Tuesday, August 16, 2022

Medicine and physics come together to create a system for planning surgeries with 3D images

Behind this innovative initiative are the teachers of Balceiro and the medical staff of Garham Hospital. Nuclear engineer Enzo Alberto Dari, physicist René Cejas Bolesek and Dr. Ignacio Bera share the details.

Physicists and doctors work in a system to plan complex surgeries. Photo: UNCUYO Press

Complex surgery planning system with 3D imagess result of joint Of the two areas of human knowledge: medicine and physics, Thanks to a group of experts, the possibility of introducing this technology is currently being worked out. The same imitating physical characteristics include And this blood flow behavior of patients before heart surgery, The initiative is undertaken through an interdisciplinary team, which includes Professionals of the Balciro Institute, Bariloche Nuclear Center And this Garham Hospital.

this is a offer -In continuous development- used in pediatric hospitals The first level, as in the case of Boston Children’s Hospital. Ignacio Berra, Garrahan Cardiovascular Surgeon, saw the application of this technique at that North American Institute on the occasion of your stay in the United States, and brought the idea to Argentina with intention to implement and improve,

for this he Collaboration of two teachers of Balseiro Institute, nuclear engineer Enzo Alberto Dari and physicist René Cejas Bolesek, from the Department of Computational Mechanics (MECOM) of the Bariloche Atomic Center (CAB). Three other members of the same group also participate in the project: Mauro Fermin, William Machaca and Mariano Cantero.

Participate in the expansion of the professional system of various fields of human knowledge. Image: Freepik

Dari, who serves as head of MECOM, said, “We started a collaboration with Dr. Berra’s group and the Department of Computational Mechanics a little less than two years ago, and it is already producing extremely encouraging results. ” So far, the method developed has allowed us to assist in the pre-surgical planning of five patients whose surgery was performed successfully.

modus operandi

Hospital of Buenos Aires one is Specialized Institute in High Complication Pediatrics Where they help children and adolescents as per their health needs. some Procedures they are very Complex and need a multidisciplinary approach,

Within the institution, Ignacio Berra works in pediatric cardiovascular surgery and heart, lung and kidney transplantation and to treat patients with certain heart conditions, the doctor applied the techniques seen at Boston Children’s Hospital prior to performing the operation. Allows evaluation of various surgical options. Earlier, he gave a description of the methodology through a colloquial which he introduced in Balceiro.

step by step process

FirstIf makes to the patient a CT or MRIWith whom Images are received in DICOM format (Digital Imaging and Communications in Medicine). Later one is made 3D reconstruction of your physiology and so you get a Three-dimensional model of your anatomy.

“Here we started with Balsero and the people at the hospital to think differently, and we began to reconstruct the three-dimensional model to properly visualize the geometry of the patient. It personalizes the treatment,” said Bera. said. The initial contact was made with the director of the institute Mariano Cantero, who immediately contacted his colleagues from MECOM and Balceiro himself. In addition, the surgeon said that this technique makes it possible to estimate the physiological conditions of patients “operations long before, having a partner or coffee, and thus your head begins to assimilate that geometry.”

Complete Charla by Ignacio Berras In Balseiro you can Look in this link.

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from Bariloche to Buenos Aires

Engineer Enzo Dari and physicist René Cejas Balseiro is a graduate and professor at the Institute and researcher in CAB’s Department of Computational Mechanics. During the COVID-19 pandemic, Collaborated with the Berra team through Virtuality To develop techniques for planning complex surgeries from 3D models of patients’ physiology.

In this regard, Enzo Dari remarked that his group’s contributions to the project promoted by the Garhan team included the development of computational fluid dynamics calculations by combining anatomical data from patients. Engineers and researchers from the National Atomic Energy Commission (CNEA) and the National Council for Scientific and Technical Research (CONICET) said, “These calculations allow us to represent the hemodynamic behavior in the various surgical options that are being evaluated. “

From these simulation results percentage is calculated hepatic flux distribution and energy loss Used as supplementary information in pre-surgical planning”, explained René Sejas, PhD in physics and CNEA researcher at MECOM.

Medicine and physics come together to create a system for planning surgeries with 3D images

The system seeks to plan complex surgeries through 3D images. Photo: Freepik

When asked about his experience in simulating the cardiovascular system, Dari said he had participated in such procedures. While Sejus confirmed that MECOM has been working in the field of medical image processing and 3D visualization software development over the years, which allowed them to “integrate these developments with knowledge of computational simulations to be applied in simulations of the cardiovascular system”. Gave the permission to.

difficulties and challenges

According to Dari and Sejus, when a project of these characteristics is faced, many challenges like Application for specific patientsThe Interpretation of images to translate into physico-mathematical models and verification of the results obtained, among others. And he clarified that, in addition, their cooperation includes numerical simulations of different options for intervention.

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Regarding the reliability of the simulations, the scientists confirmed that even if the numerical instrument is not fully “calibrated” or validated, its results can provide comparative information. “Calibration or verification of the computational modeling process in real cases is very difficult and is a current research topic”Said bro.

Similarly, the physicist talked about some of the difficulties arising at this stage, which are associated with the complexity of the physiological behavior of the human body and the specificity of each patient and each surgery. And he explained that in the absence of accurate data for a particular case, the information could be used comparatively to rule out certain surgical options.

Medicine and physics come together to create a system for planning surgeries with 3D images

The project has a range of challenges: specific application to patients, interpretation of images and validation of results. Image: Freepik

Project balance and status

“Take project value Is Collaboration of the scientific sector with the public health sector dealing with a real problem. In our case, the generosity of Dr. Berra and his team was necessary to give us a place to participate and try to understand some of the problems they face every day in the hospital. From this, each one contributes different knowledge and ways of approaching the problem from his specialty”, René Cejas, a graduate in physics from the National University of San Luis (2007) and a PhD in physics from the Balceiro Institute (2015) blessed Assurance. .

Regarding the current status of the project, Enzo Dari said: “At this stage of collaboration, expert involvement is still required for the preparation, execution and analysis of the simulations. Once the range of tools to be used is better understood The idea is to create transferable software in the medical field, without the need for extensive training in its use, if the processes can be standardized, automated and used”, concludes a nuclear engineer graduate from the nuclear career. in Engineering (1989) and in Nuclear Engineering (1994) with Ph.D.

It is important to note that such projects highlight The importance of joint work between different areas of knowledge And above all, between different fields such as science and public health To make a tangible contribution to our society.

Nation World News Desk
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