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Anat Cell Biol

Published online July 10, 2020

https://doi.org/10.5115/acb.20.041

Copyright © Korean Association of ANATOMISTS.

Intraluminal anatomy of the transverse sinus: implications for endovascular therapy

Juan J. Altafulla1 , Joshua Prickett2 , Joe Iwanaga3,4 , Aaron S. Dumont3 , R. Shane Tubbs3,5,6,7

1Department of Neurosurgery, Hospital Santo Tomas, Panamá, Panama, 2Aiken Regional Medical Centers, Aiken, SC, 3Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA, 4Division of Gross and Clinical Anatomy, Department of Anatomy, Kurume University School of Medicine, Kurume, Japan, 5Department of Anatomical Sciences, St. George’s University, St. George’s, Grenada, 6Department of Neurosurgery and Ochsner Neuroscience Institute, Ochsner Health System, New Orleans, LA, 7Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, LA, USA

Correspondence to:Joe Iwanaga
Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA 70112, USA
E-mail: iwanagajoeca@gmail.com

Received: February 26, 2020; Revised: April 22, 2020; Accepted: April 27, 2020

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Trabeculae or septations in the transverse sinus can have potentially life-threatening clinical significance. The current study demonstrates trabecula/septum patterning within the transverse sinus with measurements and distribution data supplemented by imaging, and describes the possible etiology of idiopathic intracranial hypertension and turbulent blood flow in the transverse sinus. Twenty-four sides from 12 cadaveric heads, all fresh-frozen, were used (five males, seven females; age at death 65–91 years, mean 79.1 years). The length and diameter of the transverse sinus were measured along with the number and locations of septations/trabeculae and their tensile strength. The mean length of the transverse sinus was 68.43 mm on the right side and 74.31 mm on the left. A total of 42 septations were found in the 24 transverse sinuses. The number of septations per side ranged from zero to four with a mean of 1.75. The septations were located in the proximal 1/3 in 54.8% (23/42), the middle 1/3 in 21.4% (9/42), and the distal 1/3 in 23.8% (10/42). The work presented here furthers our understanding of transverse sinus anatomy, including its detailed internal architecture. The measurements can provide a technical guide for neurosurgeons and influence instrument selection when a large thrombus forms or anchors in one of these trabeculae or septa and necessitates treatment.

Keywords: Transverse sinus, Septations, Trabeculae, Idiopathic intracranial hypertension, Papilledema

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