GATE Medical Imaging Systems: Magnetic Resonance Imaging – Previous Year Questions
12 GATE previous year questions on Magnetic Resonance Imaging (Medical Imaging Systems, Biomedical Engineering) with answers and explanations, from every paper.
- GATE 2020 BM Q15 – The source asks which MRI contrast results from “long T REP or short T ECHO.”
- GATE 2020 BM Q51 – An MRI RF coil at 1 T has induced voltage magnitude V =2 0V sM 0()Br, with γ₀ the Larmor frequency, Vₛ slice volume, M₀ equilibrium magnetization and…
- GATE 2021 BM Q50 – An axial MR slice at the isocentre of a 1.5 T scanner has thickness 2.5 mm. Slice-selection gradient is 2 gauss/cm and proton gyromagnetic ratio is…
- GATE 2022 BM Q25 – Which explanation of MRI relaxation time constants T₁ and T₂ is correct?
- GATE 2023 BM Q41 – In MRI, s(t)= m(x,y)e-j2[K x(t)x+K y(t)y]dx\,dy, where Kₓ and Kᵧ are proportional to time integrals of gradients Gₓ and Gᵧ. The gradients are in phase…
- GATE 2024 BM Q33 – Sodium gyromagnetic frequency ratio is 11.26 MHz/T. Find its Larmor frequency at 3 T, nearest integer MHz.
- GATE 2024 BM Q40 – Which MRI timing specification gives proton-density weighting? T1,T2 are tissue relaxation times, TR repetition time, TE echo time.
- GATE 2025 BM Q14 – Statement (i): Structural MRI has better spatial resolution than EEG. Statement (ii): EEG has better temporal resolution than structural MRI. Which is…
- GATE 2025 BM Q62 – Proton gyromagnetic frequency ratio is 42.58 MHz/T. Find resonance frequency at 1.5 T to two decimal places in MHz.
- GATE 2026 BM Q33 – An MRI signal has T2=100 ms and initial intensity 500 a.u. Find the intensity at t=50 ms, rounded to one decimal place.
- GATE 2026 BM Q34 – The gyromagnetic frequency ratio of ³¹P is 17.23 MHz/T. Find its Larmor frequency at 3 T, rounded to one decimal place in MHz.
- GATE 2026 BM Q47 – The shown MRI pulse sequence marks repetition time TR and echo time TE. Identify it.