MRI Study guides, Class notes & Summaries

Magnetohydrodynamic effect - ANSWER-When moving blood enters a magnetic field, an effect on the ECG seen as a "T wave swelling" or spike occurs, also known as Heart valves - ANSWER-Which of the following implants would be considered acceptable for an MRI scan at 1.5Tesla? Warmth and/or increase in body temperature - ANSWER-The effects of time varying magnetic fields can include all of the following EXCEPT: Epinephrine - ANSWER-In the event that a patient develops severe bronchospasms ...

Cervical Spine - ANSWER-The portion of the spinal column consisting of the first seven vertebrae that lie in the neck. C-Spine is another name used for Cervical Spine. (C1-C7) Thoracic Spine - ANSWER-The 12 vertebrae that lie between the cervical vertebrae and the lumbar vertebrae. One pair of ribs is attached to each of the thoracic vertebrae. T-Spine is another name used for Thoracic Spine. (T1-T12) Lumbar Spine - ANSWER-Low back; The part of the spine comprised of five vertebral bodies ...

What are two categories that diagnostic imaging contrast depends on? - ANSWER-Intrinsic and Extrinsic parameters Intrinsic parameters - ANSWER--T1 recovery -T2 decay -PD -Flow These cannot be manipulated Extrinsic parameters - ANSWER--TR -TE -FA -TI -b-value -echo train These can be manipulated by the MRT Factors that determine T1 and T2 relaxation times of tissue? - ANSWER--the inherent energy of the tissue -how closely packed the molecules are -how well the molecules tumbl...

radiowaves - ANSWER-MRI operates in the same electromagnetic energy range as ______. speed of light - ANSWER-All electromagnetic radiation travels at what speed? soft tissue contrast - ANSWER-What is the principle advantage of MRI over other medical imaging modalities? zero - ANSWER-Relative to CT, the ionizing radiation dose from MRI is ____. sensitivity - ANSWER-Which of the following terms describes how well an imaging system can detect subtle differences in anatomy? random - A...

Must be screened to guarantee their safety, as well as the safety of those around them. This includes patients,family members accompanying patients, technologists, radiologists, anesthesiologists, nurses, receptionists, cleaning staff, service engineers, and anybody else who might possibly enter the MR suite. - ANSWER-All individuals who have the potential to enter the MR suite: All the various implants, devices, accessories, and other objects that may cause problems in this setting. This req...

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MRI quiz 5 week 6