Difference between revisions of "MRI-TERMINOLOGY"
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===== [[Summary Article|'''SUMMARY''']] ===== | ===== [[Summary Article|'''SUMMARY''']] ===== | ||
When describing most MRI sequences we refer to the shade of grey of tissues or fluid with the word intensity, leading to the following absolute terms: | When describing most MRI sequences we refer to the shade of grey of tissues or fluid with the word intensity, leading to the following absolute terms: | ||
<br/>1. High signal intensity ⟹ white | <br/>1. High signal intensity ⟹ white | ||
<br/>2. Intermediate signal intensity ⟹ grey | <br/>2. Intermediate signal intensity ⟹ grey | ||
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<br/> | <br/> | ||
<br/>[[Image:paste-e4704de5cc965c137c39eec4c391aee4e7d9a70b.jpg]] | <br/>[[Image:paste-e4704de5cc965c137c39eec4c391aee4e7d9a70b.jpg]] | ||
<br/><i>Images: The above images shows a lesion that is isointense on T1W on the left, and hyperintense on T1W with gadolinium on the right.</i> | <br/><i>Images: The above images shows a lesion that is isointense on T1W on the left, and hyperintense on T1W with gadolinium on the right.</i> | ||
Revision as of 10:45, 24 July 2023
SUMMARY
When describing most MRI sequences we refer to the shade of grey of tissues or fluid with the word intensity, leading to the following absolute terms:
1. High signal intensity ⟹ white
2. Intermediate signal intensity ⟹ grey
3. Low signal intensity ⟹ black
Often we refer to the appearance by relative terms:
1. Hyperintense ⟹ brighter than the thing we are comparing it to
2. Isointense ⟹ same brightness as the thing we are comparing it to
3. Hypointense ⟹ darker than the thing we are comparing it to
Images: The above images shows a lesion that is isointense on T1W on the left, and hyperintense on T1W with gadolinium on the right.
Reference(s)
Furman, Michael B., and Leland Berkwits. Atlas of Image-Guided Spinal Procedures. Elsevier, Inc, 2017.
Horowitz AL. MRI Physics for Physicians. Springer Science & Business Media. (1989) ISBN:1468403338.
Mangrum W, Christianson K, Duncan S et-al. Duke Review of MRI Principles. Mosby. (2012) ISBN:1455700843.
