CAMBRIDGE, Mass. and PARIS, Dec. 1, 2011 (GLOBE NEWSWIRE) -- EOS imaging, leader in orthopedic imaging, announces two new studies evaluating the benefits of ultra-low dose and 3D imaging of lower limbs in adolescent patients. The data were presented at the Radiological Society of North America (RSNA) 97th Annual Meeting, November 27-December 2, Chicago, IL.
Marie Meynadier, PhD, CEO, EOS imaging, said, "These new clinical studies further support the utility of EOS for the adolescent orthopedic population for both its ultra-low dose and, now for the first time, the benefits of 3D modeling. We are pleased that this research continues to instill confidence in the technology, and represents the versatility of the 3D imaging beyond the spine to assist in the correction of lower limb deformities."
The first study, "Dose and Scoliosis Radiographic Examination: How Can a Slit-scanning System Reduce Considerably Irradiation by Managing Scatter Reduction?," was presented by Sylvain Deschênes, PhD, of CHU Sainte-Justine, Montreal, Quebec. Researchers compared image quality and clinical radiation dose of the slit-scanning EOS imaging system vs. that of full-field digital radiography (DR), and evaluated the actual dose of each method for scoliosis exams.
EOS imaging technology was found to reduce radiation dose considerably in musculoskeletal radiographic examination, particularly for scoliosis follow-ups where the effective dose was seven times lower than DR. Additionally, researchers concluded that image quality benefits from the improved efficacy in blocking scatter radiation, enabling EOS to deliver quality images with substantially less radiation.
"The radiation dose associated with traditional imaging is a clinical concern in instances where multiple X-rays are needed to appropriately manage the patient, such as with adolescent idiopathic scoliosis. This study is part of a growing body of research supporting the significant dose reduction associated with slit-scanning without compromising the quality of the image, allowing for overall improved patient care and peace of mind for patients and their families," said Dr. Deschênes.
The EOS System was also featured in the poster presentation, titled "Three-dimensional Evaluation of the Lower Limbs in Adolescents Using the EOS System," presented by investigator Ramon Gheno, MD, Lille, France. This is the first clinical study to analyze the utility of 3D imaging to evaluate misalignment of the lower limbs in children and adolescents. It was also published in the September 2011 edition of European Radiology.
Two radiologists retrospectively analyzed two and three-dimensional measurements of 47 lower limbs of 27 randomized patients. The analysis was performed using EOS 3D imaging and a conventional imaging processor (Osirix®) for 2D measurements. The data demonstrates 3D imaging enabled by EOS delivers superior or equivalent dimensional measurements for several key parameters used to evaluate lower limb alignment, such as tibial and femoral length, or frontal and lateral knee angulations.
"This study is the first to use 3D imaging to evaluate lower extremity alignment among the pediatric population. The experience suggests 3D imaging with EOS, especially in the weight-bearing standing position, offers a more precise assessment of abnormal alignment that can significantly benefit surgery planning and enable better understanding of potential, long-term secondary degenerative diseases," said Dr. Gheno.
The EOS system allows for a single, full body or localized image with an ultra-low dose, documented to be up to nine times less than conventional computed radiography systems and more than 100 times below that of one CT scan. The Nobel-prize winning technology and proprietary software technology provide 3D imaging of the patient skeleton and automatically calculates a broad range of clinical parameters essential to diagnosis and surgical planning. Images can be obtained in standing or seated weight-bearing positions to reflect the bone and joint status of the patient's posture. The system has been used in over 100,000 procedures to date across North America, Europe, Asia and Australia.
About EOS imaging
EOS was developed from a Nobel Prize-winning technology by a team of engineers, orthopedic surgeons and radiologists as a complete orthopedic imaging solution. EOS allows full-body imaging of patients that enables global assessment of balance and posture as well as a 3D bone-envelope image in a weight-bearing position, and provides automatically over 100 clinical parameters to the orthopedic surgeon for pre- and post-operative surgical planning. EOS is a total solution in orthopedic imaging available in the U.S. since receiving FDA 510(k) clearance. The company EOS imaging has corporate headquarters in Cambridge, Mass. (185 Alewife Brook Parkway, Suite 410; toll-free: +1-866-933-5301), and Paris, as well as an office in Montreal. Learn more at: www.eos-imaging.com.