Multimodal Transformer Medical Data Synthesis for Privacy Protection
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Solution Overview
Problem
The lack of labeled datasets for training machine learning models using paired medical images and text due to patient privacy concerns hinders the development of more powerful models for medical tasks.
Innovation Solution
A multimodal transformer network is employed to generate synthetic medical data by extracting features from input medical images and text, allowing for the creation of synthetic medical images, text, or image/text pairs using a trained machine learning model, which addresses the dataset scarcity issue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If real medical data is used for training machine learning models, then model performance is improved, but patient privacy concerns and data security risks worsen
Solution Approach 1:
The patent generates synthetic medical images that replicate the essential characteristics and diagnostic value of real medical images without containing actual patient data. These synthetic images are created by training a generative model on real medical images and then using the trained model to produce new, fictitious images that maintain statistical properties and anatomical accuracy while eliminating privacy risks associated with real patient data.
Solution Approach 2:
The patent introduces an intermediate representation layer where real medical images are first processed to extract key features and patterns, which are then used to train a generative model. This intermediate process allows the system to learn from real data without directly storing or exposing the original patient images, thereby mediating between the need for high-quality training data and privacy protection requirements.
2Adaptability or versatility
If paired medical images and text data are collected, then comprehensive model training is enabled, but data availability and labeling efficiency worsen
Solution Approach 1:
The patent employs a multimodal transformer model that automatically generates and aligns medical images with their corresponding textual descriptions without requiring manual annotation. The model takes medical images as input and autonomously generates accurate radiological reports, eliminating the need for radiologists to manually create text-label pairs and significantly improving data collection efficiency.
Solution Approach 2:
The patent pre-trains the generative model on a subset of labeled medical image-text pairs during the training phase, enabling the model to learn the relationship between images and their descriptions. Once trained, the model can rapidly generate new paired data without requiring manual labeling, effectively performing the labeling action in advance during training and eliminating it during deployment.
3Object-affected harmful factors
If synthetic medical data is generated, then privacy protection is improved, but data quality and realism worsen
Solution Approach 1:
The patent employs advanced generative models that can dynamically adjust multiple parameters including image resolution, anatomical detail level, pathology severity, and tissue characteristics. By controlling these parameters, the synthetic images can be generated with specific quality thresholds and diagnostic accuracy requirements, ensuring that the data maintains the necessary precision for training medical AI models while remaining free of patient privacy information.
Data Source
AI summary
Systems and methods for generating synthetic medical data are provided. One of 1) an input medical image, 2) input medical text, or 3) an input medical image/text pair is received. Features are extracted from the received one of 1) the input medical image, 2) the input medical text, or 3) the input medical image/text pair. One of A) synthetic medical text, B) a synthetic medical image, or C) a synthetic medical image/text pair is generated for the received one of 1) the input medical image, 2) the input medical text, or 3) the input medical image/text pair respectively based on the extracted features and using a trained machine learning based model. The generated one of A) the synthetic medical text, B) the synthetic medical image, or C) the synthetic medical image/text pair is output.


