MRSO prep exam questions with answers 2024/2025

MRSO prep exam IEC DB/DBA limits for MRI - correct answer 140 DB 99 DBA parameters to reduce noise in MRI - correct answer -thicker slices -larger FOV -smaller matrix -parallel imaging -reducing bandwidth (increasing TE) -active noise reduction -Low SAR RF mode (increase in echo spacing)-thicker slices MRI sequence that produces the most and least noise in MRI - correct answer Most noise EPI/DWI least noise spin echo sequence an increase in slew rate and gradient amplitude causes an increase in - correct answer Peripheral nerve stimulation stimulation of the eyes in a patient causing an appearance of flashing lights - correct answer magnetophosphenes stimulation of the vestibular system causing a vestibular ocular reflex where the eyes rapidly move side to side - correct answer nystagmus what force causes the noise heard in MRI - correct answer lorentz forces B1+rms - correct answer the amplitude of the B1 frequency over 10 seconds--the intensity of the changing magnetic field in our patient will determine the amount of energy transferred to our patient