Wednesday November 21, 2018

New AI system can diagnose prostate cancer just good as pathologists

"The system was programmed to learn and gradually improve how it interpreted the samples. Our result show that the diagnosis the AI reported was at a level comparable to that of a pathologist"

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Chronic diseases can cause cancer as well.
Chronic diseases can cause cancer as well.
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  • This new AI can identify cancer just as accurately as a pathology lab
  • This app can overcome the shortage of pathologists
  • The app is very useful and revolutionary

Researchers have developed a new learning artificial intelligence (AI) system which can diagnose and identify cancerous prostate samples as accurately as any pathologist.

Chronic diseases are not yet included in cancer prevention schemes.
New mobile app can detect cancer.

According to the researchers, this holds out the possibility of streamlining and eliminating variation in the process of cancer diagnosis. It may also help overcome any local shortage of trained pathologists.

“This is not going to replace a human pathologist. We still need an experienced pathologist to take responsibility for the final diagnosis,” said lead author Hongqian Guo from the Nanjing University in China.

Also Read: Girls may inherit ovarian cancer gene from fathers

“What it will do is help pathologists make better, faster diagnosis, as well as eliminating the day-to-day variation in judgement which can creep into human evaluations,” Guo added.

For the study, presented at the 33rd European Association of Urology Congress in Copenhagen, researchers took 918 prostate whole mount pathology section samples from 283 patients, and ran these through the analysis system, with the software gradually learning and improving diagnosis.

These pathology images were subdivided into 40,000 smaller samples; 30,000 of these samples were used to ‘train’ the software, the remaining 10,000 were used to test accuracy.

The results showed an accurate diagnosis in 99.38 percent of cases (using a human pathologist as a ‘gold standard’), which is effectively as accurate as the human pathologist.

The app is just as effective as a pathologist. Pixabay

They were also able to identify different Gleason Grades in the pathology sections using AI; ten whole mount prostate pathology sections have been tested so far, with similar Gleason Grade in the AI and human pathologist’s diagnosis. The group has not started testing the system with human patients.

“The system was programmed to learn and gradually improve how it interpreted the samples. Our result show that the diagnosis the AI reported was at a level comparable to that of a pathologist. “Furthermore, it could accurately classify the malignant levels of prostate cancer,” Guo added. IANS

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High Exposure to Radio Frequency Radiation Increase Risk of Cancer

Interestingly, the team found that rats exposed to whole body RFR lived longer than rats unexposed to any radiation

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High exposure to radio frequency radiation linked to cancer. Pixabay

Exposure to high levels of radio frequency radiation (RFR) — used in 2G and 3G cell phones — can increase the risk of cancer tumours in the heart, brain and adrenal gland, researchers have warned.

The study, led by the US National Institutes of Health’s National Toxicology Programme (NTP), looked at the effects of exposing rodents to extremely high levels of radiofrequency throughout the entire body.

While high levels of RFR caused cancerous tumours in the heart (found very rarely in humans), brain and adrenal gland, of male rats, the findings on female rats were ambiguous.

“The exposures used in the studies cannot be compared directly to the exposure that humans experience when using a cell phone. In our studies, rats and mice received radio frequency radiation across their whole bodies,” John Bucher, researcher from the NTP, said in a statement.

“By contrast, people are mostly exposed in specific local tissues close to where they hold the phone,” Bucher added.

For the study, the team housed the animals in chambers specifically designed for the study.

Exposure to RFR began in the womb for rats and at 5 to 6 weeks old for mice, and continued for up to two years, or most of their natural lifetime.

Breast Cancer
Cancer ribbon. Pixabay

However, the RFR exposure was intermittent — 10 minutes on and 10 minutes off — totalling about nine hours each day.

In addition, the RFR levels ranged from 1.5-6 watts per kilogram in rats, and 2.5-10 watts per kilogram in mice.

“We believe that the link between radio frequency radiation and tumours in male rats is real,” Bucher noted.

Interestingly, the team found that rats exposed to whole body RFR lived longer than rats unexposed to any radiation.

“This may be explained by an observed decrease in chronic kidney problems that are often the cause of death in older rats,” the researchers noted.

Also Read- Actress Richa Chadha Speaks Upon Patriarchal Society

According to the US Food and Drug Administration (FDA), while animal studies contribute to discussions on the topic, “this study was not designed to test the safety of cell phone use in humans, so we cannot draw conclusions about the risks of cell phone use from it.”

Since the exposure levels and durations in the studies were greater than what people experience, “we agree that these findings should not be applied to human cell phone usage”, the FDA said on Thursday. (IANS)