Jove
Visualize
联系我们

相关概念视频

Positron Emission Tomography01:29

Positron Emission Tomography

4.1K
Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
4.1K
Computed Tomography01:10

Computed Tomography

4.4K
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...
4.4K
Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

105
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
105

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

Comparative accuracy of photon-counting and dual energy CT pulmonary angiography perfusion mapping using V/Q scans as reference standard.

Emergency radiology·2026
Same author

Toward Broader Clinical Adoption of Photon-Counting CT: Where We Stand According to High-Impact Literature.

Radiology·2026
Same author

ACR Appropriateness Criteria® Nonthrombotic Iliac Vein Lesion.

Journal of the American College of Radiology : JACR·2026
Same author

Nuclear Medicine Lymphoscintigraphy: Applications and Technical Overview.

Radiographics : a review publication of the Radiological Society of North America, Inc·2025
Same author

Coronary Plaque Quantification with Ultrahigh-Spatial-Resolution Photon-counting Detector CT: Intraindividual Comparison with Energy-integrating Detector CT.

Radiology·2025
Same author

Nuclear Cerebrospinal Fluid Imaging: Guide to Procedures and Interpretation.

Radiographics : a review publication of the Radiological Society of North America, Inc·2025
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

相关实验视频

Updated: Jun 21, 2025

Management of Respiratory Motion Artefacts in 18F-fluorodeoxyglucose Positron Emission Tomography using an Amplitude-Based Optimal Respiratory Gating Algorithm
06:53

Management of Respiratory Motion Artefacts in 18F-fluorodeoxyglucose Positron Emission Tomography using an Amplitude-Based Optimal Respiratory Gating Algorithm

Published on: July 23, 2020

5.6K

技术说明:光子计数CT可以提高PET/CT的定量精度吗?

James Hamill1, Noah Birge1, Jim O'Doherty2,3

  • 1Siemens Medical Solutions USA, Knoxville, Tennessee, USA.

Medical physics
|July 9, 2024
PubMed
概括
此摘要是机器生成的。

光子计数检测器CT (PCD-CT) 显著提高了对正子发射断层扫描与计算机断层扫描 (PET/CT) 结合成像的线性衰减系数 (LAC) 的准确性. 这种进步提高了定量准确性,特别是在对比剂施用后.

关键词:
在这里,PET是PET.减弱纠正的纠正减弱纠正用光子计数CTCT进行测试.

更多相关视频

Continuous Blood Sampling in Small Animal Positron Emission Tomography/Computed Tomography Enables the Measurement of the Arterial Input Function
10:21

Continuous Blood Sampling in Small Animal Positron Emission Tomography/Computed Tomography Enables the Measurement of the Arterial Input Function

Published on: August 8, 2019

8.3K
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

3.7K

相关实验视频

Last Updated: Jun 21, 2025

Management of Respiratory Motion Artefacts in 18F-fluorodeoxyglucose Positron Emission Tomography using an Amplitude-Based Optimal Respiratory Gating Algorithm
06:53

Management of Respiratory Motion Artefacts in 18F-fluorodeoxyglucose Positron Emission Tomography using an Amplitude-Based Optimal Respiratory Gating Algorithm

Published on: July 23, 2020

5.6K
Continuous Blood Sampling in Small Animal Positron Emission Tomography/Computed Tomography Enables the Measurement of the Arterial Input Function
10:21

Continuous Blood Sampling in Small Animal Positron Emission Tomography/Computed Tomography Enables the Measurement of the Arterial Input Function

Published on: August 8, 2019

8.3K
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

3.7K

科学领域:

  • 医学成像物理 医学成像物理
  • 辐射科学 辐射科学
  • 核医学 技术 技术 核医学

背景情况:

  • 在PET/CT中,线性衰减系数 (LAC) 通常是从能量整合检测器CT (EID-CT) 衍生出来的,但与对比是不准确的.
  • 光子计数探测器CT (PCD-CT) 提供了提高LAC精度的潜力.

研究的目的:

  • 评估PCD-CT是否可以提高PET/CT扫描的定量准确性.
  • 评估PCD-CT对LAC准确性的影响,特别是在有对比剂的情况下.

主要方法:

  • 进行了两项实验:仅CT的幻影研究和PET/CT联合幻影研究.
  • 使用EID-CT和PCD-CT从模拟人体组织的幻影中获得LAC,包括骨和含的血液.
  • 使用来自EID-CT和PCD-CT的LAC重建了PET图像,通过恢复系数 (RC) 评估定量准确性.

主要成果:

  • 来自PCD-CT的LAC显示最大误差为3%,而EID-CT的误差高达18%.
  • 使用PCD-CT提高了PET的定量准确性,由更一致的恢复系数表明 (EID-CT的平均RC为101.0%与103.8%相比).
  • 使用PCD-CT,提高了身体和头部方向的图像一致性.

结论:

  • PCD-CT在单次采购中为PET重建提供准确的LAC信息.
  • 这项技术有望提高PET/CT成像的定量性能.