Imaging & Radiology · Medical Imaging · Medium
Radiofrequency
Meaning: Electromagnetic waves used in MRI to excite hydrogen nuclei and generate a signal.
In practice: Pulses of radiofrequency energy tip the protons out of alignment with the magnetic field.
Quick check
Two questions on related imaging & radiology words.
Which word means: Sign where loss of a normal border indicates adjacent disease of similar density.
Answer: Silhouette
Which word means: Describes tissue on MRI giving the same signal brightness as a reference tissue.
Answer: Isointense
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