相关实验视频
Updated: Jan 6, 2026
13:45
Hybrid µCT-FMT imaging and image analysis
Published on: June 4, 2015
13.6K
多器官CT图像分割工具对全身[F]FDG-PET/CT临床成像的比较
Cameron Wheeler1,2,3, Phyo H Khaing4, Eleonora D'Arnese5
1School of Informatics, University of Edinburgh, 10 Crichton St, Edinburgh, EH8 9AB, Scotland, UK. Cam.Wheeler@ed.ac.uk.
European journal of nuclear medicine and molecular imaging
|November 27, 2025
概括
自动化多器官细分工具 (MOOSE,TotalSegmentator) 显示可比的子得分,但与手动划分相比,器官体积和SUV指标显著不同,特别是肺部,大脑和脏.
科学领域:
- 医学成像分析 医学成像分析
- 放射学 信息学 信息学
背景情况:
- 自动化多器官细分有助于临床医生和研究人员在正子发射断层扫描/计算机断层扫描 (PET/CT) 成像.
- 手动划线是耗时的,并且取决于操作员.
研究的目的:
- 比较两个自动化的多器官CT细分工具:MOOSE和TotalSegmentator.
- 评估他们的表现与手动划分对比,感知黄金标准.
主要方法:
- 在24名肺癌患者中,将MOOSE和TotalSegmentator与手册标签进行了比较.
- 通过使用迪斯-索伦森系数 (DSC),豪斯多夫距离 (HD),平均对称表面距离 (ASSD),精度和回忆来评估细分.
- 使用器官体积,SUVmean,SUVmax和Hounsfield单位评估临床相关性.
主要成果:
- MOOSE和TotalSegmentator取得了可比的DSC结果.
- 在自动化工具和肺部,大脑和脏的手动划分之间观察到器官体积和SUV的显著差异.
结论:
- 多器官细分工具的性能需要超出Dice-Sørensen分数的评估.
- 临床相关性指标对于评估自动化细分精度至关重要.
相关概念视频
01:29Positron Emission Tomography
6.8K
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...
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...
6.8K
01:25Imaging Studies II: Positron Emission Tomography and Scintigraphy
456
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
Fundamental Principles of PET
456