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Safer imaging technique for complex aortic repair uses light instead of X-rays: Newsroom

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Carlos Timaran, M.D.

Dallas – August 12, 2022 – UT Southwestern’s new imager dramatically reduces radiation exposure, making complex aortic repair safer for patients and operating room staff. Known as the Fiber Optic RealShape (FORS) and manufactured by Philips, this device uses light to visualize blood vessels, nearly eliminating the need for X-rays typically used in minimally invasive vascular surgery.

“Complex aortic repair tends to be a lengthy procedure requiring frequent imaging during surgery. Patients and staff, including radiation technicians, will be exposed to radiation.” Endovascular Surgery at UT Southwestern. “The safety of each of these individuals is a top priority, so reducing radiation exposure during these procedures is an important goal.”

UT Southwestern is one of approximately 12 medical centers in the United States and Europe that have been selected to participate in the early implementation of FORS because of their expertise and the high volume of complex aortic repairs that specialize in this procedure. says Dr. Timaran. Dr. Timaran has completed over 300 fenestrated endovascular aortic repairs as part of his physician-sponsored Investigational Device Waiver Study. In this study, patient-specific grafts are used to support the aorta and its main branches.

As an alternative to conventional imaging, FORS devices use light that travels through hair-thin optical fibers embedded in specially designed catheters and wires to display position and shape inside the body. increase. When the device is placed inside a blood vessel, the strain on the optical fiber changes the path of light. By analyzing how light is reflected along the fiber, a computer algorithm reconstructs and visualizes the complete shape of the device. The result is a real-time three-dimensional view of her blood vessels that the surgeon can overlay on computed tomography images taken before surgery, creating a roadmap that the surgeon can view at any angle to guide the surgery. Offers. Dr. Timaran said using FORS required far fewer of his X-rays, greatly reducing patient and staff exposure.

Carlos Timarán, MD, performs aortic repair at William P. Clements Jr. University Hospital using a new imaging device that uses light instead of X-rays to visualize blood vessels.

He expects the use of FORS to expand to other vascular surgeries over time. “This technology could potentially be used for any cardiovascular procedure,” he said. “This will be the ultimate goal.”

UT Southwestern is ranked 14th in the nation for cardiology and cardiac surgery. US News & World Report Nationally recognized for its expertise in abdominal aortic aneurysm repair.

Dr. Timaran is a consultant for Philips. he is holding sam H. Phillips, Jr. MD Distinguished Chair in Surgery.

About UT Southwestern Medical Center

One of the nation’s leading academic medical centers, UT Southwestern combines pioneering biomedical research with excellence in clinical care and education. The institution’s faculty has won his six Nobel Prizes, his 26 members of the National Academy of Sciences, his 17 members of the National Academy of Medicine, and 14 Howard Hughes Medical Institute research person is included. More than 2,900 full-time faculty members are responsible for groundbreaking medical advances and are committed to rapidly translating science-driven research into new clinical treatments. A UT Southwestern physician, in more than 80 specialties, he provides care to over 100,000 inpatients, over 360,000 emergency room cases, and supervises nearly 4 million outpatient visits annually. .