St. David's HealthCare
August 09, 2017

EOS Imaging

EOS Orthopedic and Spine Imaging System Enables

Accurate Diagnosis and Patient-Specific Treatment

AUSTIN, Texas—On June 20, 2017, St. David’s Medical Center became the first facility in the Austin area to add the EOS® Imaging System—the first technology capable of providing full-body, 2-D and 3-D images of patients in a standing position at a low dose of radiation—to its outpatient imaging services.

The EOS® system offers 50 to 85 percent less radiation than traditional X-ray systems and 95 percent less radiation than basic CT scans, in accordance with the ALARA (As Low As Reasonably Achievable) principle for minimizing a patient’s exposure to radiation.

EOS is an innovative 2-D/3-D imaging system dedicated to adult and pediatric orthopedics and osteoarticular pathologies, including those involving the hips, knees and spine. EOS captures full body images in a single scan to provide a more complete picture without stitching or vertical distortion, providing true-size images for accurate measurement and surgical planning.

"We are very excited to bring this innovative technology to our patients, as it represents a true breakthrough in orthopedic and neurosurgical imaging by offering high-quality imaging with only a low dose of radiation,” Kurt W. Von Rueden, M.D., a fellowship-trained scoliosis and spinal deformity specialist who practices at St. David’s Medical Center, said. “The full body, weight-bearing images and 3-D models improve the level of orthopedic and neurosurgical care we’re able to provide."

EOS uses two perpendicular X-rays beams that travel vertically while scanning the patient from head to toe to capture biplanar images. In less than 20 seconds, the EOS exam produces simultaneous frontal and lateral, low-dose images. The two resulting digital images are processed by EOS’ proprietary sterEOS® software to generate a 3-D model of the patient’s entire skeleton (or part of the body, such as the spine or lower limbs).

These images provide highly detailed information about a patient’s individual anatomy, allowing us to plan patient-specific treatments,” Marcella Madera, M.D., a fellowship-trained neurosurgeon specializing in minimally invasive and complex spinal surgery who practices at St. David’s Medical Center, said. This technology will be extremely beneficial for many of our spine patients, including those with complex conditions and scoliosis.”

An EOS full body exam takes less than 20 seconds for an adult and less than 15 seconds for a child.

For more information about imaging with the EOS System, visit

St. David’s Medical Center

St. David’s Medical Center is part of St. David’s HealthCare, one of the largest health systems in Texas, which was recognized in 2014 with a Malcolm Baldrige National Quality Award. Founded in 1924, St. David’s Medical Center is a full-service medical center offering comprehensive medical care at three locations—St. David’s Medical Center, Heart Hospital of Austin and St. David’s Georgetown Hospital.

Located in central Austin, St. David’s Medical Center includes a 350-bed acute care hospital and a 64-bed rehabilitation hospital providing comprehensive inpatient and outpatient care. It is home to the internationally renowned Texas Cardiac Arrhythmia Institute and St. David’s Neuroscience & Spine Institute. The hospital provides a complete range of women’s services, including its acclaimed maternity unit, maternal-fetal medicine, a high-risk maternal and neonatal transport team, the region’s largest and most sophisticated Neonatal Intensive Care Unit and The Breast Center; complex surgical services; a comprehensive Bariatric Surgery Center; and a 24-hour emergency department.

St. David’s Medical Center was recently ranked among the top hospitals in the nation by earning a five-star rating by the Centers for Medicare and Medicaid’s (CMS) new Overall Hospital Quality Star Rating system, and it was named among the nation’s 100 Top Hospitals by Truven Health Analytics from 2010 to 2017. Truven also named St. David’s Medical Center to the list of 50 Top Cardiovascular Hospitals in 2013, 2015 and 2016. The hospital earned a national distinction for patient safety from The Leapfrog Group from 2012 to 2017, and it received the 2017 Distinguished Hospital Award for Clinical Excellence from Healthgrades for the sixth consecutive year, as well as Healthgrades’ 2017 America’s 100 Best Hospitals Award™ for the third consecutive year.