High yield radiology physics past paper questions with video answers
Perfect for testing yourself prior to your radiology physics exam 👇
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Today we will look at chemical shift and the chemical shift artifact. Chemical shift refers to the difference in processional frequencies between hydrogen atoms in water and fat. These differences are due to the slight differences in atomic level magnetic field strengths.
The chemical shift artifact is the artifact seen when fat is misregistered (predominantly in the frequency encoding direction) due to the slight difference in processional frequencies between water and fat. We will see how magnetic field strength, bandwidth and matrix size all affect chemical shift artifact and the trade-offs that changing these artifacts has on image quality.
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Not sure if the question banks are for you?
If you're here, you're likely studying for a radiology physics exam. I've spent the last few months collating past papers from multiple different countries selecting the most commonly asked questions. You'll be surprised how often questions repeat themselves!
The types of questions asked in FRCR, RANZCR AIT, ARRT, FC Rad Diag (SA), ABR qualifying Core Physics and MICR part 1 are surprisingly similar and the key concepts remain the same throughout. I've taken the most high-yield questions and answered them in video format so that I can take you through why certain answers are correct and others are not.
Happy studying,
Michael
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Негізгі бет Chemical Shift Artifact MRI | MRI Physics Course #14
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