Computer Assisted Surgery for ENT: Enhanced Sinus Vision
Clear visualization of the surgical site is a vital aspect of any procedure. And this includes ear, nose and throat (ENT) operations. CAS helps our physicians navigate their surgical instruments through complex sinus passages and help avoid unintentional damage to delicate anatomy such as the brain, eyes, nerves and vessels. The ability to work precisely in this delicate environment helps reduce the risk of complications and may lead to improved patient outcomes.
During computer assisted sinus surgery, specialized software creates a virtual 3-D model of the patient’s head and sinuses, essentially a digital roadmap for the surgeon to follow. During surgery the surgeon matches the patient’s actual anatomy to the 3-D model displayed on a monitor. Much like a GPS system in an automobile, the surgeon is then able to track in real time the position of surgical instruments in relation to the patient’s true anatomy.
Prior to sinus surgery with Stryker’s CAS technology, you will undergo a CT scan that reveals the soft tissue and bony structures in and around the sinuses. These images are then imported in to the navigation computer, and the software uses these images to create the virtual 3-D model of your sinus anatomy. In the operating room, the surgical staff places a sticker-like mask (embedded with LEDs) on your face. This mask, in conjunction with the navigation camera, is used to match your true anatomy with the virtual 3-D model. Once this process of patient registration is complete, the navigation camera tracks the movement of Smart Instruments and continuously feeds the location of the coordinates to the computer, displaying the exact location of the instruments on the 3-D model.
This technology enables minimally invasive procedures by offering the surgeon enhanced visualization of the sinus cavities, especially when combined with the use of an endoscope (a thin fiber-optic tube connected to a video camera).