Objective To observe the value of T2 mapping for quantitatively evaluating the changes of junctional zone and outer myometrium caused by endometrial fibrosis.Methods A total of 73 infertility patients with endometrial fibrosis confirmed by hysteroscopy(disease group)and 33 healthy women of childbearing age(control group)were prospectively enrolled,and MR examinations were performed at the late proliferative phase of endometrium.The thickness and T2 value of junctional zone,T2 value of outer myometrium on anterior,posterior and fundus wall of midsagittal corpus uteri were measured,and the mean value of the above measurements on the three walls were calculated.Receiver operating characteristic curves were constructed,the areas under the curves(AUC)were calculated to explore the efficacy of those with significant difference among the mean thickness and the mean T2 value of junctional zone,the mean T2 value of outer myometrium and their combination for evaluating endometrial fibrosis.Results The thickness and T2 value of anterior wall,posterior wall,fundus wall and the mean junctional zone in disease group were all significantly higher than those in control group(all P＜0.001).No significant difference of T2 value of anterior wall,posterior wall,fundus wall nor the mean outer myometrium was found between groups(all P＞0.05).The mean thickness and the mean T2 value of junctional zone and their combination could be used to effectively evaluate endometrial fibrosis,with AUC of 0.839,0.822 and 0.922,respectively,and their combination had the best performance(both P＜0.01).Conclusion T2 mapping could be used to quantitatively evaluate the injury of junctional zone caused by endometrial fibrosis.

Objective:To investigate the clinical characteristics of pregnancy complicated with Beh?et′s disease, so as to improve the diagnosis and treatment of the disease and improve maternal and neonatal outcomes.Methods:A retrospective analysis was conducted on the clinical data of 10 pregnant women with Beh?et′s disease, who were admitted to Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School from January 2016 to June 2024. The maternal and neonatal outcomes were analyzed.Results:The 10 pregnant women with Beh?et′s disease had a mean age of (31.2±5.3) years (range: 25-41 years). Nine were diagnosed before pregnancy and one was diagnosed during the second trimester of pregnancy. The mean age of disease onset was (20.5±6.1) years (range: 10-34 years). Clinical manifestations included oral ulcers, genital ulcers, fever, uveitis, hematochezia, diarrhea, constipation, and skin rash. Nine of them received medication during pregnancy, while one did not. The disease conditions of five women were active during pregnancy and other five remained stable. In terms of delivery mode, five women had vaginal delivery and five delivered by cesarean section. Nine delivered at term and one had preterm delivery. All neonates survived without adverse outcomes.Conclusions:The management of pregnancy complicated with Beh?et′s disease requires a multidisciplinary team approcach. Individualized decisions regarding medication, timing of delivery, and mode of delivery are essential to achieve optimal maternal and fetal outcomes.

Objective:To assess the feasibility and efficacy of transperineal laser ablation(TPLA)with single laser fiber in treating benign prostatic obstruction(BPO).Methods:From April 2021 to March 2024,a total of 13 BPO patients were selected from Beijing Friendship Hospital.TPLA was performed using a single laser fiber,which was guided by transrectal biplane ultrasound.The single laser fiber was used to undergo TPLA under the guidance of trans-rectal dual-plane ultrasound.The intraoperative time,ablation time,energy consumption,indwelling time of catheter,and complications were observed.The postoperative 6 months was chosen as the cut-off point of follow-up,and the pre and postoperative changes of international prostate symptom score(IPSS),quality of life index(QoL),prostate volume(PV),residual urine volume(RUV)and the maximum urine flow rate(Qmax)were compared.Results:All 13 patients successfully underwent TPLA with single laser fiber.The average operation time was(55.1±18.3)min,and the average ablation time was(16.3±1.7)min,and average energy consumption was(3951.6±459.7)J,and the median value of indwelling time of catheter was 7(7,10)days.The number of postoperative complication was 2 cases,and both them belonged to Clavien-Dindo grade II complication.At the postoperative 6th month,the IPSS,QoL,PV,Qmax and RUV of all patients were improved,all of which were better than preoperative these indicators,and the differences were significant(t=12.102,-3.228,-3.181,-2.581,-2.936,P<0.05).Conclusion:The application of single laser fiber in conducting TPLA operation is feasibility at technical aspect,and it can achieve the therapeutic goals of improving patients'symptoms and enhancing their quality of life.Although its operational time is slightly longer than that of using multiple fibers simultaneously,it can effectively reduce the cost of expenditure for consumables.

Objective To find and select stable and specific identification indexes in chest CT images,to establish mathematical models and provide a systematic and scientific identification method.Methods Medical imaging analysis and processing technology were applied to compare the image indexes such as lung apical shadow,double lung texture,trachea,sternum,thoracic morphology,liver,spleen,interlobular fissure morphology,first rib,aorta and thoracic vertebrae morphology of 600 serial chest CT scans of of the same adults at different periods and 600 scans of different adults.Consistency test(Kappa analysis)was applied to determine the consistency of different identification indexes,and to screen out the image identification indexes that were not easily affected by subjective factors and had high consistency;the cumulative exclusion probability method was applied to calculate the combined identification ability of the observation indexes,and select optimal indexes to establish the identification index system.Results Five indexes-left lung texture,right lung texture,interlobular fissure of the liver,first rib on the left side,and first rib on the right side demonstrated high consistency across age groups and minimal subjective interference.A combination of any three indexes achieved＞99.99％discrimination probability for homologous versus non-homologous sources identification.Conclusion The independent or combined use of the indexes of left lung texture,right lung texture,interlobular fissure of the liver,first rib on the left side,and first rib on the right side enables individual identification in adult chest CT under different imaging conditions.

Objective To evaluate the effectiveness of a preventive workflow in participatory observation based on healthcare failure mode and effect analysis(HFMEA)in reducing intraoperative acquired pressure injury(IAPI)in patients undergoing spinal surgery,and to provide evidences for prospective nursing management.Methods A preventive workflow of participatory observation-based HFMEA was established,which included defining HFMEA topic,forming a multidisciplinary team,creating a process map(through participatory observation),conducting failure mode and hazard analysis(using a Hazard scoring matrix and decision tree analysis,and identifying the causes of key failure through Pareto chart analysis),implementing improvement actions,and tracking effectiveness.Ultimately,11 high-risk failure modes were identified for further improvement:poor design of form/information system,heavy workload and fast pace,lack of departmental regulations,risk factors of IAPI,and unclear duty and responsibility in a multidisciplinary team.A series measures for improvement were developed and implemented based on the identified key causes.A pre-and post-control study was carried out.A total of 180 patients who received spinal surgery between November and April 2024 and received traditional preventive methods were assigned to a control group.While further 218 patients who received spinal surgery between May and December 2023 were assigned to the trial group with the participatory observation on the basis of HFMEA prevention workflow.IAPI incidence rate and severity were compared between the two groups,as well as the completion rate of preoperative IAPI risk assessment in the trial group.Results The trial group demonstrated significantly lower IAPI incidence and severity compared with those in the control group(P<0.05).In the trial group,178 patients(98.92%)completed the preoperative IAPI risk assessment,and 172 patients(95.47%)completed the intraoperative assessment.Conclusion The participatory observation based HFMEA prevention workflow can effectively reduce an incidence and severity of IAPI in patients undergoing spinal surgery,ensure patient safety and thereby enhance the quality of nursing management.

Objective To find and select stable and specific identification indexes in chest CT images,to establish mathematical models and provide a systematic and scientific identification method.Methods Medical imaging analysis and processing technology were applied to compare the image indexes such as lung apical shadow,double lung texture,trachea,sternum,thoracic morphology,liver,spleen,interlobular fissure morphology,first rib,aorta and thoracic vertebrae morphology of 600 serial chest CT scans of of the same adults at different periods and 600 scans of different adults.Consistency test(Kappa analysis)was applied to determine the consistency of different identification indexes,and to screen out the image identification indexes that were not easily affected by subjective factors and had high consistency;the cumulative exclusion probability method was applied to calculate the combined identification ability of the observation indexes,and select optimal indexes to establish the identification index system.Results Five indexes-left lung texture,right lung texture,interlobular fissure of the liver,first rib on the left side,and first rib on the right side demonstrated high consistency across age groups and minimal subjective interference.A combination of any three indexes achieved＞99.99％discrimination probability for homologous versus non-homologous sources identification.Conclusion The independent or combined use of the indexes of left lung texture,right lung texture,interlobular fissure of the liver,first rib on the left side,and first rib on the right side enables individual identification in adult chest CT under different imaging conditions.

Objective:To investigate the clinical characteristics of pregnancy complicated with Beh?et′s disease, so as to improve the diagnosis and treatment of the disease and improve maternal and neonatal outcomes.Methods:A retrospective analysis was conducted on the clinical data of 10 pregnant women with Beh?et′s disease, who were admitted to Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School from January 2016 to June 2024. The maternal and neonatal outcomes were analyzed.Results:The 10 pregnant women with Beh?et′s disease had a mean age of (31.2±5.3) years (range: 25-41 years). Nine were diagnosed before pregnancy and one was diagnosed during the second trimester of pregnancy. The mean age of disease onset was (20.5±6.1) years (range: 10-34 years). Clinical manifestations included oral ulcers, genital ulcers, fever, uveitis, hematochezia, diarrhea, constipation, and skin rash. Nine of them received medication during pregnancy, while one did not. The disease conditions of five women were active during pregnancy and other five remained stable. In terms of delivery mode, five women had vaginal delivery and five delivered by cesarean section. Nine delivered at term and one had preterm delivery. All neonates survived without adverse outcomes.Conclusions:The management of pregnancy complicated with Beh?et′s disease requires a multidisciplinary team approcach. Individualized decisions regarding medication, timing of delivery, and mode of delivery are essential to achieve optimal maternal and fetal outcomes.

Objective To evaluate the effectiveness of a preventive workflow in participatory observation based on healthcare failure mode and effect analysis(HFMEA)in reducing intraoperative acquired pressure injury(IAPI)in patients undergoing spinal surgery,and to provide evidences for prospective nursing management.Methods A preventive workflow of participatory observation-based HFMEA was established,which included defining HFMEA topic,forming a multidisciplinary team,creating a process map(through participatory observation),conducting failure mode and hazard analysis(using a Hazard scoring matrix and decision tree analysis,and identifying the causes of key failure through Pareto chart analysis),implementing improvement actions,and tracking effectiveness.Ultimately,11 high-risk failure modes were identified for further improvement:poor design of form/information system,heavy workload and fast pace,lack of departmental regulations,risk factors of IAPI,and unclear duty and responsibility in a multidisciplinary team.A series measures for improvement were developed and implemented based on the identified key causes.A pre-and post-control study was carried out.A total of 180 patients who received spinal surgery between November and April 2024 and received traditional preventive methods were assigned to a control group.While further 218 patients who received spinal surgery between May and December 2023 were assigned to the trial group with the participatory observation on the basis of HFMEA prevention workflow.IAPI incidence rate and severity were compared between the two groups,as well as the completion rate of preoperative IAPI risk assessment in the trial group.Results The trial group demonstrated significantly lower IAPI incidence and severity compared with those in the control group(P<0.05).In the trial group,178 patients(98.92%)completed the preoperative IAPI risk assessment,and 172 patients(95.47%)completed the intraoperative assessment.Conclusion The participatory observation based HFMEA prevention workflow can effectively reduce an incidence and severity of IAPI in patients undergoing spinal surgery,ensure patient safety and thereby enhance the quality of nursing management.

Objective:To assess the feasibility and efficacy of transperineal laser ablation(TPLA)with single laser fiber in treating benign prostatic obstruction(BPO).Methods:From April 2021 to March 2024,a total of 13 BPO patients were selected from Beijing Friendship Hospital.TPLA was performed using a single laser fiber,which was guided by transrectal biplane ultrasound.The single laser fiber was used to undergo TPLA under the guidance of trans-rectal dual-plane ultrasound.The intraoperative time,ablation time,energy consumption,indwelling time of catheter,and complications were observed.The postoperative 6 months was chosen as the cut-off point of follow-up,and the pre and postoperative changes of international prostate symptom score(IPSS),quality of life index(QoL),prostate volume(PV),residual urine volume(RUV)and the maximum urine flow rate(Qmax)were compared.Results:All 13 patients successfully underwent TPLA with single laser fiber.The average operation time was(55.1±18.3)min,and the average ablation time was(16.3±1.7)min,and average energy consumption was(3951.6±459.7)J,and the median value of indwelling time of catheter was 7(7,10)days.The number of postoperative complication was 2 cases,and both them belonged to Clavien-Dindo grade II complication.At the postoperative 6th month,the IPSS,QoL,PV,Qmax and RUV of all patients were improved,all of which were better than preoperative these indicators,and the differences were significant(t=12.102,-3.228,-3.181,-2.581,-2.936,P<0.05).Conclusion:The application of single laser fiber in conducting TPLA operation is feasibility at technical aspect,and it can achieve the therapeutic goals of improving patients'symptoms and enhancing their quality of life.Although its operational time is slightly longer than that of using multiple fibers simultaneously,it can effectively reduce the cost of expenditure for consumables.

Objective To observe the value of T2 mapping for quantitatively evaluating the changes of junctional zone and outer myometrium caused by endometrial fibrosis.Methods A total of 73 infertility patients with endometrial fibrosis confirmed by hysteroscopy(disease group)and 33 healthy women of childbearing age(control group)were prospectively enrolled,and MR examinations were performed at the late proliferative phase of endometrium.The thickness and T2 value of junctional zone,T2 value of outer myometrium on anterior,posterior and fundus wall of midsagittal corpus uteri were measured,and the mean value of the above measurements on the three walls were calculated.Receiver operating characteristic curves were constructed,the areas under the curves(AUC)were calculated to explore the efficacy of those with significant difference among the mean thickness and the mean T2 value of junctional zone,the mean T2 value of outer myometrium and their combination for evaluating endometrial fibrosis.Results The thickness and T2 value of anterior wall,posterior wall,fundus wall and the mean junctional zone in disease group were all significantly higher than those in control group(all P＜0.001).No significant difference of T2 value of anterior wall,posterior wall,fundus wall nor the mean outer myometrium was found between groups(all P＞0.05).The mean thickness and the mean T2 value of junctional zone and their combination could be used to effectively evaluate endometrial fibrosis,with AUC of 0.839,0.822 and 0.922,respectively,and their combination had the best performance(both P＜0.01).Conclusion T2 mapping could be used to quantitatively evaluate the injury of junctional zone caused by endometrial fibrosis.