A Survey of Tissue A Survey of Tissue Mimicking Materials Mimicking Materials

(Phantoms) for Use in (Phantoms) for Use in Ultrasound ElastographyUltrasound Elastography

Student: Ali BaghaniStudent: Ali BaghaniSupervisor: Dr. Robert RohlingSupervisor: Dr. Robert Rohling

Dec.01.2006Dec.01.2006EECE Dep., University of British ColumbiaEECE Dep., University of British Columbia

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OutlineOutline

TMM’s or phantomsTMM’s or phantoms TMM’s in medical imaging researchTMM’s in medical imaging research Needs for and aims of this studyNeeds for and aims of this study TMM ingredientsTMM ingredients Comparison tablesComparison tables Future workFuture work SuggestionsSuggestions

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TMM’s or PhantomsTMM’s or Phantoms

Tissue Mimicking Materials (TMM’s) or Tissue Mimicking Materials (TMM’s) or phantoms are materials that mimic some phantoms are materials that mimic some property of property of in vivoin vivo tissue of human body. tissue of human body.

Some applications of TMM’sSome applications of TMM’s Training of medical studentsTraining of medical students Medical imaging researchMedical imaging research Calibration of medical imaging systemsCalibration of medical imaging systems

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TMM’s in Medical Imaging TMM’s in Medical Imaging ResearchResearch

Problems with human subjectsProblems with human subjects Ethical approval for any modificationEthical approval for any modification Getting enough subjectsGetting enough subjects Hazards and liabilityHazards and liability

Benefits of TMM’sBenefits of TMM’s Flexibility in characteristicsFlexibility in characteristics SimplificationSimplification

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Needs for and Aims of this Study(1)Needs for and Aims of this Study(1)

Needs: Study of new medical imaging Needs: Study of new medical imaging techniques at Control and Robotics Lab at the techniques at Control and Robotics Lab at the EECE of UBCEECE of UBC

Aims of literature survey:Aims of literature survey: Document different materials availableDocument different materials available Document the recipesDocument the recipes Asses the state of the art in TMMAsses the state of the art in TMM Make comparative studiesMake comparative studies Summarize TMM characteristics in graphs and tables Summarize TMM characteristics in graphs and tables

for ease of referencefor ease of reference

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Needs for and Aims of this Study(2)Needs for and Aims of this Study(2)

Emphasis:Emphasis: UltrasonographyUltrasonography

• Sound speedSound speed• Attenuation coefficientAttenuation coefficient

ElastographyElastography• DensityDensity• ElasticityElasticity• Viscosity (if available)Viscosity (if available)

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TMM IngredientsTMM Ingredients

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Comparison of CharacteristicsComparison of Characteristics

The classical literature review The classical literature review (summarization)(summarization)

\\rcl1\baghani\shared\Phantom_Survey\\rcl1\baghani\shared\Phantom_Survey Please see the tables in the handoutsPlease see the tables in the handouts

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Future WorkFuture Work

Study two other materialsStudy two other materials Poly(vinyl) chloride or PVCPoly(vinyl) chloride or PVC Supersoft plastic which is also PVC basedSupersoft plastic which is also PVC based

Figure out ways to graphically compare Figure out ways to graphically compare the characteristicsthe characteristics

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Thanks for Your AttentionThanks for Your Attention

All suggestions welcomeAll suggestions welcome How can I best graphically compare the How can I best graphically compare the

characteristics?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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