Objective:To study the relationship between perifollicular blood flow and follicule development, oocyte maturing rate, fertilizing rate, cleaving rate, embryo quality and the outcomes of embryo transfer. Methods: Th...Objective:To study the relationship between perifollicular blood flow and follicule development, oocyte maturing rate, fertilizing rate, cleaving rate, embryo quality and the outcomes of embryo transfer. Methods: The samples were selected from 66 suffers who underwent in vitro fertilization(IVF)or intracytoplasmic sperm injection(ICSl). Eeach patients' perifollicular blood flow(diameter ≥ 12mm )was estimated on the day of human chorionic gonadotropin(HCG)administration. Results:Among 66 cycles, 26(39.4%) cycles resulted in pregnancy, perifollicular blood flow resistance index(Rl), peak systolic velocity/end diastasis velocity(S/D) of non-pregnant group was significantly higher than that of the pregnant group (P 〈 0.004). When RI 〈 0.49, the pregnancy rates, fecundation rates, fertilization rates, metaphase numbers for the of second meiosis oocytes increased evidently (P 〈 0.05), but there were no statistical difference in gonadotropin dosage, cycle frequency, infertility years, ages, estradiol(E2)on the day of HCG administration, numbers of oocyet retrieved and high-quality embryo rates (P 〉 0.05 ). There were no statistical difference between non-pregnant group and pregnant group in S and D (P 〉 0.05 ). There was no correlation between periFollicular blood flow RI and follicular diameter by linear regression analysis. Conclusion:Our study shows that perifollicular blood flow RI and S/D are effective indices of predicting the pregnancy outcome of IVF-ET.展开更多
Purpose: To assess if injured eyes develop ocular blood flow disturbances that may contribute to development of traumatic glaucoma. Materials and Methods: 25 patients hospitalized for eye injury and elevated IOP were ...Purpose: To assess if injured eyes develop ocular blood flow disturbances that may contribute to development of traumatic glaucoma. Materials and Methods: 25 patients hospitalized for eye injury and elevated IOP were evaluated 24 months after the trauma. All injured and fellow eyes underwent IOP measure, visual field (HFAII, Central 30/2SITA), pulsatile ocular blood flow analysis (POBF, OBF Labs UK), CDI examination (PSV, EDV, and RI) of Ophthalmic Artery, Central Retinal Artery, Short Posterior Ciliary Arteries. Results: IOP was significantly higher in injured eyes (15.1 vs 13.0±2.7mmHg) (P= 0,01), but only 2 eyes (8.8%) were under medical treatment POBF values were significantly lower in injured eyes: 11,25 μl/s in traumatised eyes and 15,40 μl/s in fellow eyes (P = 0.002). Resistivity Index (RI) of all investigated retrobulbar vessels was very significantly higher in injured eyes than in fellow eyes (P= 0.0001). There is no significant correlation between IOP and ocular blood flow disturbances.展开更多
目的探究超声血流参数[收缩期峰值血流速度(Vs)、舒张末期血流速度(Vd)、阻力指数(RI)]、D-二聚体手术前后变化及复合模型在创伤骨折患者下肢深静脉血栓形成(DVT)预警中的应用价值。方法选取2021年7月—2023年7月收治的创伤骨折200例,...目的探究超声血流参数[收缩期峰值血流速度(Vs)、舒张末期血流速度(Vd)、阻力指数(RI)]、D-二聚体手术前后变化及复合模型在创伤骨折患者下肢深静脉血栓形成(DVT)预警中的应用价值。方法选取2021年7月—2023年7月收治的创伤骨折200例,根据术后是否发生下肢DVT分为发生组25例与未发生组175例。收集2组基线资料及手术前后Vs、Vd、RI、D-二聚体数据,根据创伤骨折患者术后下肢DVT发生影响因素构建预测复合模型,评估Vs、Vd、RI、D-二聚体手术前后差值联合及复合模型对创伤骨折患者术后下肢DVT发生的预测价值。绘制决策曲线分析(DCA),分析超声血流参数、D-二聚体与复合模型预测创伤骨折患者术后下肢DVT发生的获益情况。结果发生组手术时间长于未发生组,术中使用止血带比例高于未发生组(P<0.01);发生组术后3 d Vs、Vd低于未发生组,RI、D-二聚体高于未发生组(P<0.01);发生组Vs、Vd、RI及D-二聚体手术前后差值均大于未发生组(P<0.01);多因素Logistic回归分析显示,手术时间、术中使用止血带及Vs、Vd、RI、D-二聚体手术前后差值为创伤骨折患者术后下肢DVT发生的独立危险因素(P<0.01);以Vs、Vd、RI、D-二聚体手术前后差值联合预测下肢DVT的曲线下面积(AUC)为0.882(95%CI:0.829,0.923),敏感度、特异度均为0.88。构建下肢DVT预测模型,其AUC为0.920(95%CI:0.873,0.954);DCA显示,复合模型在阈值概率为0.10~0.90时具有更高的临床价值。结论手术时间、术中使用止血带及Vs、Vd、RI、D-二聚体手术前后差值为创伤骨折患者术后下肢DVT发生的独立危险因素;与Vs、Vd、RI、D-二聚体手术前后差值相比,多指标联合建立的复合模型在创伤骨折术后下肢DVT早期预警中应用价值更高。展开更多
目的探讨三维能量多普勒超声(three-dimensional power Doppler ultrasound,3D-PDUS)对胎儿生长受限(fetal growth restriction,FGR)的诊断价值。方法选取2021年9月至2023年12月于温州市人民医院产检并分娩的孕晚期孕妇120例为研究对象...目的探讨三维能量多普勒超声(three-dimensional power Doppler ultrasound,3D-PDUS)对胎儿生长受限(fetal growth restriction,FGR)的诊断价值。方法选取2021年9月至2023年12月于温州市人民医院产检并分娩的孕晚期孕妇120例为研究对象,经临床和超声证实的FGR孕妇50例纳入病例组,胎儿宫内发育正常的孕妇70例纳入对照组,比较两组胎儿的肾脏容积和肾脏血流参数,比较两组孕妇的妊娠结局和围产期情况。绘制受试者操作特征曲线(receiver operating characteristic curve,ROC曲线)并计算曲线下面积(area under the curve,AUC),评价各血流参数对FGR的诊断效能。结果病例组胎儿的肾脏体积/孕周、肾脏血管化指数、血管化-血流指数、肾动脉收缩期峰值流速均显著低于对照组,肾动脉收缩期峰值流速/舒张末期血流速度比值、搏动指数、阻力指数均显著高于对照组(P<0.05);两组胎儿的肾脏血流指数比较差异无统计学意义(P>0.05)。ROC曲线结果显示,肾脏体积/孕周和肾动脉收缩期峰值流速的诊断效能较高,而联合应用的诊断效能最高,AUC为0.89。病例组的低出生体重儿发生率显著高于对照组,新生儿Apgar评分显著低于对照组(P<0.01)。结论使用3D-PDUS定量分析参数评估肾脏容积和血液灌注情况可预测FGR,有利于早期诊断FGR并指导临床干预,有效减少不良妊娠结局。展开更多
文摘Objective:To study the relationship between perifollicular blood flow and follicule development, oocyte maturing rate, fertilizing rate, cleaving rate, embryo quality and the outcomes of embryo transfer. Methods: The samples were selected from 66 suffers who underwent in vitro fertilization(IVF)or intracytoplasmic sperm injection(ICSl). Eeach patients' perifollicular blood flow(diameter ≥ 12mm )was estimated on the day of human chorionic gonadotropin(HCG)administration. Results:Among 66 cycles, 26(39.4%) cycles resulted in pregnancy, perifollicular blood flow resistance index(Rl), peak systolic velocity/end diastasis velocity(S/D) of non-pregnant group was significantly higher than that of the pregnant group (P 〈 0.004). When RI 〈 0.49, the pregnancy rates, fecundation rates, fertilization rates, metaphase numbers for the of second meiosis oocytes increased evidently (P 〈 0.05), but there were no statistical difference in gonadotropin dosage, cycle frequency, infertility years, ages, estradiol(E2)on the day of HCG administration, numbers of oocyet retrieved and high-quality embryo rates (P 〉 0.05 ). There were no statistical difference between non-pregnant group and pregnant group in S and D (P 〉 0.05 ). There was no correlation between periFollicular blood flow RI and follicular diameter by linear regression analysis. Conclusion:Our study shows that perifollicular blood flow RI and S/D are effective indices of predicting the pregnancy outcome of IVF-ET.
文摘Purpose: To assess if injured eyes develop ocular blood flow disturbances that may contribute to development of traumatic glaucoma. Materials and Methods: 25 patients hospitalized for eye injury and elevated IOP were evaluated 24 months after the trauma. All injured and fellow eyes underwent IOP measure, visual field (HFAII, Central 30/2SITA), pulsatile ocular blood flow analysis (POBF, OBF Labs UK), CDI examination (PSV, EDV, and RI) of Ophthalmic Artery, Central Retinal Artery, Short Posterior Ciliary Arteries. Results: IOP was significantly higher in injured eyes (15.1 vs 13.0±2.7mmHg) (P= 0,01), but only 2 eyes (8.8%) were under medical treatment POBF values were significantly lower in injured eyes: 11,25 μl/s in traumatised eyes and 15,40 μl/s in fellow eyes (P = 0.002). Resistivity Index (RI) of all investigated retrobulbar vessels was very significantly higher in injured eyes than in fellow eyes (P= 0.0001). There is no significant correlation between IOP and ocular blood flow disturbances.
文摘目的探究超声血流参数[收缩期峰值血流速度(Vs)、舒张末期血流速度(Vd)、阻力指数(RI)]、D-二聚体手术前后变化及复合模型在创伤骨折患者下肢深静脉血栓形成(DVT)预警中的应用价值。方法选取2021年7月—2023年7月收治的创伤骨折200例,根据术后是否发生下肢DVT分为发生组25例与未发生组175例。收集2组基线资料及手术前后Vs、Vd、RI、D-二聚体数据,根据创伤骨折患者术后下肢DVT发生影响因素构建预测复合模型,评估Vs、Vd、RI、D-二聚体手术前后差值联合及复合模型对创伤骨折患者术后下肢DVT发生的预测价值。绘制决策曲线分析(DCA),分析超声血流参数、D-二聚体与复合模型预测创伤骨折患者术后下肢DVT发生的获益情况。结果发生组手术时间长于未发生组,术中使用止血带比例高于未发生组(P<0.01);发生组术后3 d Vs、Vd低于未发生组,RI、D-二聚体高于未发生组(P<0.01);发生组Vs、Vd、RI及D-二聚体手术前后差值均大于未发生组(P<0.01);多因素Logistic回归分析显示,手术时间、术中使用止血带及Vs、Vd、RI、D-二聚体手术前后差值为创伤骨折患者术后下肢DVT发生的独立危险因素(P<0.01);以Vs、Vd、RI、D-二聚体手术前后差值联合预测下肢DVT的曲线下面积(AUC)为0.882(95%CI:0.829,0.923),敏感度、特异度均为0.88。构建下肢DVT预测模型,其AUC为0.920(95%CI:0.873,0.954);DCA显示,复合模型在阈值概率为0.10~0.90时具有更高的临床价值。结论手术时间、术中使用止血带及Vs、Vd、RI、D-二聚体手术前后差值为创伤骨折患者术后下肢DVT发生的独立危险因素;与Vs、Vd、RI、D-二聚体手术前后差值相比,多指标联合建立的复合模型在创伤骨折术后下肢DVT早期预警中应用价值更高。
文摘目的探讨三维能量多普勒超声(three-dimensional power Doppler ultrasound,3D-PDUS)对胎儿生长受限(fetal growth restriction,FGR)的诊断价值。方法选取2021年9月至2023年12月于温州市人民医院产检并分娩的孕晚期孕妇120例为研究对象,经临床和超声证实的FGR孕妇50例纳入病例组,胎儿宫内发育正常的孕妇70例纳入对照组,比较两组胎儿的肾脏容积和肾脏血流参数,比较两组孕妇的妊娠结局和围产期情况。绘制受试者操作特征曲线(receiver operating characteristic curve,ROC曲线)并计算曲线下面积(area under the curve,AUC),评价各血流参数对FGR的诊断效能。结果病例组胎儿的肾脏体积/孕周、肾脏血管化指数、血管化-血流指数、肾动脉收缩期峰值流速均显著低于对照组,肾动脉收缩期峰值流速/舒张末期血流速度比值、搏动指数、阻力指数均显著高于对照组(P<0.05);两组胎儿的肾脏血流指数比较差异无统计学意义(P>0.05)。ROC曲线结果显示,肾脏体积/孕周和肾动脉收缩期峰值流速的诊断效能较高,而联合应用的诊断效能最高,AUC为0.89。病例组的低出生体重儿发生率显著高于对照组,新生儿Apgar评分显著低于对照组(P<0.01)。结论使用3D-PDUS定量分析参数评估肾脏容积和血液灌注情况可预测FGR,有利于早期诊断FGR并指导临床干预,有效减少不良妊娠结局。