使用胎儿心脏量化技术评估高甲状腺妊娠中胎儿心脏结构和功能的评估
Qiangqiang You1, Yao Peng2, Sitong Yue2
1Department of Cardio-Thoracic Surgery, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, China.
Quantitative imaging in medicine and surgery
|February 11, 2026
概括
孕产妇甲状腺功能过高会改变胎儿的心脏结构和功能,受影响的胎儿表现出心室膨胀和收缩能力受损. 新的胎儿心脏量化 (HQ) 技术揭示了这些定量变化,有助于产前风险评估.
科学领域:
- 心脏病学 心脏病学
- 孕产妇和胎儿医学 孕产妇和胎儿医学
- 医疗成像医学成像
背景情况:
- 甲状腺功能障碍影响2.4%的怀孕,与早产和胎儿死亡等不良结果有关.
- 孕产妇甲状腺功能过高症对胎儿心脏结构和功能的具体影响尚不清楚.
- 这项研究调查了胎儿心脏变化与母亲甲状腺功能障碍有关.
研究的目的:
- 量化评估胎儿心脏形态和功能变化在孕期由母体甲状腺功能过高症复杂的怀孕.
- 评估新型胎儿心脏量化 (HQ) 技术在表征这些变化的有用性.
- 探索母体甲状腺激素水平与胎儿心脏参数之间的潜在关联.
主要方法:
- 一项涉及282名孕妇的前性研究 (197名健康,85名甲状腺功能过高).
- 使用GE Voluson E10系统进行的详细胎儿心声学.
- 胎儿HQ分析用于测量心脏几何 (例如,GSI,心室尺寸) 和功能 (例如,GLS,FAC).
主要成果:
- 与对照组相比,甲状腺功能高的母亲的胎儿表现出明显更大的左和右心室缩和腹缩区域 (P<0.001).
- 观察到心脏几何变化,包括甲状腺功能增高组 (P=0.009) 全球球球度指数 (GSI) 较低.
- 较少负的LV GLS值 (P=0.024) 和减少的LV FAC (P=0.027) 表示心功能受损.
结论:
- 孕产妇甲状腺功能障碍严重影响胎儿的心脏形态和功能.
- 胎儿HQ技术为这些心脏变化提供了有价值的定量见解.
- 胎儿HQ在高风险怀孕的产前评估中显示出临床有用性.
相关概念视频
Fetal Circulation
3.2K
Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
3.2K
Structural Protein Function
30.0K
Structural proteins are a category of proteins responsible for functions ranging from cell shape and movement to providing support to major structures such as bones, cartilage, hair, and muscles. This group includes proteins such as collagen, actin, myosin, and keratin.
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to...
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to...
30.0K
Structure of Cardiac Muscles
17.1K
Cardiac muscle, or myocardium, is a specialized type of muscle found exclusively in the heart. Its unique structural and functional characteristics enable the heart to perform its vital role of pumping blood throughout the body continuously and rhythmically. The cardiac muscle cells, or cardiomyocytes, possess an endomysium and perimysium but do not have an epimysium.
Compared to skeletal muscles, cardiac muscle cells are small and mostly have a single nucleus. Additionally, they are usually...
Compared to skeletal muscles, cardiac muscle cells are small and mostly have a single nucleus. Additionally, they are usually...
17.1K
Physiology of the Heart: The Cardiac Cycle
10.0K
The cardiac cycle describes the events from one heartbeat to the next. It includes three main phases: diastole, atrial systole, and ventricular systole, all driven by changes in chamber pressures and the function of heart valves.
Diastole: The Relaxation Phase
During diastole, all four heart chambers relax. The atrioventricular (AV) valves open, and the semilunar valves close. This phase sees the lowest chamber pressures, promoting ventricular filling. Venous blood enters the heart through the...
Diastole: The Relaxation Phase
During diastole, all four heart chambers relax. The atrioventricular (AV) valves open, and the semilunar valves close. This phase sees the lowest chamber pressures, promoting ventricular filling. Venous blood enters the heart through the...
10.0K
Cardiac Output I:Effect of Heart Rate on Cardiac Output
2.8K
Cardiac Output
Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
Effect of Heart Rate on Cardiac Output
Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart...
Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
Effect of Heart Rate on Cardiac Output
Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart...
2.8K
Cardiac Catheterization II: Right Heart Catheterization
1.1K
Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...
1.1K


