P09052: Molecular Imaging System Upgrade

Product Architecture

Table of Contents

System Design

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Subsystem Breakdown

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Optical Design

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Mechanical Design

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Mechanical System Design Summary

Programming Design

Software Flow Diagram

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Objective: To develop a functional process using three different software platforms with highlights on integration and ease of use.

Phantom Design

Design Process

The procedure of measuring optical properties of the phantom hand will follow Beer Lambert's law. Different amount of materials will be mixed with deionized water. Following Beer's law, the total attenuation coefficients mu(total) = mu(absorption) + mu(scattering). This was calculated from: mu(total) = -(1/L)ln(P/Po) where "Po" = the measured power of the not attenuated beam and P is the power of the transmitted light. In the case of ink being a possible material, is acts as an ideal absorber while the outer lipid covering fo the phantom acts as a perfect scatterer. Mu(total) reduces to mu(a) for water-ink solutions and to mu(s) for water-lipid solutions.

The theoretical phantom hand will consist of a mixture and layering of agar gel, ink, and lipid. The lipid acts as an outercovering, mimicing the optical reflective properties of the skin, while the agar gel acts as that of muscle. The india ink acts as an absorbing agent to absorb the dye that will be injected for fluorescence. Further testing will be done to determine the exact fluorescent reflective properties of a cadaver hand to best determine the properties for the phantom hand. Testing of the phantom hand will follow the aforementioned equation.

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