udej8 onvenience. Assume the following values for T1 and T2: for white matter (WM): T1 = 500 nsec for cerebrospinal fluid (CSF): T1 = 2000, T2 = 200 msec Also assume a spin density N oth WM and CSF. a. For a TR = 2000 msec, find the relative signal intensities for WM and CSF (i.e., point A and B on the graph). b. Calculate the crossover TE where WM and CSF have identical T2 weighting (point C c. Now, calculate the signal intensities of WM and CSF for TE = 25 (first echo) and TE = 100 msec (second echo), and the ratio CSF/WM.
udej8 onvenience. Assume the following values for T1 and T2: for white matter (WM): T1 = 500 nsec for cerebrospinal fluid (CSF): T1 = 2000, T2 = 200 msec Also assume a spin density N oth WM and CSF. a. For a TR = 2000 msec, find the relative signal intensities for WM and CSF (i.e., point A and B on the graph). b. Calculate the crossover TE where WM and CSF have identical T2 weighting (point C c. Now, calculate the signal intensities of WM and CSF for TE = 25 (first echo) and TE = 100 msec (second echo), and the ratio CSF/WM.
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter5: Analysis Of Convection Heat Transfer
Section: Chapter Questions
Problem 5.18P: The drag on an airplane wing in flight is known to be a function of the density of air (), the...
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