Lung Cancer: A Deadly Challenge and a New Hope
Lung cancer remains the deadliest cancer globally, claiming over 1.7 million lives each year—more than breast, prostate, and colorectal cancers combined. One significant challenge in combatting this disease is that most cases are diagnosed at advanced stages when treatment options are less effective. Google is determined to address this issue with its innovative AI-based tool aimed at enhancing the accuracy and accessibility of lung cancer predictions.
Traditionally, radiologists sift through hundreds of images from a single CT scan to screen for lung cancer. Google's AI model streamlines this process by generating an overall malignancy prediction and identifying subtle malignant tissues, or lung nodules, that are often difficult to detect. This AI also incorporates data from previous scans, which helps assess the growth rate of suspicious tissues.
To evaluate the model's effectiveness, Google tested its AI on 45,856 chest CT scans and compared the results with those from six board-certified radiologists. The findings revealed that Google's AI detected five percent more cancer cases than the radiologists while reducing false-positive results by over 11 percent.
Although the model requires further clinical research and testing before it can be widely implemented, initial results are promising. Currently, only two to four percent of eligible patients in the U.S. undergo lung cancer screening. Google envisions that, like its other AI-driven disease detection tools, this one will make early lung cancer detection more accessible and ultimately save lives.