只有使用患者图像作为输入的实时个性化CT剂量测量是否可行?
Theocharis Berris1, Marios Myronakis1, John Stratakis2
1Department of Medical Physics, School of Medicine, University of Crete, P.O. Box 2208, 71003 Iraklion, Crete, Greece.
概括
一种新的深度学习方法可以从CT扫描中准确估计患者的器官剂量,显著减少计算时间. 这一进步可以实时进行个性化剂量测量,以提高辐射安全.
科学领域:
- 医学物理 医学物理
- 放射学 放射学是一门学科.
- 人工智能的人工智能
背景情况:
- 个性化的CT剂量测量对于辐射安全至关重要,但目前是劳动密集型的.
- 现有的方法依赖于耗时的蒙特卡洛模拟来准确估计器官剂量.
- 在临床实践中需要更快,更有效的剂量测量技术.
研究的目的:
- 引入一种基于深度学习的新型剂量测量方法,以快速准确地估计器官剂量.
- 仅使用患者计算机断层扫描 (CT) 图像作为拟议剂量计方法的输入.
- 克服传统的,耗时的剂量计方法的局限性.
主要方法:
- 使用条件生成对抗网络 (cGAN) 来进行图像对图像的翻译以生成合成剂量图像.
- 使用了pix2pix架构与剂量图像合成的回归模型相结合.
- 执行器官 (肺,心脏,乳房,骨,皮肤) 的手动细分,以比较剂量计算.
主要成果:
- 在所有被考虑的器官中,平均器官剂量估计误差为8.3%,最大误差为20%.
- 通过自动化器官剂量计算管道证明了该方法的临床可行性.
- 计算了心脏和肺部的器官剂量,每张CT切片大约2秒.
结论:
- 深度学习可以实现实时个性化CT剂量测量.
- 拟议的方法只使用患者CT图像准确估计器官剂量.
- 这种方法为临床环境中的快速个性化剂量测量提供了可行的解决方案.
更多相关视频
09:49A Whole Body Dosimetry Protocol for Peptide-Receptor Radionuclide Therapy PRRT: 2D Planar Image and Hybrid 2D+3D SPECT/CT Image Methods
Published on: April 24, 2020
9.9K
04:48Application of Deep Learning-Based Medical Image Segmentation via Orbital Computed Tomography
Published on: November 30, 2022
2.7K
相关概念视频
Radiological Investigation I: X-ray and CT
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 the...
Imaging Studies II: Positron Emission Tomography and Scintigraphy
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
Imaging Studies for Cardiovascular System V: CT
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...
