Surgical Measurement of the Sphenoid Sinus on Sagittal Reformatted CT in the Turkish Population

Abstract

Objective: The objectives of this study were to determine sinus measurements specific for the Turkish population using CT sagittal thin-slice reconstruction images and to clarify the three-dimensional anatomical features of the sphenoid sinus, along with its surrounding structures, that are relevant to performing an endoscopic sphenoidotomy. Materials and Methods:Images of 300 patients (165 female, 135 male) were studied. The research was conducted on the axial plane with a 1 mm slice thickness and a 0.6 mm slice interval, and sagittal reconstruction was performed with a 0.4 mm slice interval. Measurements of the sinus were obtained, and the presence of Onodi cells was researched.Results: Line 1 was found to be significantly shorter in the Turkish patients of this study compared to studies of other populations. Lines 4 and 6 were found to be longer on the left side (Line 4 right: 18.8±3.6 mm, left: 19.3±3.4 mm, p=0.027; Line 6 right: 24.1±6.8 mm, left: 24.3±6.8 mm, p=0.008). Lines 2, 3, 4 and 6 were longer in men than in women (p<0.05). Conclusion:In the Turkish population, Line 1 is shorter, so the risk of skull base perforation is greater. Lines 4 and 6 are longer on the left side; thus, choosing the left ostium in sinus dilation is safer. Because of sex differences regarding Lines 2, 3, 4 and 6, sex should be considered in sphenoid sinus procedures.

Prevalence of the Onodi cell in the Polish adult population: an anatomical computed tomography study

“…Ong [32] -15%, Anusha et al [2] -14.3%, Lupascu et al [22] -18% (noting that the presence of the Onodi cell is associated with a smaller dimension of the sphenoid sinuses) and Earwaker [5] -24%, of which bilateral cells were found in 9.36%. Similar results of the bilateral variant of the Onodi cell are presented by Kaplanoglu et al [18] -10.33%, however, giving a much higher incidence of unilateral incidence -44%. The different results may possibly be related to the analyzed ethnic group (Turkish).…”

“…accessory septae, deviated interspinous septae [32]. The ostia are found on the sphenoid bone's anterior aspect as a continuation of the sphenoethmoidal recess, and are closely associated with the posterior group of ethmoid air cells [11,18]. The Onodi cell is important due to its relation to several vital structures such as the optic nerve, internal carotid artery, among others.…”

Location of the Sphenoid Sinus Ostium in Relation to Adjacent Anatomical Landmarks

“…Other authors found the distance from the SO to the roof of sphenoid sinus to be less in the presence of Onodi cells. 11,20,21 This suggests that while the roof of the sphenoid may be pushed inferiorly by the Onodi cells, the distance of the ostium to the skull base was not affected.…”

“…Other authors found the distance from the SO to the roof of sphenoid sinus to be less in the presence of Onodi cells. 11,20,21 This suggests that while the roof of the sphenoid may be pushed inferiorly by the Onodi Figure 5. Examples of (A) medially located sphenoid ostium (note the lack of pneumatization of the rostrum), (B) mid-location of ostium on the horizontal plane, and (C) laterally located ostium on the left.…”

Khảo Sát Vị Trí Lỗ Thông Xoang Bướm Ở Người Trưởng Thành Trên Cắt Lớp Vi Tính

“…Đối với khoảng cách từ LTXB đến trần XB, kết quả của chúng tôi (7,9 ± 2,9 mm) có sự khác biệt với nghiên cứu của tác giả Halawi A.M. (11,2 ± 2,6 mm) [10]. Khoảng cách này ở nhóm có tế bào Onodi (4,2 ± 2,6 mm) ngắn hơn so với nhóm không (9,1 ± 1,9 mm), sự khác nhau này phù hợp với các nghiên cứu của Wu H.B [11], Kaplanoglu H. [12] và Hwang S.H. [13].…”