Olympus announces first results of its AI-based pathology diagnostic tool for gastric cancer

The results of Olympus’ ongoing joint research program to create an AI-based pathology diagnostic tool with the potential to streamline pathologists’ workloads were announced at the Japan Society of Digital Pathology Study annual meeting. The diagnostic tool achieved 100% sensitivity  and 50% or more specificity  for all gastric biopsy pathology specimens analyzed.

Demand for diagnostic tools

The ongoing shortage of pathologists has led to a demand for AI-based pathology diagnostic tools. Olympus, through its Office of Innovation, began a collaboration with the Kure Medical Center and Chugoku Cancer Center in Japan in 2017 to develop an AI-based pathology diagnostic tool. In the initial testing phase , the AI was trained using 368 gastric biopsy pathology slide images.

The second phase of research  began in November 2020, where the diagnostic tool was expanded to six hospitals in Japan, with the aim of verifying the versatility and improving the accuracy of the AI tool. Specifically, it was important to test whether the tool works correctly on pathology slides that vary in thickness and color.

The goal of this program is to deliver AI pathology diagnosis software that can assist pathologists by 2023.

Preliminary results

The AI-based pathology tool uses a convolutional neural network  (CNN) optimized to analyze pathology images. This technology enables the tool to identify adenocarcinoma  versus non-adenocarcinoma tissue in an image. Once the AI was trained, it was tested using 1200 pathology whole slide images from the six institutions participating in the study. The AI classified each image as either adenocarcinoma or non-adenocarcinoma. The AI tool was able to achieve 100% sensitivity and 50% or higher specificity for slides from all six facilities. The robustness of the results will enable Olympus to pursue commercialization of the AI tool in the future.

For more information about Olympus life science products, please visit Olympus-LifeScience.com.

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