Uterine Artery Blood Flow
Uterine Artery Blood Flow - Related Videos
03:52
Phase Contrast Magnetic Resonance Imaging to Assess Blood Flow in the Arteries of a Rat
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2025
Source: Chiu, S., et al. Phase Contrast Magnetic Resonance Imaging in the Rat Common Carotid Artery. J. Vis. Exp. (2018).This video demonstrates phase contrast magnetic resonance imaging (PC-MRI) to measure blood flow in the common carotid artery of a rat. After securing an anesthetized rat on the MRI bed and ensuring stable physiological parameters, the common carotid artery is scanned to capture images at defined intervals. Blood flow is then computed from these images to evaluate changes...
03:38
Developing a Cerebral Blood Flow Atlas for Blood Flow Mapping
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2025
Source: Tan, Z., et al., Construction and Application of Cerebral Functional Region-Based Cerebral Blood Flow Atlas Using Magnetic Resonance Imaging-Arterial Spin Labeling. J. Vis. Exp. (2024).This video demonstrates the method to construct a cerebral blood flow atlas by integrating magnetic resonance imaging or MRI-arterial spin labeling data with segmented brain regions, visualizing blood flow patterns, and quantifying flow levels across functional areas.
02:22
Positioning Laser Doppler Probe: A Technique to Implant Probe Over Middle Cerebral Artery for Blood Flow Measurement in Murine Model
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2025
This video describes the surgical procedure to immobilize the laser Doppler probe over the murine brain's middle cerebral artery, or MCA. The probe helps to measure the blood flow in the brain's microvasculature by measuring the Doppler shift caused due to the motion of red blood cells within the artery.
08:02
Mouse Model of Surgically-induced Endometriosis by Auto-transplantation of Uterine Tissue
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Cited by 62 •
2012
A description of the surgical induction of endometriosis in mice and rats by auto-transplantation of uterine tissue to the arterial cascade of the intestinal mesentery.
01:29
Blood Flow
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2025
Blood is pumped by the heart into the aorta, the largest artery in the body, and then into increasingly smaller arteries, arterioles, and capillaries. The velocity of blood flow decreases with increased cross-sectional blood vessel area. As blood returns to the heart through venules and veins, its velocity increases. The movement of blood is encouraged by smooth muscle in the vessel walls, the movement of skeletal muscle surrounding the vessels, and one-way valves that prevent backflow. Slow...
FAQs
Hormonal signaling and pregnancy-related vascular remodeling change uterine artery caliber and resistance. As these vessels dilate, resistance falls and a larger share of circulation can reach the developing uteroplacental bed. This adaptation supports increasing oxygen and nutrient demands associated with the growing placenta, making vascular responsiveness central to effective placental perfusion.
Velocity describes how blood moves through the circulation, whereas resistance patterns indicate how readily blood encounters opposition within the vascular bed. Interpreting these Doppler features together gives a more informative picture than considering a single measurement alone. The combined pattern can help clinicians evaluate placental function and fetal well-being.
Altered flow can indicate that vascular adaptation is not adequately supporting the uteroplacental circulation. This finding can provide evidence of impaired placentation and support further evaluation of placental function. Its clinical relevance comes from linking the observed arterial pattern with pregnancy assessment, particularly when concerns about fetal well-being or hypertensive disorders are present.
Doppler ultrasound examines uterine artery circulation through flow velocity and resistance patterns. These measurements show how blood is moving through the vessels and provide information about the quality of uteroplacental perfusion. Clinicians use the findings to evaluate placental function and fetal well-being, rather than relying only on a general assessment of pregnancy status.
Clinicians may assess uterine artery blood flow when investigating hypertensive pregnancy disorders or fetal growth restriction, because altered circulation can provide evidence of impaired placentation. The same assessment can contribute to evaluation of infertility and assisted reproduction. In each setting, Doppler findings add vascular information to broader assessment of uteroplacental and fetal well-being.
The uterine arteries supply the circulation that supports the placenta, so their flow patterns provide information about whether uteroplacental perfusion is functioning appropriately. Doppler findings can therefore help connect maternal vascular changes with placental performance and fetal well-being. This relationship makes the assessment useful when clinicians evaluate abnormal pregnancy outcomes or concerns about placentation.