Monday , June 27 2022

AI takes aim of screening lung cancer


The term artificial intelligence (AI) may take into account robots or self-driving cars. But one group of researchers uses a type of AI to improve screening for lung cancer.

Screening is important for early diagnosis and improved survival rates, but the current lung cancer method has a positive rate of 96%.

Procedures are mostly unnecessary

But in the new study, researchers were able to reduce the false findings of lung cancer without missing any real cases.

Low-dose CT is a standard diagnostic test for people at high risk for lung cancer. In the United States, about a quarter of these scans reveal shadows that indicate lumps in the clinic. Despite the positive outcome, less than 4% of patients do indeed have cancer.

"Positive testing creates anxiety, increases medical care costs, and follow-up testing is not without risk," said Panayiotis Benos, co-author of the study. He is vice chairman of Computational and Systemal Biology at the University of Pittsburgh.

"For 96 percent of people who have benign tumors, these procedures are unnecessary, so we try to transmit the data to know which ones are benign and malignant," he explained in the news release at the university.

Benius and his colleagues entered the CT data of 218 patients at high risk for the learning algorithm of a machine-a form of artificial intelligence-to create a model that calculates the probability of cancer.

Leading to cancer death

The researchers then compared the results of the model compared with the actual diagnosis of the patients. The model would save 30% of patients with benign tumors from extra, unnecessary tests, without missing a single case of cancer, the team reported.

According to the study authors, they succeeded in eliminating cancer in about a third of patients. This means that these people did not need biopsies, PET scans, or CT scans for a short time. They can only schedule an appointment to come back in a year.

This is the first time artificial intelligence has been used in this way, the researchers said.

The study was published in the journal Turks.

According to the American Cancer Society, lung cancer is the leading cause of cancer death in both men and women. This year, in the United States, the company estimates that there will be approximately 228 000 new cases of lung cancer and 143,000 deaths from lung cancer.

Photo credit: iStock

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