Transcription of 177 Understanding MRI - FRCA
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177 Understanding MRI - FRCA
Sign up to receive ATOTW weekly - email ! Understanding MAGNETIC RESONANCE. IMAGING. ANAESTHESIA TUTORIAL OF THE WEEK 177. 3RD MAY 2010. ! Dr Grant Stuart, Specialist Registrar, Chelsea and Westminster Hospital, London Correspondence to ! ! ! QUESTIONS. 1. The following is true about magnetic fields: a) MRI scanners generate magnetic fields between and Tesla b) 1 Tesla is the equivalent of 10 000 Gauss c) The Earth's magnetic field is approximately 1 Gauss d) MRI superconductor coils are immersed in liquid oxygen in order to keep them below Kelvin e) The strength of the magnetic field remains the same as you move away from an MRI scanner 2. With regards to magnetic resonance imaging: a) The T-weighting of an image refers to the exact dosage of contrast agent given to the patient.
Sign up to receive ATOTW weekly - email worldanaesthesia@mac.com ! ATOTW 177 – Understanding Magnetic Resonance Imaging, 03/05/2010 Page 1 of 12
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