简介：
Overview
This article describes a detailed methodology of using a radiopaque lead-based silicone rubber to perfuse the murine vasculature for aortic diameter quantification in a mouse model of aortic aneurysm and dissection. This method could help answer key questions in the vascular biology field, particularly regarding vessel size in different animal models of vascular disease.
Key Study Components
Area of Science
- Vascular biology
- Mouse models
- Aortic aneurysm and dissection
Background
- Understanding vessel size is crucial in vascular disease research.
- Micro-CT provides detailed imaging of both large and small vessels.
- The technique allows for precise quantification of vascular structures.
- Preparation involves surgical procedures for postmortem analysis.
Purpose of Study
- To quantify aortic diameter in a mouse model.
- To assess the impact of vascular disease on vessel size.
- To utilize advanced imaging techniques for better analysis.
Methods Used
- Use of radiopaque lead-based silicone rubber for perfusion.
- Micro-CT imaging for detailed vascular analysis.
- Intracardiac perfusion postmortem for specimen preparation.
- Administration of isoflurane for anesthesia during procedures.
Main Results
- Detailed imaging of murine vasculature achieved.
- Quantification of aortic diameter demonstrated.
- Methodology validated for use in vascular biology studies.
- Potential applications in understanding vascular diseases.
Conclusions
- The technique enhances the ability to study vascular changes.
- Micro-CT imaging is effective for both large and small vessels.
- This methodology can inform future research in vascular biology.
What is the main advantage of this technique?
The main advantage is that micro-CT enables detailed images of both large and small vessels, allowing for precise quantification.
How is anesthesia maintained during the procedure?
Anesthesia is maintained with 2 to 2.5 percent isoflurane from a face mask attached to a scavenger with one liter of oxygen per minute.
What preparations are needed before the CT analysis?
Surgical procedures must be performed 24 hours prior to the CT analysis to prepare the specimen for postmortem intracardiac perfusion.
What is the purpose of the toe pinch test?
The toe pinch test is performed to check for the absence of a pedal reflex, ensuring the animal is adequately anesthetized.
What type of imaging does this method utilize?
This method utilizes micro-CT imaging to provide detailed images of the vasculature.
In what context can this methodology be applied?
This methodology can be applied in studies related to vascular diseases and the quantification of vessel size in various animal models.
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