Investigation of Distances Between the Anterior Nasal Spine and Nasofrontal Beak, Basal Lamella, Skull Base, and Sphenoid Sinus on Paranasal Sinus Computed Tomography

2018 ◽  
Vol 29 (7) ◽  
pp. e647-e648
Author(s):  
Yalcin Alimoglu ◽  
Adem Topcu
Keyword(s):  
Computed Tomography ◽  
Skull Base ◽  
Paranasal Sinus ◽  
Sphenoid Sinus ◽  
Anterior Nasal Spine ◽  
Paranasal Sinus Computed Tomography

Analysis of Ethmoid Roof and Skull Base With Coronal Section Paranasal Sinus Computed Tomography

2012 ◽  
Vol 23 (5) ◽  
pp. 1460-1464 ◽  
Author(s):  
Cemil Güler ◽  
İsmail Önder Uysal ◽  
Kerem Polat ◽  
İsmail Şalk ◽  
Togay Müderris ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Skull Base ◽  
Paranasal Sinus ◽  
Coronal Section ◽  
Paranasal Sinus Computed Tomography

scholarly journals The Whole Lateral Type of the Sphenoethmoidal Cell and Its Relevance to Endoscopic Sinus Surgery

2020 ◽  
pp. 014556132092211
Author(s):  
Jinfeng Liu ◽  
Jingjing Yuan ◽  
Jinsheng Dai ◽  
Ningyu Wang
Keyword(s):  
Computed Tomography ◽  
Paranasal Sinus ◽  
Sphenoid Sinus ◽  
Sinus Surgery ◽  
Great Similarity ◽  
Maxillary Nerve ◽  
Imaging Characteristics ◽  
Anatomical Imaging ◽  
Onodi Cell ◽  
Paranasal Sinus Computed Tomography

Background: The sphenoethmoidal cell and the sphenoid sinus (SS) show great similarity in endoscopy and imaging. Hence, it is important to accurately identify the sphenoethmoidal cell preoperatively to prevent injury of the nerve and artery during endoscopic surgery. The aim of the present study was to investigate a special type of sphenoethmoidal cell. Methods: A total of 365 inpatients whose paranasal sinus computed tomography (CT) was collected and reviewed from May 2018 to September 2019 were included. The anatomical imaging characteristics of the sphenoethmoidal cell were observed. Results: A special type of the sphenoethmoidal cell was found on 9 sides in 730 sides (1.3%), according to its extension to the SS. Unlike Onodi cell (49.6%) and Jinfeng cell (1.3%), this cell simultaneously extends toward the superolateral, lateral, and inferolateral regions of the SS and is simultaneously closely attached to the optic canal and the maxillary nerve. Presently, this cell is named as the whole lateral type of the sphenoethmoidal cell, and the SS is located at the medial or inferomedial of it. Conclusions: When evaluating the paranasal sinus CT preoperatively, attention must be paid to the possibility of the whole lateral type of sphenoethmoidal cell appearing, not just Onodi cell, extending into the SS.

scholarly journals Inter-observer agreement of paranasal sinus computed tomography scans

2016 ◽  
Vol 137 (6) ◽  
pp. 611-617 ◽  
Author(s):  
Anna Julkunen ◽  
Emma Terna ◽  
Jura Numminen ◽  
Antti Markkola ◽  
Prasun Dastidar ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Paranasal Sinus ◽  
Observer Agreement ◽  
Computed Tomography Scans ◽  
Paranasal Sinus Computed Tomography

Reliability of High-Pitch Ultra-Low-Dose Paranasal Sinus Computed Tomography for Evaluating Paranasal Sinus Anatomy and Sinus Disease

2014 ◽  
Vol 25 (5) ◽  
pp. 1801-1804 ◽  
Author(s):  
Elif Ayanoglu Aksoy ◽  
Sila Ulus Özden ◽  
Ercan Karaarslan ◽  
Ömer Faruk Ünal ◽  
Hasan Tanyeri
Keyword(s):  
Computed Tomography ◽  
Paranasal Sinus ◽  
Low Dose ◽  
High Pitch ◽  
Sinus Disease ◽  
Paranasal Sinus Computed Tomography

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

2019 ◽  
Vol 7 (5) ◽  
pp. 1445
Author(s):  
Abdul Haseeb Wani ◽  
Yassar Shiekh ◽  
Arshed Hussain Parry ◽  
Zahid Qayoom
Keyword(s):  
Computed Tomography ◽  
Skull Base ◽  
Sphenoid Sinus ◽  
Anatomical Variations ◽  
Carotid Canal ◽  
Preoperative Ct ◽  
Kashmiri Population ◽  
Glandular Structures ◽  
The Right ◽  
Age Range

Background: 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.

Paranasal sinus computed tomography anatomy: a surgeon's perspective

2011 ◽  
Vol 125 (11) ◽  
pp. 1141-1147 ◽  
Author(s):  
Y Ramakrishnan ◽  
I Zammit-Maempel ◽  
N S Jones ◽  
S Carrie
Keyword(s):  
Computed Tomography ◽  
Paranasal Sinus ◽  
Operative Management ◽  
Functional Endoscopic Sinus Surgery ◽  
Sinus Surgery ◽  
Systematic Evaluation ◽  
Assessment Technique ◽  
Radiological Features ◽  
Computed Tomography Scans ◽  
Paranasal Sinus Computed Tomography

AbstractComputed tomography scans serve as a critical ‘roadmap’ for functional endoscopic sinus surgery. A systematic evaluation of such scans, and an awareness of any anatomical variants that may modify one's surgical approach, allow one to pre-empt complications. This article describes, from a novice's perspective, two methods of evaluating paranasal sinus computed tomography scans: a quick assessment technique; and a step-wise, operative approach covering radiological features relevant to pre- and peri-operative management.

scholarly journals Triple-Divided Concha Bullosa: A New Anatomic Variation

2013 ◽  
Vol 2013 ◽  
pp. 1-3 ◽  
Author(s):  
Turhan San ◽  
Barış Erdoğan ◽  
Bülent Taşel
Keyword(s):  
Computed Tomography ◽  
Paranasal Sinus ◽  
Imaging Techniques ◽  
Anatomic Variation ◽  
Middle Turbinate ◽  
Anatomical Variations ◽  
Concha Bullosa ◽  
Paranasal Sinus Computed Tomography

In recent years, with the widespread use of imaging techniques such as paranasal sinus computed tomography (CT), many variations of nasal turbinates have been described. One of these variations known as concha bullosa (CB) is pneumatization of nasal turbinates. CB is the most frequently encountered anatomical variations of the middle turbinate. The term of septated concha bullosa has been described recently and it is an uncommon pneumatization anomaly of the middle turbinate. There has not been any study that correlates the number of septations and the presence of sinonasal pathologies. We hereby present a case of triple septated concha bullosa that has not been reported so far.

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