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

Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

214
Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
214
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

3
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...
3
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

197
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...
197
Computed Tomography01:10

Computed Tomography

4.3K
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...
4.3K
X-ray Imaging01:24

X-ray Imaging

5.4K
German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
5.4K
Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

86
Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
86

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 authorSame journal

Pelvic exenteration: The radiologist's role.

Radiologia·2026
Same author

Complications following radiofrequency ablation of the pulmonary veins. A radiologist's guide.

Radiologia·2026
Same author

Spectral computed tomography in abdominal and pelvic pathologies. A practical guide.

Radiologia·2024
Same author

Severe non-cardiovascular thoracic trauma: diagnostic clues on computed tomography.

Radiologia·2023
Same author

Should susceptibility-weighted imaging be included in the basic protocol for magnetic resonance imaging of the brain?

Radiologia·2020
Same author

Quantification of iodine concentration by dual-energy CT in patients with acute pancreatitis.

Radiologia·2020

相关实验视频

Updated: Jun 6, 2025

Novel In Vivo Micro-Computed Tomography Imaging Techniques for Assessing the Progression of Non-Alcoholic Fatty Liver Disease
08:41

Novel In Vivo Micro-Computed Tomography Imaging Techniques for Assessing the Progression of Non-Alcoholic Fatty Liver Disease

Published on: March 24, 2023

1.1K

多能CT和含的对比度.

A Villanueva Campos1, E Canales Lachén1, C Suevos Ballesteros1

  • 1Departamento de Radiología, Hospital Universitario Ramón y Cajal, Madrid, Spain.

Radiologia
|November 27, 2024
PubMed
概括

光谱CT成像利用双重能量光谱进行材料分解. 这允许减少辐射和对比介质剂量,同时保持诊断图像质量,有利于具有挑战性血管接入的患者.

科学领域:

  • 医疗成像医学成像
  • 放射学 放射学是一门学科.
  • 物理 物理学 物理

背景情况:

  • 光谱CT成像捕获两个不同的能量光谱的数据.
  • 这种技术利用光子相互作用 (光电效应,康普顿散射) 的差异进行材料分化.

研究的目的:

  • 探索在光谱CT中对比介质使用的优化.
  • 为了研究减少辐射剂量和对比度量的潜力.

主要方法:

  • 使用两个独立的能量光谱获取图像.
  • 基于能量依赖光子相互作用的材料分解分析.
  • 在光谱图上评估的行为.

主要成果:

  • 和高原子数物质在低能图像上呈现出高密度.
  • 优化的对比介质协议可以降低辐射剂量和减少对比体积.
  • 在对比度不佳的模糊化情况下,提高图像分辨率,可能避免重复扫描.

结论:

  • 光谱CT可促进物质的分解,增强诊断能力.
  • 该技术可以显著减少辐射和对比介质的使用.
关键词:
与众不同的代理商 (agentes de contraste).计算机断层扫描 (CT) 是一种计算机断层扫描.对比剂对比剂的使用方法对比媒介对比媒介.双重能源是什么意思这是双重能源.幽谱 幽谱是指光谱的部分.的是什么意思?我觉得这是一个很好的选择.一些对比媒介.频谱 频谱是指光谱的光谱.计算机断层扫描 (CT) 是一种计算机断层扫描.

更多相关视频

Contrast Enhanced Vessel Imaging using MicroCT
05:50

Contrast Enhanced Vessel Imaging using MicroCT

Published on: January 27, 2011

12.6K
High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
11:09

High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals

Published on: December 16, 2022

3.6K

相关实验视频

Last Updated: Jun 6, 2025

Novel In Vivo Micro-Computed Tomography Imaging Techniques for Assessing the Progression of Non-Alcoholic Fatty Liver Disease
08:41

Novel In Vivo Micro-Computed Tomography Imaging Techniques for Assessing the Progression of Non-Alcoholic Fatty Liver Disease

Published on: March 24, 2023

1.1K
Contrast Enhanced Vessel Imaging using MicroCT
05:50

Contrast Enhanced Vessel Imaging using MicroCT

Published on: January 27, 2011

12.6K
High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
11:09

High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals

Published on: December 16, 2022

3.6K
  • 光谱CT提供了更好的图像质量和工作流程效率,特别是对于血管接入不良的患者.