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Computed Tomography

Computed Tomography

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: Jun 25, 2025

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration

Four-Dimensional CT Analysis Using Sequential 3D-3D Registration

Published on: November 23, 2019

Normscan:开源的Python软件,可以从CT扫描中创建平均模型.

George R Nahass^1,2,3, Mitchell A Marques^1,2, Naji Bou Zeid¹

¹Division of Plastic, Reconstructive, and Cosmetic Surgery, The Craniofacial Center, University of Illinois at Chicago, 811 S Paulina St., Chicago, IL, 60612, USA.

International journal of computer assisted radiology and surgery

|May 20, 2024

概括

此摘要是机器生成的。

从CT扫描生成准确的3D平均头骨模型,用于手术规划. 这种开源平台简化了为临床使用创建特定患者的解剖模型.

关键词:

平均模型生成的时间.头骨突发症是什么头骨突发症是什么神经外科神经外科整形外科手术整形外科手术在这里,Python是Python.手术规划手术规划

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Published on: April 25, 2017

Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized 129Xe MRI to Evaluate Lung Structure-Function

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Last Updated: Jun 25, 2025

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科学领域:

医疗成像医学成像
计算解剖学的计算解剖学
3D 建模 3D 建模

背景情况:

年龄相匹配的平均3D模型对于手术规划和手术内指导在治疗头骨先天缺陷,如头骨突症的治疗中至关重要.
目前的方法往往需要大量的用户输入,并且可能不易适应临床应用.

研究的目的:

开发一种算法,从任何数量的计算机断层扫描 (CT) 扫描中生成高精度的平均3D头骨模型,用户干预最小.
创建一个开源平台,Normscan,用于生成适合3D打印和临床使用的这些规范性解剖模型.

主要方法:

Normscan利用儿科CT扫描数据库和用户定义的解剖学地标 (basion, nasion, porions) 进行初始模型对应.
在模型注册中使用代的最接近点算法,其次是下游平均,以创建最终的规范模型.

主要成果:

在多个试验中,Normscan成功生成了高度准确和可重复的平均3D头骨模型,表面积和体积的方差系数低于3%.
该平台提供了一个用户友好的界面,能够快速创建准备用于3D打印和增强现实可视化的模型.

结论:

诺姆斯坎为生成平均头骨模型提供了一个全面的管道,对于创建人口特异性解剖数据库非常有价值.
生成的模型作为手术规划和手术内指导的基本工具,具有超出突修复范围的广泛应用.