相关实验视频

Updated: Sep 13, 2025

Swin-PSAxialNet: An Efficient Multi-Organ Segmentation Technique

Swin-PSAxialNet: An Efficient Multi-Organ Segmentation Technique

Published on: July 5, 2024

从CBCT中增强合成骨盆CT生成,使用视觉转换器与自适应的福里埃神经操作员

Rashmi Bhaskara¹, Oluwaseyi Oderinde^1,2

¹Advanced Molecular Imaging in Radiotherapy (AdMIRe) Research Laboratory, School of Health Sciences, Purdue University, West Lafayette, IN, 47907, United States of America.

Biomedical physics & engineering express

|July 28, 2025

概括

这项研究引入了一种使用CycleGAN,视觉转换器和自适应里埃神经操作器的新方法,以提高形光束CT图像质量,以改善前列腺癌放射治疗.

科学领域:

医疗成像医学成像
人工智能的人工智能
辐射疗法辐射疗法

背景情况:

圆束CT (CBCT) 图像质量是放射治疗的一个局限性.
准确的成像对于有效的治疗规划和治疗至关重要.

研究的目的:

开发一种使用CycleGAN,视觉变压器 (ViT) 和自适应里埃神经操作器 (AFNO) 的合成CT (sCT) 生成方法,以提高CBCT图像质量.
增强前列腺癌患者适应性放射治疗计划.

主要方法:

使用了20名前列腺癌患者的数据集,并配对了CBCT和计划CT (pCT) 图像.
预处理的图像经过注册,重新抽样和正常化.
一个CycleGAN模型集成了一个UNet生成器,并与ViT和AFNO进行了增强,用于Fourier域中的注意力机制.

主要成果:

拟议的模型显著改善了解剖细节的保存和复杂的图像依赖性捕获.
AFNO有效地处理了全球图像信息,并适应了患者间的变化.
实现了高性能,MAE为9.71,PSNR为37.08dB,SSIM为0.97和NCC为0.99. 这一数字为9.71的MAE,PSNR为37.08dB,SSIM为0.97和NCC为0.99.

结论:

与AFNO集成的CycleGAN框架有效地解决了CBCT图像质量限制.
生成的sCTs有助于适应性放射治疗的规划,使得根据瘤反应进行剂量调整.
这种方法显示了改善瘤向,适应性放射治疗和临床决策的潜力.

关键词:

循环GANAN是一个循环.这就是U-Net.适应性放射疗法适应性放射疗法圆束CT CT 圆束前列腺癌是前列腺癌.合成CTCT 合成CT 视觉变压器视觉变压器

更多相关视频

Near Infrared Optical Projection Tomography for Assessments of β-cell Mass Distribution in Diabetes Research

Near Infrared Optical Projection Tomography for Assessments of β-cell Mass Distribution in Diabetes Research

Published on: January 12, 2013

Hybrid µCT-FMT imaging and image analysis

Hybrid µCT-FMT imaging and image analysis

Published on: June 4, 2015

相关概念视频

Computed Tomography

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...