Hepatic Blood Flow
Hepatic Blood Flow - Related Videos
10:40
Visualization and Analysis of Blood Flow and Oxygen Consumption in Hepatic Microcirculation: Application to an Acute Hepatitis Model
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Cited by 10 •
2012
An optical system was developed to visualize hepatic microcirculation with FITC-labeled erythrocytes and to measure the partial pressure of oxygen in the microvessels with laser-assisted phosphorimetry. This method can be used to investigate physiological and pathological mechanisms by analyzing microvascular structure, diameter, blood flow velocity, and oxygen tension.
01:26
Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow
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2025
Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug binding...
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.
07:56
A Comprehensive Rat Model For Assessing Hepatic Transport Pathways Through Simultaneous Lymphatic And Blood Vascular Sampling
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2026
This experimental protocol describes a hepatic lymph duct-cannulated rat model that enables direct and quantitative assessment of hepatic lymphatic and vascular drainage. The model allows simultaneous sampling of hepatic lymph and systemic blood to investigate hepatic transport, metabolism, and immune signaling, supporting studies of drug pharmacokinetics and liver-specific biology.
16:19
Heterotopic Auxiliary Rat Liver Transplantation With Flow-regulated Portal Vein Arterialization in Acute Hepatic Failure
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Cited by 5 •
2014
Auxiliary liver transplantation provides a temporary support in acute hepatic failure, until regeneration of the failing liver. The heterotopic auxiliary liver transplantation (HALT) with portal vein arterialization (PVA) renders sufficient liver function. We developed an analogous technique in the rat, to examine the influence of the portal vein arterialization on the morphology and function of the graft.
FAQs
The two inflows deliver blood with different origins and characteristics: the portal vein brings nutrient-rich venous blood from the gastrointestinal tract, whereas the hepatic artery brings oxygenated blood. Their convergence in hepatic sinusoids connects intestinal nutrient delivery with arterial oxygen supply, supporting the liver’s varied metabolic and processing demands.
Mixing within hepatic sinusoids is important because both incoming streams pass through the liver’s internal circulation before blood reaches the central veins and hepatic veins. This arrangement links gastrointestinal and arterial contributions to hepatic metabolism, detoxification, and nutrient processing, while the outgoing circulation carries blood onward through the hepatic venous system.
Because hepatic blood flow supports metabolism, detoxification, nutrient processing, and regulation of systemic physiology, changes in perfusion can have significance beyond the liver itself. Clinically, examining this circulation helps connect local vascular abnormalities with altered liver function or broader physiological effects in affected patients.
Portal hypertension and ischemic injury are both clinically relevant because each signals a different problem to be considered in relation to hepatic blood flow. The circulation provides a framework for interpreting these findings alongside liver function, perfusion changes, and the effects of disease or surgery, rather than viewing them as isolated observations.
Drug clearance cannot be interpreted independently of hepatic circulation. Hepatic blood flow gives clinicians a vascular context for considering how blood reaches liver tissue and how perfusion may change in disease or after surgery. This context is used with liver-function assessment to support clinical interpretation of clearance and treatment planning.
Knowledge of the inflow and outflow pathways helps clinicians interpret liver function and recognize how disease or surgery may alter perfusion. That information contributes to diagnosis and treatment planning, particularly when portal hypertension, ischemic injury, drug clearance, or broader physiological effects are relevant to the patient’s clinical assessment.