File:Midbrain to pons area ratio as described by Oba et al (Radiopaedia 27991).jpg

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Summary:

Radiopaedia case ID: 27991
Image ID: 6092256
Study findings: In the method described by Oba et al the area of the midbrain and pons are calculated and the ratio midbrain : pons obtained 1. The pontomesencephalic junction is defined by a line between the superior pontine notch (A) and the inferior border of the quadrigeminal plate (B). The pontomedullary junction is defined by a line parallel to the first line, at the level of the inferior pontine notch. A normal value is approximately 0.24 where as it is significantly reduced in PSP to 0.12 1. Diagram by Frank Gaillard.
Modality: Diagram
System: Central Nervous System
Findings: In the method described by Oba et al the area of the midbrain and pons are calculated and the ratio midbrain : pons obtained 1. The pontomesencephalic junction is defined by a line between the superior pontine notch (A) and the inferior border of the quadrigeminal plate (B). The pontomedullary junction is defined by a line parallel to the first line, at the level of the inferior pontine notch. A normal value is approximately 0. 24 where as it is significantly reduced in PSP to 0. 12 1. Diagram by Frank Gaillard.
Published: 3rd Mar 2014
Source: https://radiopaedia.org/cases/midbrain-to-pons-area-ratio-as-described-by-oba-et-al
Author: Frank Gaillard
Permission: http://creativecommons.org/licenses/by-nc-sa/3.0/

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	12:41, 24 March 2021		739 × 739 (67 KB)	Fæ	Radiopaedia project rID:27991 (batch #22840)

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