Dynamic Contrast Enhanced Mri
Dynamic Contrast Enhanced Mri - Related Videos
11:38
In vivo Imaging of Optic Nerve Fiber Integrity by Contrast-Enhanced MRI in Mice
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Cited by 7 •
2014
This video illustrates a method, using a clinical 3 T scanner, for contrast-enhanced MR imaging of the naïve mouse visual projection and for repetitive and longitudinal in vivo studies of optic nerve degeneration associated with acute optic nerve crush injury and chronic optic nerve degeneration in knock-out mice (p50KO).
06:24
Dynamic Contrast Enhanced Magnetic Resonance Imaging of an Orthotopic Pancreatic Cancer Mouse Model
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Cited by 9 •
2015
The goal of this protocol is to apply dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) for orthotopic pancreatic tumor xenografts in mice. DCE-MRI is a non-invasive method to analyze microvasculature in a target tissue, and useful to assess vascular response in a tumor following a novel therapy.
05:50
Contrast Enhanced Vessel Imaging using MicroCT
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Cited by 17 •
2011
Contrast enhanced small animal vessel imaging by microCT is a rapid, cost-effective and high-throughput technique for serial in situ examination for tumor development, for analyzing the network of blood vessels that nourish them, and for following the response of tumors to preclinical therapeutic intervention(s).
08:36
Functional Neuroimaging Using Ultrasonic Blood-brain Barrier Disruption and Manganese-enhanced MRI
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Cited by 4 •
2012
A technique is described for broadly opening the blood-brain barrier in the mouse using microbubbles and ultrasound. Using this technique, manganese can be administered to the mouse brain. Because manganese is an MRI contrast agent that accumulates in depolarized neurons, this approach enables imaging of neuronal activity.
06:49
Phase Contrast and Differential Interference Contrast (DIC) Microscopy
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Cited by 26 •
2008
This protocol highlights the principles and practical applications of Phase and Differential Interference Contrast (DIC)...
FAQs
Enhancement curves describe how signal changes as contrast enters and leaves a tissue region. Their shape provides a time-dependent view of tissue behavior rather than a single anatomical snapshot. Clinicians and researchers can use these curves to compare lesions, characterize abnormal tissue, and identify quantitative patterns that may support diagnosis or assessment of disease-related change.
Contrast-agent behavior can reflect blood flow, blood volume, vascular permeability, and the size or characteristics of the extracellular space. These properties influence how quickly enhancement appears, how strongly it develops, and how it changes afterward. Evaluating them together helps connect MRI signal patterns with tissue function, including vascular and microenvironmental differences associated with disease.
Pharmacokinetic models analyze contrast-related signal changes using mathematical descriptions of tissue distribution and movement. They extend visual interpretation by producing quantitative measures that can serve as imaging biomarkers of tissue function. This approach is particularly useful when researchers need reproducible information for lesion characterization, comparison across examinations, or evaluation of changing disease biology.
The examination begins with intravenous administration of a contrast agent, followed by repeated MRI acquisitions as the agent moves through tissue. Signal changes are then organized over time, often as enhancement curves, and may be analyzed with pharmacokinetic models. The resulting measurements provide both temporal and quantitative information for subsequent clinical interpretation.
Its medical applications include assessment of tumors, inflammatory disease, and vascular abnormalities. The technique adds functional information to anatomical imaging, which can help characterize lesions and investigate abnormal vascular behavior. Because the measurements describe tissue response over time, they can also support treatment planning and the evaluation of disease progression.
Treatment-related changes in tissue perfusion, vascularity, permeability, or extracellular characteristics may alter enhancement patterns and quantitative measurements. Comparing these findings across examinations can provide evidence that tissue behavior is changing during therapy. In this context, Dynamic Contrast Enhanced MRI supports monitoring of response and may contribute biomarkers for judging progression or therapeutic effect.