Fetal Diseases

胎儿疾病
  • 文章类型: Journal Article
    胎儿心脏病的产前诊断可能会影响父母终止妊娠的决策。现有文献表明,严重性,无论是复杂性还是杀伤力,显著影响父母关于堕胎的决定。然而,关于胎儿心脏病严重程度如何影响父母决定的问题仍然存在,鉴于近期在术后结局方面的进展。因此,我们调查了胎儿心脏病产前诊断后与父母决定流产相关的危险因素.我们的分析包括妊娠22周前诊断为胎儿心脏病的73例(终止:n=37;续:n=36)妊娠。诊断时胎龄的增加降低了父母决定终止妊娠的可能性(模型1:调整后的比值比,0.94;95%置信区间0.89-0.99;模型2:0.950.90-0.997)。危重病(5.25;1.09-25.19)和并发心外或遗传异常(模型1:4.19,1.21-14.53;模型2:5.47,1.50-19.96)增加了选择流产的可能性。值得注意的是,复杂疾病对父母决定没有显著影响(0.56;0.14-2.20).这些结果表明,父母关于流产的决策可能会受到诊断时早期胎龄的影响。心脏病的致命性,心外或遗传异常,但如果产前诊断和父母咨询是在心血管专业机构提供的,则不是其复杂性。
    The prenatal diagnosis of fetal heart disease potentially influences parental decision-making regarding pregnancy termination. Existing literature indicates that the severity, whether in complexity or lethality, significantly influences parental decisions concerning abortion. However, questions remain as to how fetal heart disease severity impacts parental decisions, given recent advancements in postsurgical outcomes. Therefore, we investigated risk factors associated with parents\' decision-making regarding abortion following a prenatal diagnosis of fetal heart disease. Our analysis included 73 (terminated: n = 37; continued: n = 36) pregnancies with a fetal heart disease diagnosed before 22 weeks of gestation. Increased gestational age at diagnosis reduced the likelihood of parents\' decision on termination (Model 1: adjusted odds ratio, 0.94; 95% confidence interval 0.89-0.99; Model 2: 0.95 0.90-0.997). Critical disease (5.25; 1.09-25.19) and concurrent extracardiac or genetic abnormalities (Model 1: 4.19, 1.21-14.53; Model 2: 5.47, 1.50-19.96) increased the likelihood of choosing abortion. Notably, complex disease did not significantly influence parental decisions (0.56; 0.14-2.20). These results suggest that parental decision-making regarding abortion may be influenced by earlier gestational age at diagnosis, the lethality of heart disease, and extracardiac or genetic abnormalities, but not its complexity if prenatal diagnosis and parental counseling are provided at a cardiovascular-specialized facility.
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  • 文章类型: English Abstract
    这项研究的目的是探讨产前磁共振成像(MRI)在评估胎儿先天性囊性肺病中的实用价值,评估病变的相对大小和肺发育状况,并尝试在后处理中利用MRI的强度来获得病变大小和肺部发育状况的评估指标,可以预测这些胎儿出生后可能面临的预后。我们回顾性收集并分析了诊断为先天性囊性肺病的胎儿数据。这些胎儿的产前超声检查导致诊断他们怀疑患有先天性囊性肺病,并且随后的产前MRI证实了诊断。对胎儿进行随访以跟踪其出生时的状况(产后呼吸窘迫,机械通气,等。),胎儿是否接受了手术治疗,以及手术治疗后胎儿的恢复。随访胎儿的恢复情况,探讨产前MRI检查评估胎儿先天性肺囊性疾病的可行性,初步探讨产前MRI对先天性肺囊性疾病胎儿预后的预测价值。
    MRI胎儿图像收集自2018年5月至2023年3月在四川大学华西第二医院就诊的孕妇,通过产前超声和随后的MRI诊断为胎儿先天性肺囊性疾病。对先天性囊性肺病胎儿MRI图像进行后处理,获得胎儿肺部病变体积,胎儿受累的肺容积,健康的肺容量,和胎儿头围测量。肺和肝脏的信号强度,病变体积/受影响的肺体积,病变体积/总肺体积,囊性体积比(CVR),并测量双侧肺-肝信号强度比。结合胎儿出生后6个月的随访结果,进一步分析MRI后处理采集指标对先天性囊性肺病胎儿预后评估的可行性和价值。采用Logistic回归模型对产妇年龄、MRI时的孕周,CVR,和双侧肺-肝信号强度比,并评估这些指标是否与不良预后相关。受试者工作特征(ROC)曲线用于评估单独通过MRI计算获得的参数以及与预测出生后不良预后的多种指标相结合的参数的价值。
    我们收集了2018年5月至2023年3月间通过胎儿MRI诊断为先天性囊性肺病的胎儿共67例,并排除了6例受影响肺部无正常肺组织的病例,11例胎儿诱导,3例失孕。最后,纳入47例先天性囊性肺病胎儿,其中30例预后良好,17例预后不良。预后良好组与预后不良组胎儿患侧和健侧肺、肝的信号强度比值差异有统计学意义(P<0.05),健康侧肺和肝脏的信号强度比高于患侧肺和肝脏的信号强度比。进一步分析表明,CVR(比值比[OR]=1.058,95%置信区间[CI]:1.014-1.104),患侧和健康侧的肺-肝信号强度比之间的差异(OR=0.814,95%CI:0.700-0.947)与先天性囊性肺病胎儿的出生预后不良相关。此外,ROC曲线分析显示,联合应用病变体积/受累肺体积和观察到的受累肺与健康肺和肝脏之间信号强度比值的差异,比单参数判断更准确地预测先天性囊性肺病患儿的预后。曲线下面积为0.988,截止值为0.33,对应灵敏度为100%,特异性为93.3%,95%CI为0.966-1.000。
    基于先天性囊性肺病胎儿的MRI,我们获得了病变体积的信息,病变体积/受影响的肺体积,病变体积/总肺体积,CVR,和双侧肺-肝信号强度比值差异,所有这些都在预测先天性囊性肺病胎儿的不良预后方面显示出一定的临床价值。此外,在组合指数中,病变体积/受累肺体积和双侧肺-肝信号强度比差异是先天性囊性肺病胎儿预后不良的更有效预测因子。在预测先天性囊性肺病胎儿的不良预后方面有较好的疗效。这为进一步评估先天性囊性肺病胎儿的肺发育提供了一种新的有效的预测方法。有助于提高对先天性囊性肺病胎儿预后的评估和预测。
    UNASSIGNED: The aim of this study is to explore the practical value of prenatal magnetic resonance imaging (MRI) in the assessment of congenital cystic lung disease in fetuses, to evaluate the relative size of the lesion and the status of lung development, and to make an attempt at utilizing the strength of MRI in post-processing to obtain assessment indicators of the size of the lesion and the status of lung development, with which predictions can be made for the prognosis that these fetuses may face after birth. We retrospectively collected and analyzed the data of fetuses diagnosed with congenital cystic lung disease. Prenatal ultrasound examination of these fetuses led to the diagnosis that they were suspected of having congenital cystic lung disease and the diagnosis was confirmed by subsequent prenatal MRI. The fetuses were followed up to track their condition at birth (postnatal respiratory distress, mechanical ventilation, etc.), whether the fetuses underwent surgical treatment, and the recovery of the fetuses after surgical treatment. The recovery of the fetuses was followed up to explore the feasibility of prenatal MRI examination to assess fetal congenital pulmonary cystic disease, and to preliminarily explore the predictive value of prenatal MRI for the prognosis of fetuses with congenital pulmonary cystic disease.
    UNASSIGNED: MRI fetal images were collected from pregnant women who attended the West China Second University Hospital of Sichuan University between May 2018 and March 2023 and who were diagnosed with fetal congenital pulmonary cystic disease by prenatal ultrasound and subsequent MRI. Fetal MRI images of congenital cystic lung disease were post-processed to obtain the fetal lung lesion volume, the fetal affected lung volume, the healthy lung volume, and the fetal head circumference measurements. The signal intensity of both lungs and livers, the lesion volume/the affected lung volume, the lesion volume/total lung volume, the cystic volume ratio (CVR), and the bilateral lung-liver signal intensity ratio were measured. The feasibility and value of MRI post-processing acquisition indexes for evaluating the prognosis of fetuses with congenital cystic lung disease were further analyzed by combining the follow-up results obtained 6 months after the birth of the fetus. Logistic regression models were used to quantify the differences in maternal age, gestational week at the time of MRI, CVR, and bilateral lung-to-liver signal intensity ratio, and to assess whether these metrics correlate with poor prognosis. Receiver operating characteristic (ROC) curves were used to assess the value of the parameters obtained by MRI calculations alone and in combination with multiple metrics for predicting poor prognosis after birth.
    UNASSIGNED: We collected a total of 67 cases of fetuses diagnosed with congenital cystic lung disease by fetal MRI between May 2018 and March 2023, and excluded 6 cases with no normal lung tissue in the affected lungs, 11 cases of fetal induction, and 3 cases of loss of pregnancy. In the end, 47 cases of fetuses with congenital cystic lung disease were included, of which 30 cases had a good prognosis and 17 cases had a poor prognosis. The difference in the difference between the signal intensity ratios of the affected and healthy sides of the lungs and livers of the fetuses in the good prognosis group and that in the poor prognosis group was statistically significant (P<0.05), and the signal intensity ratio of the healthy side of the lungs and livers was higher than the signal intensity ratio of the affected side of the lungs and livers. Further analysis showed that CVR (odds ratio [OR]=1.058, 95% confidence interval [CI]: 1.014-1.104), and the difference between the lung-to-liver signal intensity ratios of the affected and healthy sides (OR=0.814, 95% CI: 0.700-0.947) were correlated with poor prognosis of birth in fetuses with congenital cystic lung disease. In addition, ROC curve analysis showed that the combined application of lesion volume/affected lung volume and the observed difference in the signal intensity ratio between the affected and healthy lungs and liver predicted the prognosis of children with congenital cystic lung disease more accurately than the single-parameter judgment did, with the area under the curve being 0.988, and the cut-off value being 0.33, which corresponded to a sensitivity of 100%, a specificity of 93.3%, and a 95% CI of 0.966-1.000.
    UNASSIGNED: Based on the MRI of fetuses with congenital cystic lung disease, we obtained information on lesion volume, lesion volume/affected lung volume, lesion volume/total lung volume, CVR, and bilateral lung-to-liver signal intensity ratio difference, all of which showing some clinical value in predicting the poor prognosis in fetuses with congenital cystic lung disease. Furthermore, among the combined indexes, the lesion volume/affected lung volume and bilateral lung-to-liver signal intensity ratio difference are more effective predictors for the poor prognosis of fetuses with congenital cystic lung disease, and show better efficacy in predicting the poor prognosis of fetuses with congenital cystic lung disease. This provides a new and effective predictive method for further assessment of pulmonary lung development in fetuses with congenital cystic lung disease, and helps improve the assessment and prediction of the prognosis of fetuses with congenital cystic lung disease.
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  • 文章类型: Editorial
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  • 文章类型: Journal Article
    骨骼发育不良(SD)是一组不同的遗传性疾病。诊断可能很困难,因为许多病例很少见,并且表现多样,但是由于了解了产前最常见的SD,并且使用了超声和MR成像技术的算法,可以为许多家庭提供定向基因检测和咨询。
    Skeletal dysplasias (SDs) are a diverse group of genetic disorders. Diagnosis can be difficult as many are rare and with varied presentations, but with knowledge of the most common SDs presenting prenatal and with an algorithm that uses both sonographic and MR imaging techniques, directed genetic testing and counseling can be provided for many families.
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  • 文章类型: Journal Article
    胎儿MR成像已被证明是诊断胎儿胃肠道病变的有用工具。为了识别各种病理,它是,然而,对于了解不同胎龄胎儿肠道的正常MR成像外观至关重要。在胎儿胃肠道异常的情况下,通过向超声提供额外的信息,MR成像有助于改善交付计划,产后管理,并改善父母的咨询。
    Fetal MR imaging has been shown to be a useful tool for the diagnosis of fetal gastro-intestinal pathologies. To recognize the various pathologies, it is, however, essential to know the normal MR imaging appearance of the fetal bowel at various gestational ages. By providing additional information to ultrasound in case of a fetal gastrointestinal anomaly, MR imaging helps to improve planning for the delivery, postnatal management, and improves parental counseling.
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  • 文章类型: Journal Article
    本文为读者提供了如何进行胎儿MR成像的实践指导,包括扫描仪场强和使用适当的射频接收线圈等技术考虑因素,并总结了作用,优势,以及各种MR成像序列的局限性。作者回顾了扫描准备中要考虑的各种因素,包括研究适应症,定时,产妇准备,以及机构胎儿成像协议的建立。讨论了在采集期间进行扫描优化的其他因素,包括优先考虑产妇的舒适度以及对胎儿成像中可能遇到的各种伪影进行故障排除的方法。
    This article provides the readers with practical guidance on how to perform fetal MR imaging, including technical considerations such as scanner field strength and use of appropriate radiofrequency receive coils, and summarizes the role, strengths, and limitations of the various MR imaging sequences. The authors review the various factors to consider in scan preparation, including study indication, timing, maternal preparation, and the creation of an institutional fetal imaging protocol. Additional factors that go into scan optimization during acquisition including prioritizing maternal comfort and ways to troubleshoot various artifacts that maybe encountered in fetal imaging are discussed.
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  • 文章类型: Journal Article
    这篇综述涵盖了胚胎学,定义,和开放性脊柱发育不良的诊断,重点是胎儿超声和MR影像学发现。还将讨论在胎儿影像学上区分开放性和闭合性脊柱畸形。还回顾了当前的胎儿手术实践和胎儿手术中的影像学发现。
    This review covers the embryology, definition, and diagnosis of open spinal dysraphism with a focus on fetal ultrasound and MR imaging findings. Differentiating open versus closed spinal dysraphic defects on fetal imaging will also be discussed. Current fetal surgery practices and imaging findings in the context of fetal surgery are also reviewed.
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  • 文章类型: Journal Article
    医学成像,特别是胎儿MR成像,随着3特斯拉(3T)临床MR成像系统的引入,发生了变革性的转变。在这些系统中利用更高的静态磁场已经导致了显著的进步,包括上软组织对比,提高空间和时间分辨率,减少图像采集时间。尽管有这些显著的好处,安全问题已经出现,源于升高的静磁场强度,放大的声学噪声,和增加射频功率沉积。本文概述了3T时胎儿MR成像,它的优点和缺点,以及潜在的安全问题。
    Medical imaging, particularly fetal MR imaging, has undergone a transformative shift with the introduction of 3 Tesla (3T) clinical MR imaging systems. The utilization of higher static magnetic fields in these systems has resulted in remarkable advancements, including superior soft tissue contrast, improved spatial and temporal resolution, and reduced image acquisition time. Despite these notable benefits, safety concerns have emerged, stemming from the elevated static magnetic field strength, amplified acoustic noise, and increased radiofrequency power deposition. This article provides an overview of fetal MR imaging at 3T, its benefits and drawbacks, and the potential safety issues.
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  • 文章类型: Journal Article
    目的:评估先天性胎儿缓慢性心律失常的病因,特点,危险因素,和预后。
    方法:这项回顾性研究涉及患有胎儿缓慢性心律失常的胎儿。所有胎儿均采用超声检查。获得了父母的心电图和家族史,和母体自身抗体进行测量。诊断时的妊娠年龄,胎儿心房和心室率,缓慢性心律失常的类型,是否存在先天性心脏病(CHD),胎儿水肿,胎儿心肌功能障碍,心脏外异常,母体自身免疫性疾病,母体自身抗体以及产前治疗,并收集新生儿结局。
    结果:在纳入研究的40个胎儿中,11人患有母亲风湿病,16例患有复杂的心脏异常,例如左右异构现象。患有冠心病的胎儿与没有冠心病的胎儿明显不同,心脏外异常的发生率增加,积水,28天后胎儿死亡和存活时间缩短(p<0.05)。患有母亲风湿性疾病的胎儿的生存率明显优于没有母亲风湿性疾病的胎儿(p<0.05)。对11例胎儿进行了母亲抗心律失常治疗。在子宫内,母体治疗在有或没有母体风湿病的胎儿中,心律失常或水肿的过程没有显着差异(p<0.05)。在回归分析中,无胎儿水肿是与生存相关的唯一独立因素(p=0.04).
    结论:缓慢性心律失常的病程,伴随着生存,似乎在患有母亲风湿性疾病的胎儿中比在患有CHD的胎儿中更有利,尤其是左右异构。水肿是与生存不良相关的唯一独立因素。
    OBJECTIVE: To assess congenital fetal bradyarrhythmias with regard to etiological causes, features, risk factors, and prognosis.
    METHODS: This retrospective study involved fetuses with fetal bradyarrhythmias. All fetuses were evaluated by ultrasonography. Parental ECGs and family histories were obtained, and maternal autoantibodies were measured. Gestational age at diagnosis, fetal atrial and ventricular rates at presentation, type of bradyarrhythmias, the presence or absence of a congenital heart defect (CHD), fetal hydrops, fetal myocardial dysfunction, extra-cardiac abnormalities, maternal autoimmune diseases, maternal autoantibodies as well as prenatal treatment, and neonatal outcome were collected.
    RESULTS: Of the 40 fetuses included in the study, 11 had maternal rheumatologic disease, 16 had complex cardiac anomalies such as left and right isomerism. Fetuses with CHD significantly differed from those without CHD with increased rates of extra-cardiac anomalies, hydrops, fetal deaths and shorter survival after 28 days (p<0.05). Survival was significantly better in fetuses with maternal rheumatic disease as compared with those with no maternal rheumatic disease (p<0.05). Maternal anti-arrhythmic therapy was administered in 11 fetuses. In utero maternal treatment resulted in no significant difference in the course of arrhythmia or hydrops in fetuses with or without maternal rheumatic disease (p<0.05). In regression analysis, the absence of fetal hydrops was the only independent factor associated with survival (p=0.04).
    CONCLUSIONS: The course of bradyarrhythmias, along with survival, seems to be more favorable in fetuses with maternal rheumatic disease than in those with CHD, especially left and right isomerism. Hydrops was the sole independent factor associated with poor survival.
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