Scattering Parameter <italic>γ</italic> Related to Tissue Microstructure and Measuring Method

Wenyan Li; Xing Wang; Ying Liu

doi:10.3788/LOP56.181701

Laser & Optoelectronics Progress, Volume. 56, Issue 18, 181701(2019)

Scattering Parameter γ Related to Tissue Microstructure and Measuring Method

Wenyan Li, Xing Wang, and Ying Liu^*

Key Laboratory of Opt-Electronics Information Technology and Science of the Ministry of Education (Tianjin University), School of Science, Tianjin University, Tianjin 300072, China

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Figures & Tables(11)

Fig. 1. Relationship between γ and g under different phase functions

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Fig. 2. Diagram of diffuse reflectance collection by small aperture

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Fig. 3. Relationship between R? and μ's?

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Fig. 4. Relationship between k and γ

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Fig. 5. Relationship between geff and γeff

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Fig. 6. Relationship between R? and μ's?

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Fig. 7. Relationship between k and γ

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Fig. 8. Partially enlarged view of relationship between R? and μ's?

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Table 1. Actual values and measured values of γ

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Table 1. Actual values and measured values of γ

Phase function	Actual measured value	Model calculated value	Relative percentage error /%
	γ=1.45	γ=1.459	0.62
P_Tissue	γ=1.55	γ=1.570	1.20
	γ=1.65	γ=1.653	0.18
	γ=1.75	γ=1.741	0.51
P_MHG	γ=1.65	γ=1.570	4.80
P_{Fried-Jacques}	γ=1.65	γ=1.471	10.80
P_eff	γ=1.65	No solution	100

Table 2. Linear fitting results between R? and μ's?
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Table 2. Linear fitting results between R? and μ's?
Range of value 6.0 3.5 2.0
Goodness of fit 0.9861 0.9988 0.9983

Table 3. Actual values and measured values of γ
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Table 3. Actual values and measured values of γ
μ'_sϕ Actual value of γ Measured value of γ
<3.5 γ=1.45 γ=1.690
γ=1.75 γ=1.810
<2.0 γ=1.45 γ=1.459
γ=1.75 γ=1.741

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Wenyan Li, Xing Wang, Ying Liu. Scattering Parameter γ Related to Tissue Microstructure and Measuring Method[J]. Laser & Optoelectronics Progress, 2019, 56(18): 181701

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