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Nikhil Prasad  Fact checked by:Thailand Medical News Mar 10, 2024  7 months, 4 weeks, 2 days, 14 hours, 39 minutes ago

AI In Medicine: New Artificial Intelligence Based Platform Able To Predict Lung Cancer Metastasis

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AI In Medicine: New Artificial Intelligence Based Platform Able To Predict Lung Cancer Metastasis
Nikhil Prasad  Fact checked by:Thailand Medical News Mar 10, 2024  7 months, 4 weeks, 2 days, 14 hours, 39 minutes ago
AI In Medicine: Over the past few decades, lung cancer has remained a formidable challenge for medical professionals, especially when it comes to predicting metastasis, or the spread of cancer to other parts of the body. In a groundbreaking development that is covered in this AI In Medicine news report, a collaborative effort between Caltech and the Washington University School of Medicine has harnessed the power of artificial intelligence (AI) to predict the likelihood of lung cancer metastasis. This pilot study focused on non-small cell lung cancer (NSCLC) patients, revealing that AI outperformed expert pathologists in making accurate predictions.


New Artificial Intelligence Based Platform Able To Predict Lung Cancer Spread

The Challenge of Lung Cancer Metastasis
Determining the risk of metastasis in individual lung cancer patients has long been a vexing problem for scientists and pathologists. The dilemma faced by physicians treating early-stage NSCLC patients is particularly challenging. They must decide whether to initiate aggressive and potentially toxic treatments, such as chemotherapy or radiation, following lung surgery. The dilemma arises because more than half of stage I - III NSCLC patients eventually experience metastasis to the brain. The novel AI approach presented in this study holds promise in aiding physicians with these complex decisions, potentially minimizing the overtreatment of patients.
 
AI Outperforms Pathologists
In this pioneering study, researchers utilized data and biopsy images from 118 NSCLC patients, training a deep-learning network, a type of AI program, with hundreds of thousands of image tiles extracted from biopsy images. The AI network was then tasked with predicting which patients would develop brain metastases within five years. The results were impressive, with the AI program achieving an 87% accuracy in predicting brain metastasis, outperforming expert pathologists who achieved only 57% accuracy. This indicates that AI methods have the potential to provide specific and sensitive predictions that could significantly impact patient management.
 
The Promise of AI in Precision Medicine
Changhuei Yang, the Thomas G. Myers Professor of Electrical Engineering, Bioengineering, and Medical Engineering at Caltech, emphasizes the significance of the study in addressing the issue of overtreatment in cancer patients. While acknowledging that this is just the initial step, Yang emphasizes the need for a larger study to validate the findings. The AI program's ability to make accurate predictions without disclosing the specific factors considered is a noteworthy aspect, prompting the researchers to delve deeper into the complex features that influence the AI's decisions.
 
Future Directions and Enhancements
The researchers anticipate that by incorporating additional factors such as disease severity and biomarkers, they can enhance the predictive powers of the AI program. The program's inability to articulate the factors influencin g its predictions underscores the intricate nature of tumor cells and their microenvironment, inspiring the team to explore new therapeutic approaches based on these indicators. Furthermore, the Caltech team is keen on developing instrumentation and processes that can generate more uniform and higher-quality biopsy images. This improvement aims to boost the accuracy of AI predictions and move towards optimizing imaging instruments specifically for machine use.
 
Detailed Analysis of the Study
The study, titled "AI-guided histopathology predicts brain metastasis in lung cancer patients," involved the collaboration of Caltech electrical engineers led by Changhuei Yang and researchers from Washington University School of Medicine. The team worked with biopsy images from 118 NSCLC patients, training a deep-learning network to predict brain metastasis based on routine H&E-stained slides.

The DL algorithm achieved an impressive accuracy of 87% in predicting brain metastasis, surpassing the average accuracy of 57.3% achieved by four expert pathologists. Notably, the AI model's performance was even better for the earliest-stage NSCLC patients (stage I), demonstrating its potential impact on patient management. The researchers emphasize that the study is a significant step forward and call for further validation through larger studies.
 
Understanding the DL Model
The complexity of DL models often makes interpretation challenging, but the study's framework allowed for an investigation of the model's attention at the tile-level resolution over the whole slide images (WSI). The DL model's attention maps revealed the areas considered significant for determining outcomes, showcasing a broad set of histologic features that might not be apparent to human pathologists. This capability of AI to identify subtle and complex features could pave the way for new therapeutics targeted at these indicators.
 
Clinical Implications and Future Prospects
The study's results have important clinical implications, especially in the context of early-stage NSCLC patients who face critical treatment decisions. The AI-guided predictions, with their high specificity in identifying patients unlikely to develop brain metastases, offer a potential tool to avoid unnecessary and harmful systemic therapies. The team acknowledges the need for refining the AI model with larger and more diverse datasets, integrating additional clinical data for a comprehensive understanding.
 
Conclusion
The integration of AI in medicine, particularly in predicting lung cancer metastasis, marks a significant advancement in precision medicine. This collaborative effort between Caltech and Washington University School of Medicine demonstrates the potential of AI to outperform traditional methods in predicting patient outcomes. While the study represents a crucial first step, the researchers emphasize the need for larger validation studies and ongoing refinement of AI models. The future holds promise for the development of AI-guided tools that enhance clinical decision-making, minimize overtreatment, and contribute to more personalized and effective cancer care.
 
The study findings were published in the peer reviewed journal: The Journal of Pathology.
https://pathsocjournals.onlinelibrary.wiley.com/doi/10.1002/path.6263
 
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