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

Curvilinear Motion: Rectangular Components01:23

Curvilinear Motion: Rectangular Components

Curvilinear motion characterizes the movement of a particle or object along a curved path, notably evident when envisioning a car navigating a winding road. If the car starts at point A, its position vector is established within a fixed frame of reference, where the ratio of the position vector to its magnitude signifies the unit vector pointing in the position vector's direction.
As the car advances, its position evolves over time. Quantifying the car's velocity involves computing the time...

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

Long-stranded XNA-cssDNA hybrids for robust data storage.

Science advances·2026
Same author

PUM2 inhibits ferroptosis and enhances oxaliplatin resistance in COAD via the NEDD4L/NRF2 axis.

Translational oncology·2026
Same author

Artificial Intelligence in Image Assisted Radiation Oncology.

Cancers·2026
Same author

Tailoring a dual-function oxide supported copper catalyst for CO<sub>2</sub> hydrogenation.

Journal of colloid and interface science·2026
Same author

Extracellular vesicles from <i>Akkermansia muciniphila</i> protect streptozotocin-induced diabetic mice by regulating glucose homeostasis, oxidative stress, and immune tolerance.

Frontiers in immunology·2026
Same author

A Simulation-Free Radiation Therapy Workflow Using Synthetic Computed Tomography Generated from Diagnostic Magnetic Resonance Imaging for Personalized Hippocampal-Sparing Whole-Brain Treatment.

Practical radiation oncology·2026

相关实验视频

Updated: Jul 5, 2026

Measuring Connectivity in the Primary Visual Pathway in Human Albinism Using Diffusion Tensor Imaging and Tractography
13:26

Measuring Connectivity in the Primary Visual Pathway in Human Albinism Using Diffusion Tensor Imaging and Tractography

Published on: August 11, 2016

12.2K

一个条件点云扩散模型用于通过单个任意角的X射线投射跟踪可变形肝脏运动.

Jiacheng Xie, Hua-Chieh Shao, Yunxiang Li

    ArXiv
    |March 31, 2025
    PubMed
    概括

    这项研究介绍了PCD-Liver,这是一个新的框架,用于从单个X射线图像中准确地跟踪可变形肝脏运动. 它显著改善了肝脏运动估计和瘤局部化,用于图像导向放射治疗.

    科学领域:

    • 医疗成像医学成像
    • 辐射疗法 辐射疗法
    • 计算生物学 计算生物学

    背景情况:

    • 对可变形肝脏运动的实时跟踪对于有效的图像引导放射治疗至关重要.
    • 现有的方法在准确性和稳定性方面面临挑战,特别是单个X射线投影.

    研究的目的:

    • 开发和评估一个患者特定的框架 (PCD-肝脏) 用于准确和强大的可变形肝脏运动跟踪使用单个X射线投影.
    • 通过从表面运动估计推断内部运动来改善肝脏瘤的局部化.

    主要方法:

    • 开发了一种条件点云扩散模型 (PCD-Liver),结合了刚性对齐和用于变形校正的扩散模型.
    • 该模型利用来自单个X射线投影的运动编码特征和一个以几何信息为基础的特征聚合层.
    • 一个基于U-Net的生物机械模型用PCD-Liver的表面运动估计作为边界条件来推断内部运动和瘤位置.

    主要成果:

    • PCD-Liver显著减少了运动估计误差:RMSE从8.86毫米降至3.59毫米,HD95从10.88毫米降至4.29毫米.
    • 瘤定位的准确性有所提高,COME从9.41毫米减少到3.45毫米.
    • 该框架即使在噪音条件下也表现稳定.

    结论:

    更多相关视频

    In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
    07:43

    In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy

    Published on: July 2, 2021

    2.9K
    Author Spotlight: A Non-Invasive Tool to Assess and Differentiate Fat Patterns in Liver Using 3D Dixon MRI
    05:37

    Author Spotlight: A Non-Invasive Tool to Assess and Differentiate Fat Patterns in Liver Using 3D Dixon MRI

    Published on: October 20, 2023

    1.2K

    相关实验视频

    Last Updated: Jul 5, 2026

    Measuring Connectivity in the Primary Visual Pathway in Human Albinism Using Diffusion Tensor Imaging and Tractography
    13:26

    Measuring Connectivity in the Primary Visual Pathway in Human Albinism Using Diffusion Tensor Imaging and Tractography

    Published on: August 11, 2016

    12.2K
    In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
    07:43

    In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy

    Published on: July 2, 2021

    2.9K
    Author Spotlight: A Non-Invasive Tool to Assess and Differentiate Fat Patterns in Liver Using 3D Dixon MRI
    05:37

    Author Spotlight: A Non-Invasive Tool to Assess and Differentiate Fat Patterns in Liver Using 3D Dixon MRI

    Published on: October 20, 2023

    1.2K
    • PCD-Liver提供了一个准确而强大的解决方案,用于从单个X射线投影中估计可变形肝脏运动.
    • 这项技术有可能提高肝癌患者的图像导向放射治疗的精度和安全性.