Images produced by an mri
January 6, 2020 11h19
Brain tumor: the artificial intelligence can save valuable time
PARIS – The artificial intelligence may allow for an analysis in “almost real time” from a brain tumour during the operation of a patient, thus helping the surgeons to operate in a “more safe and more accurate,” concludes a study published on Monday.
The tool has been tested by a team of american researchers can tell in less than 2 minutes 30 if the collected cells are cancerous or not, compared to 20 to 30 minutes on average for a conventional analysis, according to the article published in the journal Nature Medicine.
The researchers combined a technique of imaging innovative laser and an algorithm driven by the analysis of more than 2.5 million images of biopsies.
With this tool, “we are better equipped to keep the tissues healthy and removing only the tissues infiltrated by cancer cells, which translates to fewer complications and better outcomes for cancer patients”, explained to AFP Daniel Orringer of the university of New York.
“In neurosurgery and in many other areas of cancer surgery, the detection and diagnosis of tumors during operation are essential to perform the surgical procedure most appropriate”, says the neurochirugien.
From the sample taken, the program also allows you to say what type of tumor it is, among the 10 types of brain cancers the most common, with an efficiency comparable to that of physicians, pathologists, according to the study.
In the course of a clinical trial including 278 patients with a tumor in the brain, artificial intelligence has established a correct diagnosis in 94.6% of cases, compared to 93,9% for the human analysis, she concludes.
“So amazing, in all the cases where the pathologists were deceived, our algorithm was right, and in all cases where the algorithm is wrong, the pathologists were correct,” observes Dr. Orringer.
According to the authors, such a tool would improve the relevance of the analysis of human and make up for the shortage of experts in areas where they are not numerous enough.
“Approximately 15.2 million people are diagnosed with cancer each year, and more than 80% will undergo surgery”, they remember.
A fragment of the tumor that is removed is then often analyzed as soon as the operating theatre, to provide a preliminary diagnosis, which represents more than 1.1 million breast biopsies per year in the United States.
They must then be prepared by using dyes such as eosin and then analyzed under a microscope by pathologists, health professionals specializing in the analysis of tissues and cells.