Assessment of Uterine Receptivity by Endometrial and Subendometrial Blood Flows Measured by Vaginal Color Doppler Ultrasound in Women Undergoing IVF Treatment

Objective To evaluate endometrial and subendometrial blood flows measured by vaginal color Doppler ultrasound as a predicator of endometrial receptivity in women undergoing IVF treatment. Methods A total of 119 infertile patients undergoing the first IVF/ICSI-ET cycle were recruited. Three groups were divided according to a color Doppler ultrasound examination performed on the day of hCG injection. Group A, endometrial and subendometrial blood flows were 2 branches and below; group B, endometrial and subendometrial blood flows were between 3 and 4 branches; group C, endometrial and subendometrial blood flows were 5 branches and above. Patients were transferred 1-3 embryos each. Demographic data, ovarian responses, endometrial thickness, PI, RI, development of embryo and IVF result among groups were compared. Results Demographic data, ovarian responses, endometrial thickness, PI, RI and development of embryo among groups have no significant difference. The pregnancy rate of group A was significantly lower than that of group B （P〈0.05） and group C （P〈0.01）. The implantation rate of group A was significantly lower than than of group C （P〈0.01）. There was no significant difference of the rate of pregnancy and implantation between group B and group C （P〉0.05）. Conclusion Endometrial and subendometrial blood flows measured by vaginal color Doppler ultrasound is a good predicator of pregnancy during IVF treatment. A good endometrial and subendometrial blood flows is benefit for the result of IVF.

Assessment of voluntary rhythmic muscle contraction-induced exercising blood flow variability measured by Doppler ultrasound

Given recent technological developments, ultrasound Doppler can provide valuable measurements of blood velocity/flow in the conduit artery with high temporal resolution. In human-applied science such as exercise physiology, hemodynamic measurements in the conduit artery is commonly performed by blood flow feeding the exercising muscle, as the increase in oxygen uptake (calculated as a product of arterial blood flow to the exercising limb and the arterio-venous oxygen difference) is directly proportional to the work performed. The increased oxygen demand with physical activity is met through a central mechanism, an increase in cardiac output and blood pressure, as well as a peripheral mechanism, an increase in vascular conductance and oxygen extraction (a major part of the whole exercising muscles) from the blood. The increase in exercising muscle blood flow in relation to the target workload (quantitative response) may be one indicator in circulatory adjustment for the ac- tivity of muscle metabolism. Therefore, the determination of local blood flow dynamics (potential oxygen supply) feeding repeated (rhythmic) muscle contractions can contribute to the understanding of the factors limiting work capacity including, for instance, muscle metabolism, substance utilization and magnitude of vasodilatation in the exercising muscle. Using non-invasive measures of pulsed Doppler ultrasound, the validity of blood velocity/flow in the forearm or lower limb conduit artery feeding to the muscle has been previously demonstrated during rhythmic muscle exercise. For the evaluation of exercising blood flow, not only muscle contraction induced internal physiological variability, or fluctuations in the magnitude of blood velocity due to spontaneous muscle contraction and relaxation induced changes in force curve intensity, superimposed in cardiac beat-by-beat, but also the alterations in the blood velocity (external variability) due to a temporary sudden change in the achieved workload, compared to the target workload, should be considered. Furthermore, a small amount of inconsistency in the voluntary muscle contraction force at each kick seems to be unavoidable, and may influence exercising muscle blood flow, although subjects attempt to perform precisely similar repeated voluntary muscle contractions at target workload (muscle contraction force). This review presents the methodological considerations for the variability of exercising blood velocity/flow in the limb conduit artery during dynamic leg exercise assessed by pulsed Doppler ultrasound in relation to data previously reported in original research.

Measurement of Liver Size and Intrahepatic Blood Flow of Red-eared Turtles by Color Doppler Ultrasound

In the study, a total of 20 red-eared turtles （ half male and half female） were selected to conduct the measurement of liver size and intrahepatic blood flow of red-eared turtles by color Doppler ultrasound. The results showed that the fight hepatic lobe could be scanned through the right carotid anterior acoustic win- dow, and the left hepatic lobe could be scanned through the left carotid anterior acoustic window, but the vision would be obstructed by the air in trachea. The liver could also be scanned through the left femoral anterior acoustic window and the fight femoral anterior acoustic window when filling of bladder was good. The correla- tion regression analysis suggested that estimated values of liver showed no linear relationship with weight, the longest back curve and the widest back curve. Through the study, the normal indicators for ultrasound examination of red-eared turtle liver were established, in order to provide a reference for examination of turtle liver.

Measurement of the exercising blood flow during rhythmical muscle contractions assessed by Doppler ultrasound:Methodological considerations

Given the recent technological developments, ultra-sound Doppler can provide valuable measurements of arterial blood flow with high temporal resolution. In a clinical setting, measurements of hemodynamics is used to monitor, diagnose and manage changes in blood velocity profile for cardiac valve disease, relatively large vessel stenosis and other cardiovascular diseases. In health science and preventive medicine for cardiovascular disease with exercise therapy, evaluation of cardiac and vascular function is a useful indicator not only at rest but also during exercise, leading to improved exercise tolerance as well as physical activity. During exercise, the increase in oxygen uptake (calculated as product of arterial blood flow to the exercising limb and the arteriovenous oxygen difference) is directly proportional to the work performed. The increased oxygen demand is met through a central mechanism, an increase in cardiac output and blood pressure, as well as a peripheral mechanism, an increase in vascular conductance and oxygen extraction (major part in the whole exercising muscles) from the blood. Therefore, the determination of the local blood flow dynamics (potential oxygen supply) feeding to rhythmic muscle contractions can contribute to the understanding of the factors limiting the work capacity including, for instance the muscle metabolism, substance utilization and vasodilatation in the exercising muscle. Using non-invasive measures of pulsed Doppler ultrasound the validity of evaluating blood velocity/flow in the fore- arm or lower limb conduit artery feeding to the mus- cle is demonstrated during rhythmic muscle exercise;however the exercising blood velocity profile (fast Fourier transformation) due to muscle contractions is always seen as a physiological variability or fluctuations in the magnitude in blood velocity due to the spontaneous muscle contraction and relaxation induced changes in force curve intensity. Considering the above mentioned variation in blood velocity in relation to muscle contractions may provide valuable information for evaluating the blood flow dynamics during exercise. This review presents the methodological concept that underlines the methodological considerations for determining the exercising blood velocity/flow in the limb conduit artery in relation the exercise model of dynamic leg exercise assessed by pulsed Doppler ultrasonography.

Measurements Of Cerebral Blood Flow in Postasphyxiated Newborns by Color Doppler Imaging（CDI）

Cerebral blood flow of 10 asphyxiated term newborns was continuously measured during the first 7 days of life and compared with that of 10 normal term infants by CDI. Frequency spectrum and blood flow variables in the anterior, middle and posterior cerebral arteries were studied. The results showed evidently lower systolic amplitude in patients than that in normal subjects. End diastolic amplitude was zero in part of vessels, and values of bloed flow variables were all lower in day 1 of the life as compared with the control groups. Frequency spectrum recovered to normal patterns in 9 survived infants in day 2. but blood flow variables recovered to normal by day 7. Values of resistance index (RI) rose to 1 in some vessels of moderate hypoxic ischemic encephalopathy (HIE) infants and stayed at 1 in the severe HIE infants. It is concluded that low CBF plays a key role in brain damage of post-asphyxiated newborns and RI may be an important parameter in the evaluation prognosis.

Antidiastole Value of Three-dimensional Ultrasonography and Power Doppler between Uterine Parenchyma Lumps and Endometrial Cancer:A Retrospective Study

Sometimes endometrial polyps,submucosal myomas,and endometrial cancer show similar findings under ultrasonography.The aim of this study was to assess the antidiastole value of blood flow parameters using three-dimensional(3D)power Doppler ultrasonography angiography(PDA)between endometrial cancer and uterine parenchyma lumps.The data of the blood flow indices in 3D-PDA including the vascularization index(VI),flow index(FI),and vascularization flow index(VFI)in 40 patients with endometrial cancer and 41 patients with uterine parenchyma lumps(endometrial polyps and submucosal myomas)were retrospectively analysed and compared utilizing Virtual Organ Computer-aided AnaLysis(VOCAL)software.The results showed that all the blood flow parameters(VI,FI,VFI)were significantly higher in women with endometrial cancer than in those with uterine parenchyma lumps(P<0.001).The area under the curve of ROC of VI,FI,and VFI was 0.98,0.84,and 0.97,respectively.Thus,the best predictor of endometrial carcinoma was VI with a sensitivity of 97.0% and a specificity of 91.0%.The optimal cutoff value of VI was 4.06%.Our data demonstrated that all of the blood flow signal parameters(including VI,FI,and VFI)in 3D power Doppler ultrasonography had significant antidiastole values between endometrial cancer and uterine parenchyma lumps to assist clinicians in properly diagnosing patients.

Voluntary Thigh Muscle Strength with Resection Stump-Dependent Blood Flow and Vasodilation in an Amputated Lower Leg with Total Surface Bearing Prosthesis during Dynamic Knee Extensor: A Case Trial

Background: The magnitude of the hyperemic response due to repeated thigh stump exercise on incremental contraction intensity might be useful information in localized exercise tolerance for devising cardiovascular physical therapy for amputees. The effect of exercise on amputated leg blood flow (LBF) may potentially be altered due to voluntary muscle contractions after loss of the lower leg compared with the healthy leg. Case Presentation: A 57-year-old male patient with Burger disease attempted 3 min unilateral repeat/dynamic knee extensor exercise at a target muscle contraction frequency (1 s thigh muscle contraction and 1 s relaxation, 90 repetitions) with each leg <right transtibial amputated leg (AL) using a total surface-bearing prosthesis (TSB) and left non-AL> at six different contraction intensities (rubber resistance belt). Simultaneous measurement of blood velocity/flow (Doppler ultrasound) in the femoral artery, blood pressure, leg vascular conductance (LVC), and peak muscle strength (PMS) were performed during the 3 min exercise period. The maximum voluntary contraction by one-legged isometric knee muscle contraction was 14.7 kg in non-AL and 7.9 kg in the AL with prosthesis. The relative PMS was defined as “PMS/maximum voluntary contraction × 100 (%)”. Pre-exercise LBF was lower in the AL (200 ± 25 ml/min) than the non-AL (275 ± 74 ml/min). Both the non-AL and AL showed good positive linear relationships between absolute-/relative-PMS and LBF or LVC during 30 s at steady-state before the end of the exercise period. Furthermore, there was also similarity seen in the increase rate in LBF and/or LVC for the incremental relative PMS compared with the absolute PMS. Conclusion: In this case, the muscle strength depended on blood flow increase/vasodilation was seen in this “AL” using a TSB prosthesis for repeated dynamic knee extensor exercise. The present amputee’s limb muscle strengthening with the resection stump closely related to the degree of hyperemia in the amputated limb.

经阴道彩色多普勒超声在子宫内膜病变患者中的应用价值

目的分析经阴道彩色多普勒超声在子宫内膜病变患者中的应用价值。方法选取2021年2月至2022年4月南昌大学第四附属医院收治的88例子宫内膜病变患者作为研究对象,所有患者均接受经阴道彩色多普勒超声及病理学检查,按照病理学检查结果将患者分为息肉组与癌变组,每组44例。比较两组二维超声子宫内膜情况、病灶血流动力学情况、经阴道彩色多普勒超声血流相关参数;以病理学检查结果为金标准,分析经阴道彩色多普勒超声对子宫内膜癌变的诊断效能。结果癌变组子宫内膜厚度厚于息肉组,内膜-肌层分界清晰、病灶回声均匀占比均低于息肉组,差异有统计学意义(P<0.05);癌变组血流丰富占比高于息肉组,差异有统计学意义(P<0.05);癌变组血流阻力指数(RI)、搏动指数(PI)均低于息肉组,时间平均峰值流速(TAP)慢于息肉组,差异有统计学意义(P<0.05);经阴道彩色多普勒超声对子宫内膜癌变的诊断灵敏度为86.36%,特异度为84.09%,准确度为85.23%;诊断息肉的灵敏度为84.09%,特异度为86.36%,准确度为85.23%。结论经阴道彩色多普勒超声对子宫内膜病变的诊断准确率较高,能通过血流动力学、RI、PI、TAP及影像学表现鉴别息肉或癌变。

基于彩色多普勒超声分析胎儿脐血流对FGR的诊断价值

目的:探讨彩色多普勒超声胎儿脐血流参数对FGR的诊断价值。方法:回顾性选取2019年12月~2021年12月收治的100例FGR孕妇(研究组)及100例正常孕妇(对照组),均接受超声检测。分析胎儿超声脐血流参数与FGR的关系,Logistic回归分析FGR发生的影响因素。ROC曲线分析胎儿脐血流参数对FGR的诊断价值。结果:Logistic分析显示年龄、羊水过少、低蛋白血症、RI,PI,S/D均是FGR发病的影响因素。ROC分析显示S/D、RI、PI对FGR诊断价值高。结论:FGR胎儿彩色多普勒RI,PI,S/D异常升高,具有良好诊断价值。

二维斑点追踪技术在评估冠心病患者左心室收缩与舒张功能中的应用价值

目的探讨二维斑点追踪技术在评估老年冠心病患者左心室收缩与舒张功能中的应用价值。方法对60例老年冠心病患者(研究组)和60名健康老年人(对照组),应用彩色多普勒超声诊断仪进行左心室功能检查。比较两组血压、生化指标(三酰甘油、高密度脂蛋白胆固醇、低密度脂蛋白胆固醇、总胆固醇、糖化血红蛋白)及常规超声参数、二维斑点超声应变参数、血流频谱测量超声参数。结果研究组受试者收缩压、舒张压及三酰甘油、高密度脂蛋白胆固醇、低密度脂蛋白胆固醇、总胆固醇、糖化血红蛋白水平均高于对照组(P<0.01)。两组受试者收缩末期和舒张末期的左室内径、室间隔壁厚度、左室前/后/下壁厚度比较,差异无统计学意义(P>0.05)。研究组受试者左室舒张充盈末流速峰值/左室收缩末流速峰值低于对照组(P<0.05);两组受试者左室射血分数、左室舒张充盈末流速峰值、左室收缩末流速峰值比较,差异无统计学意义(P>0.05)。研究组受试者舒张期和收缩期的左心室前壁、后壁、下壁、室间隔的纵向、径向、周向峰值绝对值均低于对照组(P<0.01)。结论二维斑点追踪技术的抗干扰能力较强,二维斑点超声应变参数能有效反映冠心病患者左室收缩、舒张情况,具有较高的应用价值。

床旁经颅多普勒超声在神经重症脑血管疾病患者中的监测价值

目的分析神经重症脑血管疾病患者监测中床旁经颅多普勒超声应用效果。方法筛选郑州人民医院2021年5月至2023年5月86例重症脑血管疾病患者作为研究对象(高血压脑出血,术后35例,未手术者7例,脑动脉瘤破裂出血,术后32例,未手术者5例,其他脑血管疾病术后4例,未手术者3例),均采用经颅多普勒超声(TCD)监测,包含经枕窗探测基底动脉(BA)、经颞窗探测双侧大脑中动脉(MCA),另监测收缩期峰值血流动力学改变、舒张末期峰值血流速度、平均峰值血流速度、血管阻力指数、血管搏动指数、血流频谱形态等了解血流动力学改变,了解血流动力学改变,依照监测结果分三组,脑血管痉挛组(n=26)、供血不足组(n=37)、血流增快组(n=29),对各组监测结果予以分析。结果患者均完成TCD监测,在不同病因中,脑动脉瘤破裂出血与高血压脑出血患者供血不足发生率最高,其次是血流增快、血管痉挛,三组发生率对比差异有统计学意义(P<0.05)。结论在神经重症脑血管疾病患者中,床旁TCD监测能为临床治疗及预后评价提供有效支持。

子宫动脉血流多普勒超声联合血清PIGF、Vaspin、ESM-1诊断HDP价值

目的:探讨妊娠高血压疾病(HDP)患者子宫动脉血流多普勒超声、血清促血管生成因子(PIGF)、丝氨酸蛋白酶抑制剂(Vaspin)、内皮细胞特异分子-1(ESM-1)水平及其诊断价值。方法:回顾性收集2020年6月-2021年12月本院接诊的HDPL患者86例为病例组,产前检查健康孕妇75例为对照组,检测两组血清PIGF、Vaspin、ESM-1水平及子宫动脉血流参数,分析在诊断HDP价值。结果:病例组血清PIGF(271.56±45.56 pg/ml)低于对照组(330.15±50.35 pg/ml),Vaspin(0.46±0.04 ng/ml)、ESM-1(1.38±0.51μg/L)高于对照组(0.39±0.08 ng/ml、1.01±0.07μg/L),多普勒超声子宫动脉血流阻力指数(RI)(0.79±0.14)、搏动指数(PI)(0.83±0.21)、收缩期峰值流速与舒张末期血流速度比值(S/D)(2.26±0.74)均高于对照组(0.51±0.20、0.44±0.19、1.41±0.35),且病例组妊娠期高血压、轻度子痫前期、重度子痫前期患者上述各指标均有差异(均P<0.05)。受试者工作特征曲线分析,血清PIGF、Vaspin、ESM-1、RI、PI、S/D及各项联合,诊断HDP的曲线下面积分别为0.811、0.780、0.691、0.944、0.860、0.813、0.999,截断值分别为291.56 pg/ml、0.43 ng/ml、1.12μg/L、0.58、0.53、1.87,联合检测的特异度(96.5%)、准确度(93.4%)最高(均P<0.05)。结论:HDP患者血清PIGF、Vaspin、ESM-1、子宫动脉血流参数异常改变,且对HDP有较好诊断价值,本次研究也为靶向药物治疗HDP提供了新思路。

子宫动脉多普勒超声血流成像相关参数与妊娠期高血压产妇妊娠结局的关系

目的 探讨子宫动脉多普勒超声血流成像相关参数与妊娠期高血压产妇妊娠结局的关系。方法 选取80例妊娠期高血压产妇纳入病例组,80例健康产妇纳入健康组,比较两组的子宫动脉多普勒超声血流成像相关参数。比较病例组不同妊娠结局产妇的相关参数,分析不良妊娠结局的危险因素。结果 病例组的子宫动脉RI、 PI、 S/D均高于健康组(P <0.05)。病例组发生不良妊娠结局产妇的子宫动脉RI、 PI、 S/D均高于未发生产妇(P <0.05)。Logistic回归分析显示,子宫动脉RI、 PI、 S/D均为不良妊娠结局发生的独立危险因素(OR>1,P <0.05)。结论 妊娠期高血压产妇的子宫动脉RI、 PI、 S/D显著高于正常产妇,且子宫动脉RI、 PI、 S/D与不良妊娠结局有关,临床中可将多普勒超声检查用于病情诊断及不良妊娠结局风险预测。

子宫动脉血流多普勒超声检查联合血清胎盘生长因子、D-二聚体与孕中期子痫前期妊娠结局及新生儿预后的相关研究

目的 探讨子宫动脉血流多普勒超声检查联合血清胎盘生长因子(PIGF)和D-二聚体(D-D)与孕中期子痫前期孕妇妊娠结局及新生儿预后的相关性。方法 将2019年1月至2022年8月江阴市中医院(南京中医药大学江阴附属医院)就诊的89例孕中期先兆子痫孕妇纳入本次回顾性研究,设为先兆子痫组,另选择同时间段226例孕中期正常孕妇纳入对照组。比较各组孕20~26周子宫动脉血流参数[包括收缩期与舒张期流速比(S/D)、搏动指数(PI)和子宫动脉阻力指数(RI)],血清PIGF和D-D水平,Pearson相关性分析分析PIGF、D-D与S/D、PI和RI的相关性,比较不同母体结局及新生儿预后及子宫动脉血流参数、血清PIGF、D-D水平。结果 先兆子痫组S/D、PI和RI为3.35±0.26、2.21±0.12、0.84±0.21,均明显高于对照组(2.89±0.30、0.82±0.09、0.53±0.19),差异均有统计学意义(P<0.05)。先兆子痫组的血清PIGF为(13.41±0.59)μg/L,显著低于对照组[(42.35±2.21)μg/L],血清D-D为(598.05±79.51)μg/L,显著高于对照组[(264.19±45.96)μg/L],差异均有统计学意义(P<0.05)。Pearson相关性分析显示,PIGF与S/D、PI和RI呈负相关(r=-0.481、-0.509、0.489,P<0.05),而D-D与S/D、PI和RI呈正相关(r=0.422、0.447、0.438,P<0.05)。先兆子痫组新生儿出生孕周为(33.53±1.95)周,明显短于对照组[(38.97±2.27)周],出生体重及1 min Apgar评分分别为(2 324.10±413.77)g、(7.51±1.91)分,均明显低于对照组[(3 114.43±541.72)g、(9.50±1.83)分],差异均有统计学意义(P<0.05)。母体并发症发生率和新生儿不良预后发生率为68.54%(61/89)、47.19%(42/89)。母体并发症组的S/D、PI及RI、血清D-D水平均显著高于非母体并发症组,而血清PIGF水平显著低于非母体并发症组,差异均有统计学意义(P<0.05);新生儿预后不良组的的S/D、PI及RI、血清D-D水平显著高于预后良好组,而血清PIGF水平显著低于预后良好组,差异均有统计学意义(P<0.05)。结论 先兆子痫患者孕中期子宫动脉血流参数异常,血清PLGF、D-D表达异常,且先兆子痫患者新生儿预后差,孕中期子宫动脉血流参数、血清PLGF、D-D与先兆子痫患者母婴结局密切相关。

多普勒超声子宫动脉血流参数联合凝血相关指标对易栓症所致复发性流产妊娠结局的预测价值

目的:探讨多普勒超声子宫动脉血流参数联合凝血相关指标对易栓症所致复发性流产妊娠结局的预测价值。方法:选取2020年1月至2023年1月北京市海淀医院妇科门诊就诊的82例复发性流产患者,所有患者均进行相关治疗,并统计随访结果。所有患者于入院次日治疗前均进行子宫动脉搏动指数(PI)、阻力指数(RI)、收缩压最大血流速度(S)与舒张末期最大血流速度(D)比值(S/D),以及活化部分凝血活酶时间(APTT)、凝血酶原时间(PT)、纤维蛋白原(FIB)、凝血酶时间(TT)及D二聚体(D-D)检测。采用Pearson相关性分析PI、RI与S/D与APTT、PT、FIB、TT、D-D的相关性;采用受试者工作特征(ROC)曲线下面积(AUC)分析PI、RI、S/D、APTT、PT、FIB、TT及D-D单独检测及联合检测预测易栓症所致复发性流产妊娠结局的价值。结果:随访结果显示,82例复发性流产患者妊娠成功49例,妊娠丢失33例,妊娠成功孕妇的PI、RI与S/D均明显低于妊娠丢失孕妇,差异有统计学意义(t=10.598、6.693、3.059,P<0.05);APTT、PT、FIB、TT、D-D水平均明显低于妊娠丢失孕妇,差异有统计学意义(t=9.552、96.462、22.767、5.100、95.805,P<0.05);PI与APTT、PT、FIB、TT及D-D均存在正相关性(r=3.178,P<0.05),RI与APTT、PT、FIB、D-D均存在正相关性(r=3.246,P<0.05),S/D与PT、FIB、TT、D-D均存在正相关性(r=3.246,P<0.05);PI、RI、S/D、APTT、PT、FIB、TT及D-D单独检测及联合检测预测易栓症所致复发性流产妊娠结局灵敏度分别为42.40%、48.50%、39.40%、48.50%、63.60%、72.70%、42.40%、39.40%、84.80%,特异性分别为98.00%、71.40%、55.10%、75.50%、59.20%、71.40%、77.60%、85.70%、98.80%,AUC分别为0.674、0.685、0.409、0.646、0.784、0.788、0.566、0.563和0.941。结论:PI、RI及S/D子宫动脉血流参数与APTT、PT、FIB、TT和D-D凝血相关指标单独及联合检测预测易栓症所致复发性流产妊娠结局均具有一定的价值,且联合检测的预测价值更高。

三维多普勒超声在子痫前期孕妇胎盘血管形成监测中的应用价值

目的探讨三维多普勒超声在子痫前期孕妇胎盘血管形成监测中的应用价值。方法选取2020年1月至2022年5月抚州市第一人民医院收治的孕11~16+6周子痫前期孕妇30例作为观察组,另选取同期于本院建档产检的30名同孕期健康孕妇作为对照组。所有孕妇均接受三维多普勒超声检查,分析孕妇胎盘血管指数(VI)、血流指数(FI)、血管血流综合指数(VFI)、胎盘体积(PV)和子宫动脉搏动指数(PI)及围生儿不良预后发生率。结果观察组VI、FI、VFI均低于对照组,PV小于对照组,PI高于对照组,差异有统计学意义(P<0.05);观察组羊水过少、胎盘早剥、胎儿生长受限、胎儿窒息、低体质量儿发生率均高于对照组,差异有统计学意义(P<0.05)。结论三维多普勒超声可通过孕妇胎盘VI、FI、VFI、PV和PI等指标评估子痫前期情况,可作为子痫前期首选诊断手段。

各期内痔动脉血供特性的临床研究

目的研究各期内痔动脉血供特点。方法采用经会阴多普勒超声分别对80例不同分度内痔患者(观察组)和20例志愿者(对照组)的痔供血动脉的血流量、管径大小进行检测。结果通过经会阴彩色多普勒超声手段,80例Goligher分度Ⅰ~Ⅳ度痔疮患者与20名健康志愿者进行比较。观察组痔疮动脉供血分支的平均管径为1.90±0.85 mm;明显大于对照组0.97±0.24 mm,差异有统计学意义(P<0.001)。观察组痔疮供血动脉血流47.3±28.3 cm/s明显高于对照组15.6±5.0 cm/s,两组间差异具有统计学意义(P<0.01)。结论痔疮供血动脉管径和血流与内痔病情程度呈正相关。经会阴彩色多普勒超声有望成为内痔患者合理选择治疗方式的一种检测手段。

彩色多普勒超声血流参数在卵巢癌侵袭中的诊断价值

目的探讨彩色多普勒超声血流参数评估卵巢癌周围血管侵袭的价值。方法82例卵巢癌患者均行彩色多普勒超声检查,测量动脉血管血流参数。观察周围血管侵袭情况,比较侵袭与未侵袭患者的血流参数,分析血流参数诊断血管侵袭的价值。结果侵袭组的EDV、PSV高于未侵袭组,PI、RI低于未侵袭组(P<0.05)。联合检测诊断周围血管侵袭的AUC高于EDV、PSV、PI、RI单项检测(P<0.05)。结论彩色多普勒超声血流参数诊断卵巢癌周围血管侵袭的价值较高,联合检测可提高诊断效能。

多普勒超声血流参数及血清脑钠肽、胰岛素生长因子-1水平与子痫前期病情及预后的相关性分析

目的:探索多普勒超声血流参数及血清脑钠肽(BNP)、胰岛素生长因子-1(IGF-1)水平与子痫前期(PE)病情及预后的相关性。方法:回顾性分析2019年2月至2021年5月万宁市人民医院收集的162例孕妇临床资料,将其中80例正常妊娠孕妇纳入健康对照组,82例PE孕妇纳入观察组。均进行血清BNP、IGF-1以及超声检测,根据受试者工作特征(ROC)曲线下面积(AUC),分析血流阻力指数(RI)、血管指数(VI)、肾脏血流指数(FI)、IGF-1及BNP诊断效能。采用相关性分析血流参数、血清指标与预后相关性。结果:观察组BNP为(90.61±41.71)pg/ml高于健康对照组,差异有统计学意义(t=12.334,P<0.05),VI为(17.35±4.86)%、FI为(34.29±5.55)、IGF-1为(110.35±33.36)g/L,均低于健康对照组,差异有统计学意义(t=7.483、10.163、15.147,P<0.05)。观察组中轻度PE为48例,重度PE为34例,重度PE的BNP为(121.46±37.75)pg/ml高于轻度PE,VI为(13.94±0.24)%、FI为(30.47±3.23)、IGF-1为(89.86±24.17)g/L均低于轻度PE,经Spearman法分析,病情严重程度和预后与VI、FI、IGF-1呈负相关性,与BNP呈正相关性。ROC曲线分析显示,RI、VI、FI、IGF-1、BNP及5项联合诊断重度PE的AUC值分别为0.500、0.888、0.873、0.772、0.862、0.983。观察组中预后良好67例,预后不良15例,预后不良BNP为(87.56±16.35)pg/ml,高于预后良好,差异有统计学意义(t=15.804,P<0.05),VI为(18.60±4.70)%、FI为(33.40±3.56)、IGF-1为(112.35±35.22)g/L,均低于预后良好,差异有统计学意义(t=2.574、5.362、8.750,P<0.05)。结论:血清BNP、IGF-1水平以及多普勒超声血流参数与子痫前期病情、预后存在一定相关性,可为后续治疗、预后提供客观依据。

阴道彩色多普勒超声血流显像对子宫肌瘤检查的图像特征及诊断效能分析

目的:探讨阴道彩色多普勒超声血流显像(CDFI)对子宫肌瘤的诊断效能及其图像特征.方法:选取 2020年1 月至 2022 年 12 月本院收治的 53 例子宫肌瘤患者为研究对象,纳入观察组.选取同期本院收治的 51 例子宫肉瘤患者作为对照,纳入对照组.比较两组经阴道CDFI检查的图像特征、瘤体内部血流信号,CDFI检查对两组患者的诊断效能.结果:观察组CDFI图像呈低回声、瘤体边界清楚、肌瘤内部实性患者,瘤体内部无血流信号、少量血流信号患者占比均大于对照组;瘤体边界欠清楚、肌瘤内部囊性患者、瘤体内部血流信号丰富患者占比,均小于对照组,差异均有统计学意义(P<0.05).阴道CDFI检查诊断子宫肌瘤和子宫肉瘤的特异度、灵敏度、准确率、阳性预测值、阴性预测值分别为 98.03%、96.22%、97.11%、98.07%、96.15%.结论:采取阴道CDFI检查对子宫肌瘤诊断具有较高诊断效能,可清楚显示子宫肌瘤患者图像特征.