t=2.57,2.72,2.07,2.10,3.31,2.92,2.76,3.44, 2.86,2.04,2.38, -2.92,P<0.05); after the intervention, the sitting arm support and closed eyes standing(right) improved(P<0.05).@*Conclusion@#Aerobic combined resistance exercise can improve muscle strength and endurance, aerobic endurance and balance ability in adolescents with moderate mental retardation and adaptability of teenagers with moderate mental retardation.
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As a new type of magnetic resonance imaging method, amide proton transfer (APT) imaging can detect the chemical exchange characteristics of free proprotein, peptide amide proton and water proton by water signal changes, reflecting the changes of protein and pH in tissues. In recent years, clinical research on brain tumors, multiple sclerosis, hepatic encephalopathy and cervical cancer have been carried out. It is a radiation-free and non-invasive new magnetic resonance molecular imaging technology. This study briefly reviews the principle of APT technology and its clinical application, and prospects its application prospects in children's abdominal tumors.
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Child , Humans , Abdomen/pathology , Amides , Magnetic Resonance Imaging , Neoplasms/diagnostic imaging , ProtonsABSTRACT
Objective To investigate the safety and mid-term efficacy of percutaneous endovascular angioplasty(PTA) and stent implantation for transplantation renal arterial stenosis (TRAS).Methods Retrospective analysis was performed on 18 patients with TRAS admitted to of department vascular surgery,PLA General Hospital from Jan 2011 to Dec 2018.Results PTA and stent implantation were performed in all 18 patients via ipsilateral or contralateral femoral artery including 4 cases of PTA alone,8 cases of PTA plus stent,6 cases of stent implanted directly.Three of the 18 patients underwent ipsilateral femoral artery catheterization and 15 underwent contralaterally.A total of 14 stents were implanted,all of were balloon expanding stents,of which 2 were drug-coated stents,and the technical success rate was 100％.The average dosage of contrast agent was 64 ml,the stenosis rate of renal artery before interventional treatment was 50％-99％,and that after interventional treatment reduced to 10％-30％.The systolic blood pressure decreased from (157.2 ± 43.0) mmHg preoperatively to (129.8 ± 8.6) mmHg postoperatively.The SCr level decreased from (258.8 ± 214.7) μ mol/L to (176.3 ± 101.1) μmol/L.Preoperative urea nitrogen decreased from (15.7 ± 1.6) mmol/L to (10.6 ± 1.1) mmol/L postoperatively (P ＜ 0.05).Mean postoperative follow-up time was 42.4 months (3-93 months).17 cases were cured,1 case was ineffective,1 case suffered restenosis after 30 days,and was given remedy PTA plus stenting.Conclusions TRAS is a vascular factor leading to grafted renal failure,the endovascular treatment of TRAS is safe,effective and has good mid-term result.
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Objective@#To analyze the relationship between serum vitamin D level and the risk of type 2 diabetes in Harbin residents.@*Methods@#On April 2010, 24 communities in 7 districts of Harbin were selected as research sites using multi-stage stratified cluster random sampling method. A total of 9 734 residents aged 20-74 years was investigated using general questionnaire survey, dietary survey and biochemical indicators test and followed up from January 2015 to July 2016. A total of 4 721 subjects with serum vitamin D were included in the study. According to the quartile of baseline serum vitamin D, the subjects were divided into four groups, from Q1 to Q4 group. The multivariate logistic regression model was used to analyze the relationship between serum vitamin D and the risk of type 2 diabetes. A mediation analysis model was used to analyze the mediating role of insulin resistance in this risk relationship.@*Results@#At the time of follow-up, 432 patients with type 2 diabetes were screened. The median (P25, P75) age of the diabetic group and the non-diabetic group were 54 (49, 61) and 51 (43, 57) years, respectively, and males accounted for 40.5% (175 cases) and 35.5% (1 513 cases), respectively. The median (P25, P75) serum vitamin D was 16.0 (13.5, 18.5) and 17.4 (14.3, 20.5) ng/ml, respectively. After relevant confounders and insulin resistance index (HOMA-IR) were adjusted, compared to the serum vitamin D level Q1 group, the risk of diabetes was reduced by 40% in the Q3 group with RR (95%CI) about 0.60 (0.44-0.82), while the risk of diabetes was reduced by 59% in Q4 group with RR (95%CI) about 0.41 (0.29-0.57). Through mediation analysis, the Gutt index mediating effect representing peripheral insulin resistance was 53.8%, and the mediating effect of HOMA-IR representing hepatic insulin resistance was 6.6%.@*Conclusion@#The risk of type 2 diabetes is low in Harbin residents with higher serum vitamin D level. Insulin resistance has a mediating effect on the relationship of vitamin D and the risk of type 2 diabetes.
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Objective@#To evaluate the safety and efficacy of the drug coated balloon(DCB) for complex TASC C/D superficial femora-popliteal artery diseases.@*Methods@#Patency, target lesion revascularization (TLR) rate, clinical improvement and safety endpoints of femora-popliteal lesions in 68 patients from PLA General Hospital treated with DCB were retrospectively analyzed from June 2016 to June 2018. The mean age of the patients were (72.7±13.2) years old. Rutherford categories were from 2 to 5, and ABI baseline were 0.56±0.22.@*Results@#There were 76 limbs treated by DCB in total in this study. Mean lesion length was (26.7±15.3) cm. 73.6% of lesions were totally occluded, 26.4% were of stenosis and 61.8% were highly calcified. Stent implantation was performed in 36.8% cases. Kaplan Meier estimates of primary patency were 74.2%±7.6% and 67.7%±6.4% at 1 and 2 years, respectively, whereas freedom from TLR was 81.4%±5.1% and 73.6%±5.4%. ABI were 0.83±0.16 at 1 year, and 0.79±0.24 at 2 years. Major amputation rate was 2.9% and mortality rate was 2.9% and 4.4% at 1 year and 2 years respectively. Diabetes, highly calcification, renal insufficiency and re-stenotic lesions were identified as predictors of restenosis.@*Conclusions@#DCB are safe and effective in delaying restenosis in complex TASC C/D superficial femora-popliteal artery disease as found by midterm follow-up.
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Objective@#Assessment of short-term and mid-term changes of knee cartilage in non-professional long-distance runners before and after marathon using T2 mapping imaging.@*Methods@#Twenty-four knee joints of 12 healthy volunteers (5 males and 7 females) who participated in the marathon were examined by 3.0 T MRI one week before the race, within 12 hours after the race and two months after the race, respectively. The age ranged from 21.0 to 37.0 years. Athletes run more than three times a week, and each time was about 30 minutes. From T2 mapping we can obtain T2 value of 6 cartilage subregions of knee joint. Paired t-test was used to compare the T2 values of cartilage before and after the marathon. The comparison between the superficial and deep T2 values of cartilage was performed by independent sample t test.@*Results@#T2 mapping imaging showed that the T2 value of the superficial articular cartilage was higher than that of deep articular cartilage in pre-competition, within 12 hours after competition and 2 months follow-up, respectively (t=11.095, 10.385 and 10.102, P<0.01). The T2 value of superficial articular cartilage decreased after the competition compared with that of pre-competition (t=2.18,P<0.05), while the T2 value of deep articular cartilage showed no significant difference compared with that of pre-competition (t=1.832, P> 0.05). Except for the MTP-DZ, the T2 value of the remaining cartilage subregions showed a trend of decrease within 12 hours after the competition. There were significant differences in the subregion of MFC-DZ (t=2.110,P<0.05). At the follow-up of 2 months, cartilage T2 values of the MTP-SZ,LTP-SZ,LTP-DZ,MFC-DZ, Patella-SZ, Patella-DZ, Trochlea-SZ, Trochlea-DZ subregions showed a trend of recovery, and there was no significant difference compared with pre-competition (t=0.857,0.573, 0.146, 0.510, -0.594, -1.135, -0.812, -0.679; P>0.05). The T2 values of the LFC-SZ and LFC-DZ were lower than those before the race, with statistical significance (t=2.378, 3.147,P<0.05).@*Conclusion@#T2 value could reflect the change process of articular cartilage tissue composition in marathon runners from T2 mapping imaging. Under stress, the changes of superficial T2 value are more significant. The T2 value of knee cartilage can gradually recover to the pre-run level 2 months after running.
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Objective Assessment of short?term and mid?term changes of knee cartilage in non?professional long?distance runners before and after marathon using T2 mapping imaging. Methods Twenty?four knee joints of 12 healthy volunteers (5 males and 7 females) who participated in the marathon were examined by 3.0 T MRI one week before the race, within 12 hours after the race and two months after the race, respectively. The age ranged from 21.0 to 37.0 years. Athletes run more than three times a week, and each time was about 30 minutes. From T2 mapping we can obtain T2 value of 6 cartilage subregions of knee joint. Paired t?test was used to compare the T2 values of cartilage before and after the marathon. The comparison between the superficial and deep T2 values of cartilage was performed by independent sample t test. Results T2 mapping imaging showed that the T2 value of the superficial articular cartilage was higher than that of deep articular cartilage in pre?competition, within 12 hours after competition and 2 months follow?up, respectively (t=11.095, 10.385 and 10.102, P<0.01). The T2 value of superficial articular cartilage decreased after the competition compared with that of pre?competition (t=2.18,P<0.05), while the T2 value of deep articular cartilage showed no significant difference compared with that of pre?competition (t=1.832, P> 0.05). Except for the MTP?DZ, the T2 value of the remaining cartilage subregions showed a trend of decrease within 12 hours after the competition. There were significant differences in the subregion of MFC?DZ (t=2.110,P<0.05). At the follow?up of 2 months, cartilage T2 values of the MTP?SZ,LTP?SZ,LTP?DZ,MFC?DZ, Patella?SZ, Patella?DZ, Trochlea?SZ, Trochlea?DZ subregions showed a trend of recovery, and there was no significant difference compared with pre?competition(t=0.857,0.573, 0.146, 0.510,-0.594,-1.135,-0.812,-0.679; P>0.05). The T2 values of the LFC?SZ and LFC?DZ were lower than those before the race, with statistical significance (t=2.378, 3.147,P<0.05). Conclusion T2 value could reflect the change process of articular cartilage tissue composition in marathon runners from T2 mapping imaging. Under stress, the changes of superficial T2 value are more significant. The T2 value of knee cartilage can gradually recover to the pre?run level 2 months after running.
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Objective To evaluate the safety and efficacy of the drug coated balloon (DCB) for complex TASC C/D superficial femora-popliteal artery diseases.Methods Patency,target lesion revascularization (TLR) rate,clinical improvement and safety endpoints of femora-popliteal lesions in 68 patients from PLA General Hospital treated with DCB were retrospectively analyzed from June 2016 to June 2018.The mean age of the patients were (72.7 ± 13.2) years old.Rutherford categories were from 2 to 5,and ABI baseline were 0.56 ± 0.22.Results There were 76 limbs treated by DCB in total in this study.Mean lesion length was (26.7 ± 15.3) cm.73.6％ of lesions were totally occluded,26.4％ were of stenosis and 61.8％ were highly calcified.Stent implantation was performed in 36.8％ cases.Kaplan Meier estimates of primary patency were 74.2％ ± 7.6％ and 67.7％ ± 6.4％ at 1 and 2 years,respectively,whereas freedom from TLR was 81.4％ ±5.1％ and 73.6％ ±5.4％.ABI were 0.83 ±0.16 at 1 year,and 0.79 ±0.24 at 2 years.Major amputation rate was 2.9％ and mortality rate was 2.9％ and 4.4％ at 1 year and 2 years respectively.Diabetes,highly calcification,renal insufficiency and re-stenotic lesions were identified as predictors of restenosis.Conclusions DCB are safe and effective in delaying restenosis in complex TASC C/D superficial femora-popliteal artery disease as found by midterm follow-up.
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Objective@#To understand food intake frequency among primary students in six cities of China, and to provide evidence for nutrition education and intervention strategies.@*Methods@#A multi-stage stratified cluster random sampling method was used to select 12 197 grade 4 and grade 5 primary school students from 72 primary schools in Beijing，Guangzhou,Nanjing,Chongqing,Jinan,Harbin. All the participants were administered with a self-administered questionnaire on dietary behaviors.@*Results@#For the fourth and fifth grade primary school students, the highest proportion of "almost every day" was fresh vegetable(83.2%), and the highest proportion of "nearly eaten" was oat (50.2%). There was a remarkable difference between children of different genders, areas and grades. The intake of whole grains, meat and poultry, fishery products, eggs, soybeans and nutritional supplements of boys was higher than that of girls, while the intake of oats, fresh vegetables, fruits, fungi and algae of girls was higher than that of boys. The intake of oats, vegetables, fruits, fungi and algae, meat and poultry, milk of central urban areas students was higher than that of suburban areas students, while the intake of fishery products, soybeans and nutritional supplements of suburban areas students was higher than that of central urban areas students. The intake of oats, fresh vegetables, fruits, meat and poultry, eggs, milk and soybeans of fifth grade students was higher than that of fourth grade students, while the intake of whole grains, fishery foods and nutritional supplements of grade 4 students was higher than that of grade 5 students. The differences were all statistically significant(P<0.05).@*Conclusion@#The frequency of food intake varies among students of different genders, urbanities and grades. School teachers, parents and community workers should make efforts targeting at students with different characteristics to enhance nutritional literacy and cultivate healthy eating behaviors.
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Objective To evaluate the outcome of the endovascular aortic repair (EVAR) of abdominal aortic aneurysms (AAA) with diabetes mellitus (DM) and analyze the factors that influence its mid-long-term curative effect.Methods From Jan 2004 to Jun 2014,follow-up data of 103 AAA patients with DM treated with EVAR was analyzed retrospectively.Results Effective follow-up visits were conducted on 88 patients (85.43％).The patients were tracked for an median of 3.59 years,with the longest follow-up 10.32 years.25 deaths occurred and the all-cause mortality rate was 24.3％.6 cases had intervention-related complications (5.8％),including endoleaks,thrombosis,embolism,infection,false aneurysms.2 secondary interventions were conducted on 2 patients.The five-year cumulative survival rate was 70％ and the ten-year cumulative survival rate was 61％.Conclusion EVAR is safe for AAA patients with DM.
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Objective To evaluate midterm outcomes of thoracic endovascular aortic repair (TEVAR) with in situ fenestration (ISF) to revascularize the aortic arch vessels.Methods From Feb 2012 to Dec 2014,10 patients underwent TEVAR with aortic arch vessels revascularized via ISF.There were 6 patients of thoracic aortic aneurysms (TAA) and 4 of type B aortic dissection (TBAD).Patients were followed for all-cause mortality,endoleak of post-TEVAR,integrity and patency of aortic endograft and branch vessels.Results Totally 11 branch vessels [10 left subclavian arteries (LSA),1 left common carotid artery (LCA)] via ISF were revascularized in 10 patients.Patients were followed-up for 24-55 mouths,mean of 42.80 months.1 TAA patient died in 2 years post-TEVAR unrelated to the operation.All fenestrations remained patent,and there were no endoleaks and no occlusion,compression,or fracture of stents.There were no postoperative strokes and left upper limbs ischemia.1 patient had distal aortic endograft pseudoaneurysms formation in 2 years post-TEVAR and underwent reTEVAR treatment.Conclusion Aortic arch vessels revascularization via ISF in TEVAR is safe and feasible.Midterm outcomes is satisfactory.
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Objective To study the safety and efficacy of detachable fibered coils occlusion system for visceral artery aneurysms.Methods Thirty-three visceral artery aneurysms patients (12 males and 21 females) with an average age of 63.8±3.5 years who underwent endovascular embolization with detachable fibered coils occlusion system combined with standard pushable coils in our hospital were included in this study.Of these patients,20 (60.6％),7 (21.2％),3 (9.1％),2 (6.1 ％),and 1 (3.0％) were respectively diagnosed with splenic artery aneurysm,renal aneurysm,superior mesenteric aneurysm,celiac aneurysm,and pancreaticoduodenal aneurysm.The mean diameter of aneurysms was 16-38 (24.0±3.4)mm.The success rate of detachable fibered coils occlusion system for visceral artery aneurysms,postoperative complications and surgical procedure time were recorded.The patients received CT or ultrasonographic follow up at months 3,6,12 and every year after operation.Results The success rate of detachable fibered coils occlusion system for visceral artery aneurysms was 100％.No intraoperative bleeding and coil migration occurred.One patient with splenic artery dissection did not undergo operation.The patients were followed up for 2-24 (12.5±2.3) months,during which no enlargement or rupture of visceral artery aneurysms and no operation-related severe complication or death occurred.Conclusion Detachable fibered coils occlusion system combined with standard pushable coils is safe and effective for mild and moderate visceral artery aneurysms.
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Xiao Ke Qing (XKQ) granule has been clinically used to treat type 2 diabetes mellitus (T2DM) for 10 years in Chinese traditional medication. However, its mechanisms against hyperglycemia remain poorly understood. This study aims to investigate XKQ mechanisms on diabetes and diabetic liver disease by using the KKAy mice model. Our results indicate that XKQ can significantly reduce food and water intake. XKQ treatment also remarkably decreases both the fasting blood glucose and blood glucose in the oral glucose tolerance test. Additionally, XKQ can significantly decrease the serum alanine aminotransferase level and liver index and can alleviate the fat degeneration in liver tissues. Moreover, XKQ can ameliorate insulin resistance and upregulate the expression of IRS-1, PI3K (p85), p-Akt, and GLUT4 in the skeletal muscle of KKAy mice. XKQ is an effective drug for T2DM by ameliorating insulin resistance and regulating the PI3K/Akt signaling pathway in the skeletal muscle.
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Animals , Female , Mice , Blood Glucose , Metabolism , Diabetes Mellitus, Type 2 , Drug Therapy , Metabolism , Disease Models, Animal , Drugs, Chinese Herbal , Pharmacology , Glucose Tolerance Test , Glucose Transporter Type 4 , Metabolism , Hypoglycemic Agents , Pharmacology , Insulin , Blood , Insulin Resistance , Liver , Pathology , Mice, Inbred C57BL , Phosphatidylinositol 3-Kinases , Metabolism , Proto-Oncogene Proteins c-akt , Metabolism , Signal TransductionABSTRACT
Objective To study the feasibility of diffusion tensor imaging(DTI) in assessment of lumbosacral neuropathy. Methods Eighteen patients with lumbosacral neuropathy (experimental group) and 20 healthy volunteers (control group) were enrolled prospectively in the neurological department by clinical symptoms and neuroelectrophysiology. The experimental group were divided into experimental subgroup A(demyelination group, 6 cases),subgroup B(axonal injury with demyelination group, 12 cases) based on electrophysiology.All of L4-SN nerves of the experiment group and the control group received DTI examination."Sowing points"as ROIs were placed in the proximal, middle and distal of bilateral L4-SN nerves by two experienced physicians.The average of the DTI parameters of 3 ROIs at each nerve were used as its final DTI parameters.Independent sample t test was used to evaluate the difference of the L4-SN DTI parameters between the experimental group and the control group.The differences of DTI parameters among the control group, the experimental subgroup A and the experimental subgroup B were compared by the nonparametric independent samples Kruskal-Wallis H test and the Nemenyi test. The ROC analysis was performed on the FA values and λ⊥values of the control and experimental groups.Results (1)The L4-SN FA values in the experimental group was significantly lower than those in the control group (t range from 4.11 to 6.36, P<0.05). The L4 and S1-SN ADC values of the experimental group were significantly higher than those of the control group (t range from - 4.77 to - 1.17, P<0.05). The L4-SN λ ⊥ values in the experimental group were significantly higher than those in the control group (t range from -5.30 to -2.57，P< 0.05). (2) L4-SN FA values (H values ranged from 18.5 to 30.6, P<0.05), λ⊥ values (H values ranged from 6.8 to 29.2, P<0.05) and L4, S1-SN ADC values (H values ranged from 6.8 to 19.6, P<0.05) were significantly different among control group, experimental subgroup A and experimental subgroup B. Nemenyi test showed there were significant differences in FA values (H values ranged from 18.4 to 30.1,P<0.05) and λ⊥ values (H values ranged from 6.2 to 29.0, P<0.05)) of L4-SN and in ADC values (H values ranged from 6.4 to 19.54, P<0.05) of L4，S1-SN between control group and experimental subgroup B. (3) The analysis of ROC of the experimental group and control group showed the AUC values of L4-SN FA values were 0.834, 0.745, 0.860, 0.772, 0.811 respectively, the sensitivity were 66.7%, 72.2%, 77.8%, 83.3% and 66.7% respectively, and the specificity were 91.7%,69.4%,80.6%,61.1% and 88.9% respectively. The AUC values of L4-SN λ⊥ values were 0.796, 0.656, 0.791, 0.701, 0.843 respectively, and the sensitivity were 55.6%, 50.0%, 66.7%, 97.2% and 88.9% respectively,and the specificity were 91.7% , 77.85% , 86.1% , 36.1% and 66.7% respectively. Conclusion DTI has the feasibility to evaluate lumbosacral neuropathy and it can identify patients with axonal injury with demyelination and healthy subjects.
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Background:The diagnostic accuracy of APRI and FIB-4 for liver fibrosis in patients with chronic hepatitis B is nothigh,especially for significant liver fibrosis (F≥2). Noninvasive diagnosis for liver fibrosis has become a research hotspot;and the diagnostic value of APRI combined with FIB-4 is not clear. Aims:To investigate the diagnostic value ofAPRI combined with FIB-4 for significant liver fibrosis in patients with chronic hepatitis B. Methods:A total of 171patients with chronic hepatitis B from January 2011 to October 2016 at General Hospital of Xinjiang Military Region wereenrolled. Liver biochemical indices,routine blood test and liver biopsy pathology were performed. APRI and FIB-4 werecalculated,ROC curve was drawn,and cutoff value of APRI and FIB-4 for diagnosing significant liver fibrosis wasdetermined,and mode of APRI combined with FIB-4 for diagnosing significant liver fibrosis was established. Results:Withthe increase in degree of liver fibrosis,APRI and FIB-4 were gradually increased (P < 0. 05). Area under ROC curve(AUC)for APRI and FIB-4 were 0. 812 and 0. 770,respectively. The sensitivity of FIB-4 for diagnosing significant liverfibrosis was higher than that of APRI. Sensitivity,specificity,negative predictive value,positive predictive value,andaccuracy of APRI combined with FIB-4 for diagnosing significant liver fibrosis were superior to APRI or FIB-4 used alone;and the specificity,accuracy of mode 2 were superior to mode 1. Conclusions:APRI combined with FIB-4 can increasethe accuracy for diagnosing significant liver fibrosis.
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Objective To assess the correlation between fractional anisotropy(FA) value and α-SMA of renal tissue in patients with chronic kidney disease (CKD).Methods 33 CKD patients underwent MRI standard scanning and diffusion tensor imaging(DTI).FA values were measured on both medulla and cortex of bilateral kidneys on the FA map.24 patients were performed renal biopsy to detect the expression of α-SMA.The integrated optical density of positive-staining region was calculated for each view.The relationship between the FA values and the integrated optical densities of α-SMA was analyzed by using Bivariate correlation analysis.Results There was a significant negative correlation between the cortical FA values and the integrated optical densities of α-SMA (P=0.001).There was a significant negative correlation between the medullary FA values and the integrated optical densities of α-SMA (P=0.035).Conclusion FA value of DTI was correlated with α-SMA of renal tissue in patients with CKD.