Biomedical Engineering > GATE 2020 > Magnetic Resonance Imaging
A patient is initially imaged in a 1 Tesla MRI scanner and induced voltage is found to be equal to V1. The expression for the magnitude of the received voltage in RF coil is given below.
|V| = 2πγoVsMo(Sinα)βr
where Vs is MR slice volume, M0 is magnitude of resultant magnetic vector at equilibrium, γ0 is Larmor frequency, α is tip angle, βr is magnetic field sensitivity of receive coil.
When the patient is shifted to a 3 Tesla MRI scanner that uses the same RF coil and the slice thickness is halved, the magnitude of the induced voltage was found to be equal to V2. The ratio V2/V1 is _______.
|V| = 2πγoVsMo(Sinα)βr
where Vs is MR slice volume, M0 is magnitude of resultant magnetic vector at equilibrium, γ0 is Larmor frequency, α is tip angle, βr is magnetic field sensitivity of receive coil.
When the patient is shifted to a 3 Tesla MRI scanner that uses the same RF coil and the slice thickness is halved, the magnitude of the induced voltage was found to be equal to V2. The ratio V2/V1 is _______.
Correct : c
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