Radiological relations of sigmoid sinus with oto-neuro-surgical landmarks with its surgical risk-stratification indicating classification.

IF 2.2 3区 医学 Q2 OTORHINOLARYNGOLOGY
Manu Malhotra, Abhishek Bhardwaj, Madhu Priya, Pankaj Sharma, Sofia Doomra, P S Suji, Rajneesh Arora, Rashmi Malhotra
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引用次数: 0

Abstract

Objective: Detailed pre-operative HRCT scan-based measurement of the distance between surgical landmarks with lateral or sigmoid sinus (SS) and classification of its relations with surgical landmarks.

Study design: Observational Study.

Setting: Tertiary care center.

Patients: Patient volunteers above 18 years of age undergoing scans for various reasons.

Interventions: Axial Sections of HRCT of 260 temporal bones obtained from patient volunteers were studied with the help of RadiAnt DICOM Viewer (version 2023.1).

Main outcome measures: Closest distance of the SS from the posterior wall of the external auditory canal wall (CW), the vertical portion of the facial nerve (VPFN), the short process of incus (SPI), lateral (LC), and posterior semi-circular canal (PC), was measured. The SS relation with the mastoid was classified as type 1-4 depending upon the shortest distance of the sinus from the posterior canal wall millimeters.

Results: The mean distance of the SS from surgical landmarks was 14.6 ± 2.7 mm for SPI, 11.1 ± 3.1 for CW, 11.4 ± 2.9 for VPFN, 10.1 ± 2.8 for PC, and 11.9 ± 2.7 LC. All measured distances were significantly more on the left side (p < 0.05, Z test), except the difference in distance from LC. The greatest range of variation (5.2 to 21.8 mm) was seen in the distance between SS and VPFN. The most common type of relationship between SS and CW was type 3, present in 64% of subjects, while the least common group was type 1, with nearly 1% of subjects.

Conclusion: The assessment of distances and relations of various surgical landmarks with SS, with the proposed novel classification based on SS-CW distance, can be essential for preoperative planning and risk mitigation.

Level of evidence: 3:

乙状窦与耳神经外科标志的放射学关系及其手术风险分层指示分类。
目的:详细的术前HRCT扫描测量手术标志与外侧或乙状窦(SS)之间的距离及其与手术标志的关系分类。研究设计:观察性研究。环境:三级保健中心。患者:患者志愿者年龄在18岁以上,因各种原因接受扫描。干预措施:在RadiAnt DICOM Viewer (version 2023.1)的帮助下,对260例患者志愿者颞骨的HRCT轴向切片进行了研究。主要观察指标:测量SS离外耳道壁后壁(CW)的最近距离、面神经垂直部分(VPFN)、incus短突(SPI)、外侧(LC)和后半圆管(PC)。根据鼻窦距后管壁毫米的距离,将与乳突的SS关系分类为1-4型。结果:SPI离手术标志的平均距离为14.6±2.7 mm, CW为11.1±3.1 mm, VPFN为11.4±2.9 mm, PC为10.1±2.8 mm, LC为11.9±2.7 mm。结论:评估各种手术标志与SS的距离和关系,以及基于SS- cw距离提出的新分类,对于术前规划和降低风险至关重要。证据等级:3;
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
5.30
自引率
7.70%
发文量
537
审稿时长
2-4 weeks
期刊介绍: Official Journal of European Union of Medical Specialists – ORL Section and Board Official Journal of Confederation of European Oto-Rhino-Laryngology Head and Neck Surgery "European Archives of Oto-Rhino-Laryngology" publishes original clinical reports and clinically relevant experimental studies, as well as short communications presenting new results of special interest. With peer review by a respected international editorial board and prompt English-language publication, the journal provides rapid dissemination of information by authors from around the world. This particular feature makes it the journal of choice for readers who want to be informed about the continuing state of the art concerning basic sciences and the diagnosis and management of diseases of the head and neck on an international level. European Archives of Oto-Rhino-Laryngology was founded in 1864 as "Archiv für Ohrenheilkunde" by A. von Tröltsch, A. Politzer and H. Schwartze.
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