Anatomical variations of intra-sphenoid sinus septations in a sample of Kashmiri population: a non-contrast computed tomography study

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dc.contributor.authorWani, Abdul Haseeben_US
dc.contributor.authorShiekh, Yassaren_US
dc.contributor.authorParry, Arshed Hussainen_US
dc.contributor.authorQayoom, Zahiden_US
dc.date.accessioned2020-11-18T09:58:23Z
dc.date.available2020-11-18T09:58:23Z
dc.date.issued2019-05
dc.description.abstractBackground: The sphenoid sinus shows multitude of variations in pneumatization, size and pattern of septations leading to differences in its segmentation. Pre-operative knowledge of their attachment especially to posterolateral bony walls covering vital structures is of utmost importance for a safe trans-sphenoidal approach for various surgical procedures involving skull base. Non-contrast computed tomography (NCCT) with its ability to provide multiplanar reformations (MPR) with sharp algorithms is now a reference standard for visualization of these intra-sphenoid sinus septations preoperatively. The objective of this study was to determine the number and attachment of intra-sphenoid sinus septations in a Kashmiri population sample.Methods: NCCT head images of 591 patients in the age range of 16 to 75 years were analyzed retrospectively. Individuals with age less than 16 years, previous surgery involving skull base/sphenoid sinus, trauma causing hem sinus/fractures around skull base or having space occupying lesions around skull base/sphenoid sinus were excluded from the study. On the CT workstation multi-planar coronal, sagittal and axial reconstructions were performed and subsequently examined.Results: The age range was 16 to 75 years with mean age of 43.56 years of which 453 (76.6%) were males and 138 (23.4%) were females. Single intra-sphenoid septation was the most common anatomic variant in present study (79.7%) being complete in 71.7% and partial or incomplete in 8% of the examined subjects. Double septa were found in 11% inpresent study and more than 2 septae in 3.4%. After sellar attachment (51%) the next most common site of attachment was to the carotid canal (29.5%) (23% to left ICA and 6.5% to the right ICA).Conclusions: Intricate knowledge about sphenoid sinus, its pneumatization and anatomical variations in intra-sphenoid sinus septations and its relationship with the surrounding vital structures is of utmost importance before performing any endoscopic/open surgery involving skull base via trans-sphenoidal approach. The present study shows that a significant percentage of septal attachment to the carotid canal makes main sphenoidal septum as not so reliable landmark for endoscopic procedures as used to be in the pre-imaging era. Thus, preoperative CT is mandatory to avoid injuries to para-sellar neurovascular and glandular structures.en_US
dc.identifier.affiliationsDepartment of Radiodiagnosis, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, Indiaen_US
dc.identifier.affiliationsDepartment of Radiodiagnosis, Government Medical College Srinagar, Jammu and Kashmir, Indiaen_US
dc.identifier.citationWani Abdul Haseeb, Shiekh Yassar, Parry Arshed Hussain, Qayoom Zahid. Anatomical variations of intra-sphenoid sinus septations in a sample of Kashmiri population: a non-contrast computed tomography study. International Journal of Research in Medical Sciences. 2019 May; 7(5): 1445-1449en_US
dc.identifier.issn2320-6071
dc.identifier.issn2320-6012
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/211301
dc.languageenen_US
dc.publisherMedip Academyen_US
dc.relation.issuenumber5en_US
dc.relation.volume7en_US
dc.source.urihttps://dx.doi.org/10.18203/2320-6012.ijrms20191525en_US
dc.subjectComputed tomographyen_US
dc.subjectIntra sphenoid sinusen_US
dc.subjectIntra-sphenoid sinus septationen_US
dc.subjectMulti-planar reformationen_US
dc.subjectPara-sellaren_US
dc.subjectTrans-nasal trans-sphenoid surgeryen_US
dc.titleAnatomical variations of intra-sphenoid sinus septations in a sample of Kashmiri population: a non-contrast computed tomography studyen_US
dc.typeJournal Articleen_US
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