ArticleSurgical and radiologic anatomy : SRA2025
Three-dimensional imaging anatomical study of the lateral opticocarotid recess and the accessory sphenoidal septum.
Article in Surgical and radiologic anatomy : SRA, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveThis study investigates the anatomical relationship between the lateral opticocarotid recess (LOCR) and the accessory sphenoidal septum (ASS) using three-dimensional reconstructed imaging anatomy to identify ASS ridge as a reliable landmark in locating indistinct LOCR during transsphenoidal surgery. MATERIALS AND
methodsWe selected 132 patients who underwent head CT and MRA scanning in our hospital between 2020 and 2022. Depending on their raw image data, we reconstructed the sphenoid sinus and simulated transsphenoidal approach view on three-dimensional reconstructed images. The anatomical relations between the LOCR and ASS ridge were observed and analyzed on the right and left sides. Then, we accurately located LOCR by the intersection between the ASS ridge or its prolongation line and the junction of the roof and outer wall of sphenoid sinus in locating the indistinct LOCR during 104 virtual and 22 actual endoscopic transsphenoidal operations.
resultsOn 264 sides of the three-dimensional reconstructed sphenoid sinus of 132 patients, LOCR was indistinguishable on 171 sides; among them, 104 sides with the presence of ASS on the same side. On 99 sides, the indistinct LOCR at the intersection of the ASS ridge or its prolongation line with the junction of the roof and outer wall of sphenoid sinus. In 22 actual operations, locations of all indistinct LOCRs by the ipsilateral ASS were consistent with them by neuronavigation.
conclusionLOCR has an intimate relationship with ipsilateral ASS, which helps in locating indistinct LOCR by ASS ridge or its prolongation line during the transsphenoidal sinus approach.
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