What is the function of optical surgical navigation?

Computer-assisted surgery is a computerized method for performing and planning surgical procedures. Surgical optical navigation is seen as the transition from computerized surgery as a traditional building block giving rise to tactile control, stereoscopic vision, manual dexterity and complete visual control of the surgical field.

In line with the technological advances that have permanently improved the healthcare sector, the world of medical imaging acquisition and processing has also undergone a similar revolution. Most surgeons are familiar with the concepts of high-definition multilayer spiral computed tomography (CT), high-resolution magnetic resonance imaging (MRI) and functional imaging such as positron emission tomography (PET), as well as the ability to process the entire data stream in such a way that the end-user can perform reconstructions in three dimensions (3D) or by image fusion. As a result, a significant part of our surgical planning processes is already based on medical imaging.

Surgical Navigation Systems

These navigation systems help with execution and organization in the surgical field, guiding instruments that are connected to sensor-based displays with imaging methods such as CT or MRI. These navigation systems are part of hospital equipment whose use has increased, making surgery not only easier, but also safer, since they function as a kind of assistant to the doctor.

Operational navigation systems are an integral part of computer-assisted surgery (CAS), which represents a concept that supports surgical procedures based on a dashboard in digital imaging technology.

In this context, navigation systems offer surgeons the possibility of preoperative planning and precise navigation of instruments during the surgical procedure. Similarly, 3D model platforms, using virtual navigation technology corresponding to the patient’s anatomy and in which the surgical instruments used by the surgeon are tracked by an optical localization device, so that its virtual image can be moved within the model.

Similarly, the use of pre-operative visual information directly on the patient’s treatment area is called mixed or potentiated reality, and through potentiation, it enables him to localize internal structures as a guide to the phases of the operation, in which the surgeon must wear special lenses or a stereoscopic helmet in which image fusion takes place. In this way, the surgeon harmonizes the appropriate reconstruction of the patient, in which he monitors his movements via an optical or electromagnetic tracking system. The computer establishes the correspondence between real-time vision and 3D reconstructions based on pre-operative images, but also to simplify image-based assessments.

Advantages of using navigation systems

Surgical optical navigation systems are methods designed to aid and accurately locate anatomical structures in open or percutaneous procedures. These systems offer optical tracking capabilities as well as integration with external devices such as microscopes and ultrasound. The use of these optical navigation systems offers the following advantages:

Ensures safer processes that facilitate data generation in any OR process
Allows remote access for live transmissions from the operating room to auditoriums, or even to other hospitals where other specialists can view procedures to guide or support decisions made by the medical team during the operation.
Greater safety in operations, as the technology equips the surgeon with smaller instruments.
Infection control, by preventing the surgeon from contaminating himself with other elements outside the surgical field, by having better handling on the display of different cuts of anatomical structures that are projected as supporting images in the surgical rooms.

Kalstein optical surgical navigation system

With the use of new technologies in surgical navigation systems, Kalstein offers you innovative serial equipment YR is widely used for surgical visualization, planning and navigation in which it minimizes medical risks, furthermore has tomographic images in DICOM and captured with CT / C-arm / MRI / fMRI are applicable in the surgical navigation system YR02143, which orients active or passive markers that provide precision with advanced optical tracking systems. The method of simulation and 3D modeling of anatomical structures in the material (such as skin, skull, brain tissue or the target lesion) can be easily defined for surgical convenience. Thanks to navigation systems, it provides operators with intelligent software that will help calibrate and compensate for unexpected changes in anatomical structure and cerebral change induced by the removal of the intracranial lesion zone.

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