5. Assume an MRI scanner imaging 'H with the following specifications: Bo = 3.0 T. Assume that with the Z-gradient on, the magnetic field strength is B0 at location Z = Zc: a. With a bandwidth of 1500 Hz, what is the gradient strength (G2) that would allow us to image a slice with 0.75 mm thickness? b. Using the gradient calculated in (a), we need to acquire an MR slice with the same slice width and positioned at 2.5 cm above the Zc position (Z = Zc +2.5 cm). What is the required RF excitation pulse center frequency (in MHz) for the slice selection pulse?

5. Assume an MRI scanner imaging 'H with the following specifications: Bo = 3.0 T. Assume that with the Z-gradient on, the magnetic field strength is B0 at location Z = Zc: a. With a bandwidth of 1500 Hz, what is the gradient strength (G2) that would allow us to image a slice with 0.75 mm thickness? b. Using the gradient calculated in (a), we need to acquire an MR slice with the same slice width and positioned at 2.5 cm above the Zc position (Z = Zc +2.5 cm). What is the required RF excitation pulse center frequency (in MHz) for the slice selection pulse?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

5. Assume an MRI scanner imaging 'H with the following specifications:
Bo = 3.0 T. Assume that with the Z-gradient on, the magnetic field strength is B0
at location Z = Zc:
a. With a bandwidth of 1500 Hz, what is the gradient strength (G2) that would
allow us to image a slice with 0.75 mm thickness?
b. Using the gradient calculated in (a), we need to acquire an MR slice with the
same slice width and positioned at 2.5 cm above the Z. position (Z = Z. +2.5
cm). What is the required RF excitation pulse center frequency (in MHz) for
the slice selection pulse?

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