According to one of the authors of the study, cardiologist David Ouyang from Los Angeles, the results of the successful survey showed where artificial intelligence could be used very well in the future. So-called echocardiography (ECHO) is used to examine heart functions and parameters of individual heart compartments. Patients are examined by specialists in the field of sonography, who usually evaluate the image before handing it over to the cardiologist.
The new study, published in the journal Nature , pitted these specialists against artificial intelligence to see who provided the most accurate initial assessment. Both groups evaluated the so-called LVEF, or ejection fraction of the left (heart) ventricle. It is a test that measures the heart’s ability to pump blood. It is used to determine if patients have had a heart attack or even if they can undergo surgery to implant a defibrillator.
Nearly 3,500 heart ultrasound scans were used for the study, which were randomly split between human experts and artificial intelligence. Their scores were then assessed by cardiologists who did not know which came from humans and which came from the other group.
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Trained on nearly 145,000 echocardiograms
At the same time, cardiologists made substantial changes in more than 27 percent of assessments performed by humans and in nearly 17 percent of assessments performed by artificial intelligence, the study found. “Artificial intelligence was faster, more accurate, and cardiologists didn’t recognize it,” said David Ouyang. He added that there is a shortage of sonography experts in the United States and around the world, and the use of artificial intelligence would save them valuable time.
The artificial intelligence model was trained on almost 145,000 echocardiograms and uses so-called deep learning (Deep Learning), a discipline that falls under the category of machine learning, to process large amounts of data.
The researchers are now applying to the US Food and Drug Administration (FDA) for approval to use the method. They hope that this will soon happen in the European Union and elsewhere in the world, added the cardiologist from Los Angeles. French cardiologist Florian Zores praised the study as well done, however, according to him, in France, artificial intelligence would not find much use in this case, because the initial heart ultrasound examination is already carried out directly by cardiologists here.
A phenomenon called ChatGPT
Artificial intelligence has taken center stage with the development of ChatGPT. This chat system can generate a variety of texts including articles, essays, jokes and poetry based on simple queries. ChatGPT learns to respond to user input and, like humans, learns from large amounts of data.
In March this year, a more advanced GPT-4 artificial intelligence model was introduced. It should be able to provide safer and more useful answers and pave the way for the spread of human-like technologies.
ChatGPT is behind OpenAI, a start-up funded by Microsoft.
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