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/>
<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/>[[Image:paste-e4704de5cc965c137c39eec4c391aee4e7d9a70b.jpg]]
<br/>[[Image:paste-e4704de5cc965c137c39eec4c391aee4e7d9a70b.jpg]]
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<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

Paste-e4704de5cc965c137c39eec4c391aee4e7d9a70b.jpg
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.