Cirurgia Bariàtrica

Plataforma de Realidad Virtual para controlar la evolución, la simulación y la predicción de la cirugía bariátrica



The goal of the project is to implement a Virtual Reality Platform in order to support the physicians during the Bariatric Surgery process and predict the results of surgery.

The system will retrieve the patient’s abdominal TACs from the Picture Archiving and Communication System (PACS) from these TACS the system will generate a 3D representation of the patient’s stomach. Through the usage of mathematical algorithms the platform allow the physicians move the 3D model, zoom it, decompose it and finally plan the real surgery, simulating it over the 3D representation generated.

The platform will have the following main functionalities:

  • 3D reconstruction of the patient’s stomach, generated by using abdominal TACs.
  • Simulation of the bariatric surgery using the 3D model patient’s stomach.
  • Prediction of the patient’s weigh loses, based on patient’s physiological characteristics and a statistical model.

Project funded by the Ministry of Economy and Competitiveness (MINECO) as part of the call in 2011, for the grant corresponding to the subprogram Innpacto, within the instrumental line of “Articulación e Internacionalización del Sistema”, under the National Program Scientific Research, Development and Technological Innovation 2008-2011.


The Virtual Reality Platforms have a wide range of applications in medicine, especially within the planning and simulation of different kind of surgeries. Because of that, the developed system will use technologies already known, along with segmentation and 3D reconstructions techniques, combining all of them in order to deliver a new service for Bariatric Surgery. In addition to the feature, the system also incorporates technological innovation through surgery simulation and the prediction of the patient’s evolution; these two techniques have never been used in bariatric surgery. Furthermore, the design and implementation are based upon software modularity, which allow the extensibility and flexibility of the software.

Core and add-on modules implemented include: 

  • 3D reconstruction Module: it allows generating a patient’s stomach 3D reconstruction from TACs images.
  • Surgery Simulation Module: it allows the physician to simulate and plan the surgery. Using the system the physician will be able to select the zone of the stomach that will be removed and stitch it.
  • Prediction Module: it provides a prediction of the patient’s weight loss by using heuristic models.
  • Report Module: it allows collecting the patient’s information and generating clinical report.
  • Data Integration Module: it allows requesting to the Hospital Information System (HIS) data from the patient and exports and transfers the report data to the HIS in HL7 standard.
  • Image acquisition Module: it retrieves the patient’s abdominal TACs from the Picture Archiving and Communication System (PACS).

The clinical research highlights of the project are:

  • Compare conventional laparoscopic and GT single-port surgeries.
  • Study the correlation of the different kind of surgeries and the patient’s weight loss and life’s quality. 
  • Study morphological and pathological patient’s characteristics during the post-surgery period, also when the surgery has not the expected effects.

The technological innovation highlights of the project are:

  • 3D reconstruction of the patient’s stomach. 
  • Simulation of the real surgery using the patient’s stomach 3D reconstruction.
  • Prediction the evolution of the patient.
  • Integration with hospital information’s system, HIS and PACS.

The use of Virtual Reality Platforms has been evolved greatly in the health sector in recent years. These platforms provide necessary tools for healthcare professional to develop their work easily and efficiently. The use of Virtual Reality Platforms has improved diagnosis, treatment and patient management.

In the case of Bariatric Surgery the application of this technique has been little. As a result of this project a new Virtual Reality Platform will be developed, unique for bariatric surgery, which allows creating a 3D reconstruction of the patient’s stomach, simulate the surgery and predict the patient’s evolution.

The principal benefits addressed by the use of this platform are:

  • Improvement of patient care, and thus an increase in quality assistance.
  • Have a prediction of the outcome of the operation before carrying it out.
  • Reduce recovery time of the patient.
  • An enhancement in the health care professional’s knowledge.

Obesity (BMI>30) is a metabolic disorder with a higher rate of prevalence in the world. Currently it is estimated that in Spain there is an obesity rate of 13.4% and a rate of Morbid Obesity (BMI>40) of 3%, but the alarming data is that according to the ENS (“Encuesta Nacional de Salud”, National survey for Health) Obesity had a 200% increase between 1993 and 2006. 

Obesity is one of the biggest health problems that could lead to the development of comorbidities such as diabetes, hypertension, heart disease, osteoarthritis, gout, hyperlipidemia, cholelithiasis, and sleep apnea. When it comes to Morbid Obesity, complications are more severe, occur in a shorter period of time and it has associated a decrease in the quality of life. In fact, obesity is considerate the first cause of death after smoking causes.

Medical treatment combines the dietary, pharmacological or psychotherapeutic techniques. But in the vast majority of cases with Morbid Obesity, bariatric surgery is the only solution. It is estimated that 400,000 bariatric surgeries are performed every year in the world.

In the last few years several techniques have been developed for simulation and 3D reconstruction proposes, however, the applicability of these techniques for surgery plan, evaluation and follow-up in the bariatric surgery has been yet a little.

06/2011 to 12/2014
3.224.306,80 €