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Updated: Jul 20, 2026
Establishment and Evaluation of a Porcine Vein Graft Disease Model
Published on: July 25, 2022
New experimental model of sinus and cortical vein thrombosis in pigs for MR imaging studies
C P Stracke1, E Spuentrup, M Katoh
1Department of Neuroradiology, University Hospital, RWTH Achen University, Aachen, Germany. strackenpaul@aol.com
Introduction:
Diagnosis of cerebral sinus vein thrombosis is still a challenge for imaging. MRI and MRA play a major role in sinus imaging. For further development of MR techniques, MR-compatible animal models are required. The aim of this study was to develop an animal model for sinus thrombosis and additional cortical vein thrombosis with a clot of human blood for MR imaging studies.
Methods:
A combined surgical and interventional approach was carried out in 13 pigs. After minimal invasive surgical access to the anterior superior sagittal sinus and cortical vein, thrombosis with human blood was induced using an interventional catheter approach. MR imaging was performed prior to and after thrombus induction.
Results:
Sinus thrombosis was induced in 12 of 13 animals. Three animals suffered acute subdural haemorrhage; one of these animals died during the intervention, and one died after thrombus induction. MR imaging of the thrombosed sinus could easily be performed without significant artefacts in 11 of 13 animals.
Conclusion:
This new model of sinus and cortical vein thrombosis with a clot of human blood allows artefact-free imaging studies on MR.
Insights
Researchers developed a novel animal model for cerebral sinus and cortical vein thrombosis using human blood clots. This model enables artifact-free magnetic resonance imaging (MRI) studies for improved diagnosis.
Area of Science:
- Biomedical Engineering
- Medical Imaging
- Veterinary Science
Background:
- Diagnosing cerebral sinus vein thrombosis (CSVT) remains challenging in clinical imaging.
- Magnetic Resonance Imaging (MRI) and Magnetic Resonance Angiography (MRA) are crucial for sinus imaging.
- Development of advanced MR techniques necessitates MR-compatible animal models.
Purpose of the Study:
- To develop a novel animal model for inducing sinus thrombosis and cortical vein thrombosis.
- To utilize human blood clots within the animal model for MR imaging studies.
- To facilitate advancements in MR imaging techniques for diagnosing CSVT.
Main Methods:
- A combined surgical and interventional approach was employed in 13 pigs.
- Minimal invasive surgery provided access to the anterior superior sagittal sinus and cortical vein.
- Human blood clots were induced using an interventional catheter approach, followed by pre- and post-thrombosis MR imaging.
Main Results:
- Successful induction of sinus thrombosis in 12 out of 13 animals.
- Three animals experienced acute subdural hemorrhage, with two fatalities during or post-intervention.
- Artifact-free MR imaging of the thrombosed sinus was achieved in 11 animals.
Conclusions:
- A new animal model for sinus and cortical vein thrombosis using human blood clots has been successfully developed.
- This model permits artifact-free MR imaging studies.
- The model holds significant potential for advancing research in CSVT diagnosis and MR imaging techniques.