Royal Philips Expands Rollout of ClarifEye AR Surgical Navigation Solution to Japan

Royal Philips has expanded the rollout of its augmented reality (AR) surgical navigation solution—ClarifEye—to Japan, highlighting positive results in the first patients treated by the International University of Health and Welfare, Mita Hospital (Tokyo, Japan) using the 3D AR solution.
 
Installed on a Philips interventional X-ray system in a hybrid operating room at Mita Hospital, ClarifEye helped the hospital’s orthopedic surgeon Dr. Ken Ishii to successfully treat patients with spinal stenosis (narrowing of the spaces in the spine) and scoliosis (sideways curvature of the spine) via minimally-invasive image-guided procedures.
 
Due to its aging population, the number of spine surgeries performed each year in Japan continues to increase. Lumbar spinal canal stenosis, the most common spinal disease, is currently found in approximately 10.8% of the country’s 70-79 year olds¹. In patients with severe symptoms, surgical procedures are typically performed, including excision of the compressed area and fixation of the bone with screws or other fixtures. Traditionally, these fixation devices have been placed through a large incision with direct observation of the affected vertebra. However, they are now increasingly being placed via minimally-invasive procedures performed through small incisions, minimizing bleeding and soft tissue damage, reducing postoperative pain, and making treatment available to patients at risk from the trauma of open surgery.
 
Philips’ augmented reality surgical navigation solution, ClarifEye, combines 2D and 3D visualizations at low X-ray dose with 3D AR navigation into one system. It enables surgeons to define and navigate critical trajectories for precise device placement while avoiding damage to fragile neurological and vascular structures close to the patient’s spine.
 
“The benefit of performing spine surgery in the Hybrid OR includes the ability to acquire 3D CT images at low dose, having a lot of space, and being able to use the large monitor,” said Dr. Ken Ishii, department of Orthopedic Surgery, International University of Health and Welfare, Mita Hospital. “The addition of a new navigation system helps to create an even safer surgical environment. Compared to existing navigation systems, ClarifEye has no reference frame-related errors, and it’s wonderful that it achieves real time imaging with pedicle segmentation. ClarifEye is a new technology that truly offers minimally invasive surgery for patients and clinical staff.”
 
“Mita Hospital’s positive experience of using ClarifEye to deliver the benefits of minimally-invasive therapy to its spine patients mirrors that of hospitals in Europe and the Middle East who also recently adopted the system,” said Karim Boussebaa, general manager Image Guided Therapy Systems at Philips. “ClarifEye adds a new dimension in surgical precision for patients. It is a great example of how we are innovating procedures and helping clinicians to deliver on the Quadruple Aim of better health outcomes, improved patient and staff experiences, and lower cost of care.”
 
ClarifEye’s live-video computer vision and AR technology uses non-invasive position markers applied to the patient’s skin to track patient positioning and overlays the resultant live video onto a 3D cone-beam CT of the patient’s spinal column. It enables surgeons to visualize the outside and inside of the patient in the same image, together with the planned and real-time trajectory of a Philips ClarifEye needle, without the need for live X-ray imaging. The system eliminates the cumbersome reference frames used by other systems, giving surgeons unimpeded access to the patient.
 
Reference:
¹ Shoji Y et al, Prevalence of lumbar spinal stenosis, using the diagnostic support tool, and correlated factors in Japan: a population-based study, Journal of Orthopaedic Science, Volume 18, Issue 6, 2013, Pages 893-900, ISSN 0949-2658.