Medicine and physics combine to create a surgery planning system 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 joint result Of the two domains 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 mimic physical characteristics include And that blood flow behavior sick people before heart surgeryThe initiative is undertaken by an interdisciplinary team, which includes Professionals of the Balciro Institute, Bariloche Nuclear Center And that Garham Hospital.

it’s a to 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, has seen the application of this technique at this North American institute during your stay in the United States, and brought the idea to Argentina with the intention to implement and improve,

for that he Collaboration of two professors from the 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 leads MECOM, said: “We started a collaboration with Dr. Berra’s group and the Department of Computational Mechanics just under two years ago, and it is already producing extremely encouraging results. “So far, the method developed has enabled us to assist in the pre-surgical planning of five patients whose surgery was successfully performed.

modus operandi

Buenos Aires Hospital one is Specialized Institute in High Complication Pediatrics Where they help children and adolescents according to 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 diseases, the doctor applied the techniques seen at Boston Children’s Hospital before performing the operation. Allows evaluation of various surgical options. Earlier he gave a description of the methodology through a familiar he introduced to Balceiro.

step by step process

FirstWhether makes to the sick CT scan or MRIWith whom Images are received in DICOM format (Digital Imaging and Communications in Medicine). Later one is done 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 thinking differently, and we started reconstructing the three-dimensional model to really visualize the geometry of the patient. That personalizes the treatment,” Bera said. The The first contact was made with the director of the institute, Mariano Cantero, who immediately contacted his MECOM colleagues and Balceiro himself. Moreover, the surgeon specifies that this technique makes it possible to estimate the physiological conditions of the patients “well before operations, having a partner or a coffee, and so your head starts to assimilate this geometry”.

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

from Bariloche to Buenos Aires

Engineer Enzo Dari and physicist René Cejas Balseiro is a graduate and professor at the Institute and researcher at the Department of Computational Mechanics at CAB. During the COVID-19 pandemic, Collaboration with the Berra team via Virtuality Develop techniques for planning complex surgeries from 3D models patient physiology.

In this regard, Enzo Dari noted that his group’s contributions to the project promoted by the Garhan team included the development of computational fluid dynamics calculations by combining patient anatomical data. 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 different surgical options currently being studied. Evaluation. “

From these simulation results the percentage is calculated hepatic flow distribution and energy loss Used as additional information in pre-surgical planning,” explains René Sejas, Doctor of Physics and CNEA researcher at MECOM.

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

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

difficulties and challenges

According to Dari and Sejus, when a project of these characteristics is confronted, many challenges As Request for specific patientsThe Interpretation of images to translate them 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 intervention options.

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

Likewise, the physicist mentioned some of the difficulties that arise at this stage, which are related to 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 precise data for a particular case, the information could be used comparatively to rule out certain surgical options.

Medicine and physics combine to create a surgery planning system with 3D images

The challenges of the project are multiple: specific application to patients, interpretation of images and validation of results. Image: Freepik

Project review and status

“Take project value East Collaboration of the scientific sector with the public health sector face 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 daily in the hospital. From there, everyone brings different knowledge and ways of approaching the problem of their specialty”, René Cejas, graduate in physics from the National University of San Luis (2007) and doctor in physics from the Balceiro Institute (2015) blessed Assurance . .

Regarding the current status of the project, Enzo Dari said: “At this stage of the collaboration, the involvement of experts 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 requiring extensive training in its use, if the processes can be standardized, automated and exploited”, concludes an engineer graduate nuclear. nuclear career. in Engineering (1989) and in Nuclear Engineering (1994) with a Ph.D.

It is important to note that such projects highlight The importance of working together between the different fields of knowledge And above all, between different fields such as science and public health Make a tangible contribution to our society.


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