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

NMR Spectrometers: Resolution and Error Correction01:14

NMR Spectrometers: Resolution and Error Correction

When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...
Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Computed Tomography01:10

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...
Positron Emission Tomography01:29

Positron Emission Tomography

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 being...
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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...

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

Imaging foundation model for universal enhancement of non-ideal measurement CT.

Nature communications·2026
Same author

Heterogeneous trajectories of family resilience and their predictors among family caregivers of older adults receiving maintenance hemodialysis: a longitudinal study.

BMC nephrology·2026
Same author

The current and future landscape of AI foundation models for cancer management.

Nature communications·2026
Same author

MILU: a consensus ensemble benchmark for multimodal medical imaging lecture understanding.

Journal of medical imaging (Bellingham, Wash.)·2026
Same author

MEDI-SLATE: medical imaging slide-lecture aligned teaching ensemble.

Visual computing for industry, biomedicine, and art·2026
Same author

Manifold topological deep learning for biomedical data.

Nature communications·2026

相关实验视频

Updated: May 7, 2026

Quantifying Intermembrane Distances with Serial Image Dilations
07:45

Quantifying Intermembrane Distances with Serial Image Dilations

Published on: September 28, 2018

6.4K

基于补丁的双域光子计数CT数据校正与基于残余的WGAN-ViT.

Bahareh Morovati1, Mengzhou Li2, Shuo Han1

  • 1Department of Electrical and Computer Engineering, University of Massachusetts Lowell, Lowell, MA 01854, United States of America.

Physics in medicine and biology
|January 28, 2025
PubMed
概括

本研究引入了一种用于光子计数计算机断层扫描 (PCCT) 的双域校正方法,以提高图像质量. 这种方法有效地减少了文物和噪音,提高了医学成像诊断的准确性.

关键词:
在电视上拒绝恶意宣传.瓦斯斯坦的生成对抗网络 (WGAN)有导向的过器.用光子计数CTCT进行测试.剩余区块是一个残留区块.变压器变压器变压器变压器

更多相关视频

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

1.0K
Author Spotlight: Enhanced Quantification of Cardiovascular Calcification Progression for Longitudinal Micro PET/CT Studies in Small Research Animals
08:02

Author Spotlight: Enhanced Quantification of Cardiovascular Calcification Progression for Longitudinal Micro PET/CT Studies in Small Research Animals

Published on: November 15, 2024

504

相关实验视频

Last Updated: May 7, 2026

Quantifying Intermembrane Distances with Serial Image Dilations
07:45

Quantifying Intermembrane Distances with Serial Image Dilations

Published on: September 28, 2018

6.4K
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

1.0K
Author Spotlight: Enhanced Quantification of Cardiovascular Calcification Progression for Longitudinal Micro PET/CT Studies in Small Research Animals
08:02

Author Spotlight: Enhanced Quantification of Cardiovascular Calcification Progression for Longitudinal Micro PET/CT Studies in Small Research Animals

Published on: November 15, 2024

504

科学领域:

  • 医学成像物理 医学成像物理
  • 计算成像技术的成像
  • 辐射技术 辐射技术

背景情况:

  • 与传统CT相比,光子计数计算机断层扫描 (PCCT) 提供了更高的能量分辨率,噪声抑制和分辨率.
  • 通过PCCT,可以实现先进的应用,例如组织特征和金属工件减少.
  • 包括电荷分裂和脉冲堆积在内的技术挑战降低了PCCT图像质量和光谱精度.

研究的目的:

  • 开发和评估一种新的双域校正方法,以提高PCCT重建质量.
  • 为了解决PCCT成像中的局限性,例如脉冲堆积和电荷分裂.
  • 改善PCCT图像的定量和质量方面,用于临床应用.

主要方法:

  • 一种双域校正方法,结合了投影和图像域处理.
  • 在投影域中使用基于残余的Wasserstein生成对抗网络来抑制文物和噪音.
  • 在图像域中采用传统的过以提高SNR和保存纹理,并使用基于补丁的网络以提高内存效率.

主要成果:

  • 双域校正方法在投影和图像领域显著提高了图像保真度.
  • 拟议的模型有效地抑制了噪音,并在模拟和真实PCCT数据集中保留了细节.
  • 绩效评估表明,它比现有的最先进的校正技术优越.

结论:

  • 开发的双域校正方法通过减轻关键的技术挑战来提高PCCT图像质量.
  • 这种方法显示出提高诊断准确度和扩大PCCT临床应用的巨大潜力.
  • 这些发现强调了先进校正策略在研究和临床环境中推进PCCT技术的价值.