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Surgical and Radiologic Anatomy

Published in:

08-01-2024 | Magnetic Resonance Imaging | Original Article

Diameters of the optic sheath and superior ophthalmic vein can expand and contract at positional changes: a magnetic resonance imaging study

Authors: Satoshi Tsutsumi, Satoru Kawai, Natsuki Sugiyama, Hideaki Ueno, Michimasa Suzuki, Hisato Ishii

Published in: Surgical and Radiologic Anatomy | Issue 2/2024

Abstract

Purpose

This study aimed to explore the diameters of the optic sheath (OSD) and superior ophthalmic vein (SOVD) in response to positional changes using magnetic resonance imaging (MRI).

Materials and methods

Fifty adult outpatients who presented to the hospital underwent thin-slice coronal T2-weighted MRI in the supine position followed by the prone position.

Results

The OS and SOV were well delineated in all the patients. The OSD in the anterior orbit was measured in the supine and prone positions on both sides. In addition, the SOVD in the anterior and posterior orbits was measured in the supine and prone positions on both sides. The OSD demonstrated an increase on both sides in 100% of the cases. The SOVD demonstrated an increase on both sides in 94% of the cases, whereas the remaining 6% demonstrated a decrease. The OSD measured at the anterior orbit and the SOVD at the anterior and posterior orbits significantly increased on both sides with positional changes from the supine to the prone position.

Conclusion

OSD and SOVD may expand and contract in response to alterations in the intracranial pressure and venous flow patterns. MRI examination in the supine position combined with positional changes can help to better understand the OS and SOV as dynamic structures.

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Title: Diameters of the optic sheath and superior ophthalmic vein can expand and contract at positional changes: a magnetic resonance imaging study
Authors: Satoshi Tsutsumi
Satoru Kawai
Natsuki Sugiyama
Hideaki Ueno
Michimasa Suzuki
Hisato Ishii
Publication date: 08-01-2024
Publisher: Springer Paris
Keywords: Magnetic Resonance Imaging
Magnetic Resonance Imaging
Intracranial Hypertension
Published in: Surgical and Radiologic Anatomy / Issue 2/2024
Print ISSN: 0930-1038
Electronic ISSN: 1279-8517
DOI: https://doi.org/10.1007/s00276-023-03281-x

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Springer Medicine

Diameters of the optic sheath and superior ophthalmic vein can expand and contract at positional changes: a magnetic resonance imaging study

Abstract

Purpose

Materials and methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Materials and methods

Results

Conclusion

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