A Survey of Tissue Mimicking Materials (Phantoms) for Use in Ultrasound Elastography Student: Ali Baghani Supervisor: Dr. Robert Rohling Dec EECE Dep., University of British Columbia

2 Outline  TMM’s or phantoms  TMM’s in medical imaging research  Needs for and aims of this study  TMM ingredients  Comparison tables  Future work  Suggestions

3 TMM’s or Phantoms  Tissue Mimicking Materials (TMM’s) or phantoms are materials that mimic some property of in vivo tissue of human body.  Some applications of TMM’s Training of medical students Training of medical students Medical imaging research Medical imaging research Calibration of medical imaging systems Calibration of medical imaging systems

4 TMM’s in Medical Imaging Research  Problems with human subjects Ethical approval for any modification Ethical approval for any modification Getting enough subjects Getting enough subjects Hazards and liability Hazards and liability  Benefits of TMM’s Flexibility in characteristics Flexibility in characteristics Simplification Simplification

5 Needs for and Aims of this Study(1)  Needs: Study of new medical imaging techniques at Control and Robotics Lab at the EECE of UBC  Aims of literature survey: Document different materials available Document different materials available Document the recipes Document the recipes Asses the state of the art in TMM Asses the state of the art in TMM Make comparative studies Make comparative studies Summarize TMM characteristics in graphs and tables for ease of reference Summarize TMM characteristics in graphs and tables for ease of reference

6 Needs for and Aims of this Study(2)  Emphasis: Ultrasonography Ultrasonography Sound speedSound speed Attenuation coefficientAttenuation coefficient Elastography Elastography DensityDensity ElasticityElasticity Viscosity (if available)Viscosity (if available)

7 TMM Ingredients

8 Comparison of Characteristics  The classical literature review (summarization) \\rcl1\baghani\shared\Phantom_Survey  Please see the tables in the handouts

9 Future Work  Study two other materials Poly(vinyl) chloride or PVC Poly(vinyl) chloride or PVC Supersoft plastic which is also PVC based Supersoft plastic which is also PVC based  Figure out ways to graphically compare the characteristics

10 Thanks for Your Attention  All suggestions welcome How can I best graphically compare the characteristics? How can I best graphically compare the characteristics? Are there any other materials I’m missing? Are there any other materials I’m missing? What aspects have I overlooked? What aspects have I overlooked?

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