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What are the relative signal intensities for Grey and White matter u.pdf

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What are the relative signal intensities for Grey and White matter using the T1 and T2 values given below, if TR is 300 ms and TE = 15 ms. Gray matter: T1 = 520(msec) and T2 = 95 White matter: T1 = 380(msec) and T2 = 85 Solution The relative signal intensities for Grey and White matter are calculated by using the equation: SI = K * rho 8(1-exp { -[TR-TE] / T1} * exp {-TE / T2}) where SI = signal intensity, K represents the influence of flow, rho is proton density, Tr is the repetition time, Te is echo time, and T1 and T2 are relaxation times. Proton density is the concentration of protons in a tissue in the form of biomolecules. From the given data, TR = 300 ms and TE = 15 ms. Gray matter: T1 = 520(msec) and T2 = 95 White matter: T1 = 380(msec) and T2 = 85 Long T1 values appear dark and short T1 appears bright. Hence, the T1 of grey matter appears dark and and T1 of white matter appears bright and the T2 of white matter appears bright and and T2 of white matter appears dark..

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What are the relative signal intensities for Grey and White matter using the T1 and T2 values given below, if TR is 300 ms and TE = 15 ms. Gray matter: T1 = 520(msec) and T2 = 95 White matter: T1 = 380(msec) and T2 = 85 Solution The relative signal intensities for Grey and White matter are calculated by using the equation: SI = K * rho 8(1-exp { -[TR-TE] / T1} * exp {-TE / T2}) where SI = signal intensity, K represents the influence of flow, rho is proton density, Tr is the repetition time, Te is echo time, and T1 and T2 are relaxation times. Proton density is the concentration of protons in a tissue in the form of biomolecules. From the given data, TR = 300 ms and TE = 15 ms. Gray matter: T1 = 520(msec) and T2 = 95 White matter: T1 = 380(msec) and T2 = 85 Long T1 values appear dark and short T1 appears bright. Hence, the T1 of grey matter appears dark and and T1 of white matter appears bright and the T2 of white matter appears bright and and T2 of white matter appears dark.

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What are the relative signal intensities for Grey and White matter u.pdf

  • 1. What are the relative signal intensities for Grey and White matter using the T1 and T2 values given below, if TR is 300 ms and TE = 15 ms. Gray matter: T1 = 520(msec) and T2 = 95 White matter: T1 = 380(msec) and T2 = 85 Solution The relative signal intensities for Grey and White matter are calculated by using the equation: SI = K * rho 8(1-exp { -[TR-TE] / T1} * exp {-TE / T2}) where SI = signal intensity, K represents the influence of flow, rho is proton density, Tr is the repetition time, Te is echo time, and T1 and T2 are relaxation times. Proton density is the concentration of protons in a tissue in the form of biomolecules. From the given data, TR = 300 ms and TE = 15 ms. Gray matter: T1 = 520(msec) and T2 = 95 White matter: T1 = 380(msec) and T2 = 85 Long T1 values appear dark and short T1 appears bright. Hence, the T1 of grey matter appears dark and and T1 of white matter appears bright and the T2 of white matter appears bright and and T2 of white matter appears dark.