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相关概念视频

Computed Tomography01:10

Computed Tomography

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Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
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相关实验视频

Updated: May 10, 2025

A Finite Element Approach for Locating the Center of Resistance of Maxillary Teeth
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鼻评估:一个计算机断层扫描分析和分类.

Mohammad Waheed El-Anwar1, Mohamed Kamel Alawady2, Hoda Ismail Abdelhamid1

  • 1Department of Otorhinolaryngology, Head and Neck Surgery, Faculty of Medicine, Zagazig University, Zagazig, Egypt.

International archives of otorhinolaryngology
|April 28, 2025
PubMed
概括

计算机断层扫描 (CT) 揭示了上鼻解剖学的新分类,帮助外科医生. 这项研究确定了上鼻床,侧壁和轨道床的常见变异,这对于手术规划至关重要.

关键词:
这就是为什么CTCTCTCTCTCT内镜内腔外科手术是指内镜外科手术.上腺鼻 (maxillary sinus) 是一个上腺鼻.鼻子 鼻子 鼻子 鼻子轨道的地板是轨道的地板.

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科学领域:

  • 放射学 放射学是一门学科.
  • 耳鼻喉科 耳鼻喉科 耳鼻喉科
  • 人体解剖学 解剖学 解剖学

背景情况:

  • 术前评估上鼻子计算机断层扫描 (CT) 特征对于手术完整性至关重要.
  • 现有的分类可能不包括所遇到的所有解剖变异.

研究的目的:

  • 用CT扫描识别和分类以前未发表的上鼻变异.
  • 为了提高手术规划和沟通在耳鼻喉科.

主要方法:

  • 分析了110个鼻CT扫描 (220个侧面).
  • 使用了轴向,冠状和斜面的多平面重建.
  • 上鼻床,侧壁和轨道床变化的分类.

主要成果:

  • 大鼻地板:第一型 (53.2%),第二型 (29.1%),第三型 (10%),第四型 (7.7%).
  • 侧面大鼻壁:第一型 (32.7%),第二型 (65%),第三型 (2.3%).
  • 轨道地板:第1类 (0.9%),第2类 (21.3%),第3类 (50.5%),第4类 (27.3%). 在地板和侧墙上发现了显著的性别差异. 在22.7% (地板),16% (侧壁) 和30% (轨道地板) 观察到不对称性.

结论:

  • 该研究引入了基于CT发现的上鼻变异的新型分类.
  • 增加外科医生对这些变异的认识可以改善外科手术结果和患者安全.
  • 这些发现对于培训医疗人员进行内镜外科手术非常有价值.