Magnetic Resonance Imaging (MRI)fully solved 2023

Magnetic Resonance Imaging (MRI)fully solved 2023magnetic, radio - correct answer MRI is the use of __________ fields and ________ waves to obtain a mathematically reconstructed image. 1977 - correct answer The first MRI scan was completed in July ______. Indomitable, 5 - correct answer First scanner ("____________") constructed by Drs. Damadian, Minkoff, and Goldsmith. It took almost _____ hours to produce one image. 10^-7 eV - correct answer MRI low energy = ______ eV 60,000 eV - correct answer Typical high energy x-rays = ________ eV 1. Non-ionizing energy 2. High contrast resolution 3. Imaging multiple planes 4. Brain & Spinal cord studies - correct answer What are the 4 advantages when doing a MRI? 1. N____________ e_______ 2. H_______ c_________ r____________ 3. I__________ m____________ p__________ 4. B________ & S_________ c______ s_________ Hydrogen (85%) - correct answer The strong magnetic field of an MRI will cause the nuclei of which element to align and precess? ____% in the body? Precession - correct answer A process where a spinning object is acted on by an outside force? longer, greater, horizontal, vertical, RF - correct answer The __________(longer/shorter) the radio waves applied, the ____________(greater/lesser) the angle of precession. Changes angle from _____________ to ___________ position. Sends and receives ____ signal. resonance - correct answer Radio waves are in ___________ with precessing nuclei. Generation, electrical - correct answer MRI Signal ____________ gets created when R/F pulse is turned off, nuclei relaxes, emits waves from nuclei into ___________ signal.