Tissue mimicking material for intravascular elasticity imaging

The mechanical properties of agar-gelatin gels used to construct vessel mimicking phantoms for ultrasonic elasticity studies are investigated. Gels with varying compression moduli are made using a gelatin solution (8% by weight) with a variable amount of agar (1%-3% by weight). Carborundum particles...

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Bibliographic Details
Main Authors: De Korte, C.L., Cespedes, E.I., Van der Steen, A.F.W., Norder, B., Te Nijenhuis, K.
Format: Conference Proceeding
Language:English
Subjects:
Acoustic scattering
Biological materials
Elasticity
Frequency
Imaging phantoms
Materials science and technology
Mechanical factors
Particle scattering
Temperature dependence
Ultrasonic imaging
Online Access:Request full text
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Summary:The mechanical properties of agar-gelatin gels used to construct vessel mimicking phantoms for ultrasonic elasticity studies are investigated. Gels with varying compression moduli are made using a gelatin solution (8% by weight) with a variable amount of agar (1%-3% by weight). Carborundum particles were added as scattering material. The modulus is determined using a dynamic mechanical analyzer. The compression modulus of the gels is strongly dependent on the gelling temperature, age and the actual temperature of the samples. Compression moduli spanning a usable range for vascular phantom construction can be achieved by varying the amount of agar. Phantoms constructed from these gels are well suited to serve as a model for plaque containing vessels.
DOI:10.1109/IEMBS.1996.652011