Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Computed Tomography01:10

Computed Tomography

4.6K
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...
4.6K
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

41
Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
41
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

26
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
26
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

275
Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
275

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Leveraging modality-guided pre-training for dual-prompt-driven multi-cancer PET-CT segmentation.

Medical image analysis·2026
Same author

Towards robust foundation models for digital pathology.

Nature communications·2026
Same author

Tumor-preserving Deformable Registration of Longitudinal DCE Breast MRI during Neoadjuvant Chemotherapy.

Radiology. Artificial intelligence·2026
Same author

Bilateral Dynamic CT for Scapholunate Instability: Toward Personalized, Protocol-Standardized Kinematic Diagnosis.

Plastic and reconstructive surgery·2026
Same author

Development and internal validation of mammography feature-based prognostic models for distant recurrence-free survival of invasive breast cancer in a screening cohort.

NPJ breast cancer·2026
Same author

Quantitative CT Perfusion as a prognostic biomarker for chemotherapy response in patients with pancreatic ductal adenocarcinoma.

Abdominal radiology (New York)·2026

相关实验视频

Updated: Jul 17, 2025

Author Spotlight: An Efficient and Robust Software for Automated Fusion of Multiple Preclinical Imaging Modalities
07:13

Author Spotlight: An Efficient and Robust Software for Automated Fusion of Multiple Preclinical Imaging Modalities

Published on: October 27, 2023

1.2K

开发,验证和简化一个扫描仪特定的CT模拟器.

Sjoerd A M Tunissen1, Luuk J Oostveen1, Nikita Moriakov1,2

  • 1Department of Medical Imaging, Radboudumc, Nijmegen, The Netherlands.

Medical physics
|September 1, 2023
PubMed
概括
此摘要是机器生成的。

这项研究开发了一种现实的计算机断层扫描 (CT) 模拟工具. 简化模拟显著降低了计算需求,同时保持了算法测试的图像现实性.

关键词:
这就是为什么CTCTCTCTCTCT计算机模拟的计算机模拟.系统表征系统的表征.

更多相关视频

Author Spotlight: Advancing Human Brain Modulation – Optimized Protocols for Transcranial Ultrasound Stimulation Experiments
07:52

Author Spotlight: Advancing Human Brain Modulation – Optimized Protocols for Transcranial Ultrasound Stimulation Experiments

Published on: June 28, 2024

1.2K
Author Spotlight: Enhancing Accuracy and Reproducibility in Whole Bone Bending Tests
04:20

Author Spotlight: Enhancing Accuracy and Reproducibility in Whole Bone Bending Tests

Published on: September 1, 2023

875

相关实验视频

Last Updated: Jul 17, 2025

Author Spotlight: An Efficient and Robust Software for Automated Fusion of Multiple Preclinical Imaging Modalities
07:13

Author Spotlight: An Efficient and Robust Software for Automated Fusion of Multiple Preclinical Imaging Modalities

Published on: October 27, 2023

1.2K
Author Spotlight: Advancing Human Brain Modulation – Optimized Protocols for Transcranial Ultrasound Stimulation Experiments
07:52

Author Spotlight: Advancing Human Brain Modulation – Optimized Protocols for Transcranial Ultrasound Stimulation Experiments

Published on: June 28, 2024

1.2K
Author Spotlight: Enhancing Accuracy and Reproducibility in Whole Bone Bending Tests
04:20

Author Spotlight: Enhancing Accuracy and Reproducibility in Whole Bone Bending Tests

Published on: September 1, 2023

875

科学领域:

  • 医疗成像医学成像
  • 计算的幻影 计算的幻影
  • 图像模拟图像的模拟

背景情况:

  • 模拟CT图像提供地面真实性和对成像条件的控制,非常适合算法开发.
  • 完整的CT模拟是计算密集型的,需要对效率的简化进行研究.
  • 现实的模拟对于验证新的CT应用程序和重建算法至关重要.

研究的目的:

  • 使用基于物理和图像损坏方法创建扫描器特定的CT模拟.
  • 评估模拟简化对图像现实性和计算成本的影响.
  • 开发一种用于CT重建和后处理算法的定量分析工具.

主要方法:

  • 开发了一个特定于扫描仪的CT模拟器,包含有限的焦点,射线追踪,门廊旋转和探测器效应.
  • 与真实CT扫描对比验证模拟图像,使用CT数量,噪声功率频谱和调制转移函数等指标.
  • 通过降低亚抽样水平和分析调制转移函数的变化来研究模拟简化.

主要成果:

  • 在空间分辨率 (3.4%),噪声大小 (3.3%) 和噪声频率 (4.9%) 中实现了较低的平均相对误差.
  • 在CT数字中,平均绝对差异为10.2 HU,最高为22.5 HU.
  • 模拟简化,不包括角度子采样,在10%的调制转移函数时,导致最大16.3%的误差.

结论:

  • 一个经过验证的扫描器特定的CT模拟,结合基于物理和腐败的方法,产生真实的图像.
  • 该模拟工具为CT算法的定量分析提供了基本真相.
  • 选择性模拟简化减少了计算要求,对图像现实性的影响最小.