在脑瘤中处理缺失的MRI数据分类任务:合成图像与合成图像的使用. 复制图像和空图像的复制图像
Yael H Moshe1,2, Yuval Buchsweiler1,3, Mina Teicher2,4
1Sagol Brain Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
Journal of magnetic resonance imaging : JMRI
|October 21, 2023
概括
生成的图像有效地取代AI脑瘤分类中缺少的MRI数据,优于重复或黑色图像. 这种方法确保人工智能模型可以可靠地分类瘤,即使有不完整的患者数据.
科学领域:
- 人工智能的人工智能
- 医疗成像医学成像
- 机器学习 机器学习
背景情况:
- 深度学习模型对于医学成像中的病变分类至关重要.
- 临床数据集经常缺少MRI数据,阻碍AI模型的性能.
- 需要新的策略来解决人工智能驱动的医学诊断中的数据缺口.
研究的目的:
- 评估使用生成,重复或黑色图像来替代缺失的MRI数据的有效性.
- 评估这些归算方法对基于人工智能的脑瘤分类准确性的影响.
- 在深度学习任务中确定处理缺失MRI扫描的最佳策略.
主要方法:
- 一项回顾性研究使用了当地和公共 (BraTS) 数据集,分别包括224名和335名患者.
- 三个Pix2Pix生成对抗网络 (GAN) 模型被训练来生成T1WI,T2WI和FLAIRMRI序列.
- 使用Resnet152评估了分类性能,比较了基线,生成,重复和黑色图像赋值方法.
主要成果:
- 生成的图像与原来的MRI图像具有很高的相似性 (PSNR: 35.65/32.94,SSIM: 0.87/0.91).
- 人类读者认定39%的生成图像是真实的.
- 人工智能分类准确度在生成图像 (0.91/0.82) 中最高,超过重复 (0.85/0.79) 和黑色图像 (0.77/0.68).
结论:
- Pix2Pix-GAN生成的图像可用于在AI分类模型中赋予缺少的MRI数据.
- 这种方法证明了独立数据集的稳定性和概括能力.
- 生成的图像归算提供了一个强大的解决方案,用于提高AI模型的性能与不完整的临床数据.
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