AI通过分析MRI元数据,自动优化脊柱成像协议,提升图像质量。
Exploring the Feasibility of AI-Assisted Spine MRI Protocol Optimization Using DICOM Image Metadata
- 利用DICOM元数据训练5个AI模型,识别影响图像质量的参数趋势。
- 在292例以上数据集上F1值达77%至93%,结果符合磁共振理论。
- 帮助医疗物理师高效开展临床质控,适合影像科与设备优化团队使用。
人工智能(AI)正被广泛用于优化磁共振成像(MRI)扫描方案。由于图像细节对诊断准确性至关重要,优化采集协议对提升图像质量至关重要。尽管医学物理师负责此任务,但设备使用差异和临床中多样的扫描方案带来了显著挑战。本研究旨在验证利用真实临床动态数据(特别是DICOM元数据)进行AI驱动的MRI协议优化的可行性。为此,构建了四个脊柱MRI检查数据库,目标属性为图像质量二分类(良好或不良)。训练五种AI模型以识别影响图像质量的采集参数趋势,并基于磁共振理论进行分析。通过SHAP图解析趋势。在包含292例及以上样本的数据集上,模型的F1值达到77%至93%,且观察到的趋势与磁共振理论一致。模型有效反映了临床MRI实践的真实情况,为医学物理师提供了有价值的质量控制工具。结论表明,AI在优化MRI协议方面展现出潜力,有助于医学物理师提升图像质量并提高临床质控效率。
原文摘要 · Abstract (English)
Artificial intelligence (AI) is increasingly being utilized to optimize magnetic resonance imaging (MRI) protocols. Given that image details are critical for diagnostic accuracy, optimizing MRI acquisition protocols is essential for enhancing image quality. While medical physicists are responsible for this optimization, the variability in equipment usage and the wide range of MRI protocols in clinical settings pose significant challenges. This study aims to validate the application of AI in optimizing MRI protocols using dynamic data from clinical practice, specifically DICOM metadata. To achieve this, four MRI spine exam databases were created, with the target attribute being the binary classification of image quality (good or bad). Five AI models were trained to identify trends in acquisition parameters that influence image quality, grounded in MRI theory. These trends were analyzed using SHAP graphs. The models achieved F1 performance ranging from 77% to 93% for datasets containing 292 or more instances, with the observed trends aligning with MRI theory. The models effectively reflected the practical realities of clinical MRI settings, offering a valuable tool for medical physicists in quality control tasks. In conclusion, AI has demonstrated its potential to optimize MRI protocols, supporting medical physicists in improving image quality and enhancing the efficiency of quality control in clinical practice.
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