We use cookies to understand how you use our site and to improve your experience. This includes personalizing content and advertising. To learn more, click here. By continuing to use our site, you accept our use of cookies. Cookie Policy.

Features Partner Sites Information LinkXpress
Sign In
Advertise with Us

Download Mobile App




Events

ATTENTION: Due to the COVID-19 PANDEMIC, many events are being rescheduled for a later date, converted into virtual venues, or altogether cancelled. Please check with the event organizer or website prior to planning for any forthcoming event.

Mixed Reality Display Improves Cardiac Ablation Accuracy

By HospiMedica International staff writers
Posted on 09 Sep 2020
Print article
Image: The ELVIS creates a 3D augmented reality view of the heart (Photo courtesy of WUSTL)
Image: The ELVIS creates a 3D augmented reality view of the heart (Photo courtesy of WUSTL)
A real-time holographic mixed-reality display can significantly improve the electrophysiologist's point navigation and accuracy during cardiac ablation, according to a new study.

Developed by researchers at Washington University School of Medicine (WUSTL; St. Louis, MO, USA) and Sentiar (St. Louis, MO, USA), the Enhanced Electrophysiology Visualization and Interaction System (ELVIS) combines proprietary software with the Microsoft (Redmond, WA, USA) HoloLens headset to display three-dimensional (3D) digital images from a standard 2D electroanatomic mapping system (EAMS), along with real-time catheter locations.

The result is an augmented reality platform with real-time holographic visualization of the patient's actual anatomy "floating" over the surgical field, allowing electrophysiologists to perform the procedure by using their gaze to guide the controls. For the study, two electrophysiologists were trained on ELVIS, and then tested the system on 16 patients undergoing electrophysiology studies. The physicians were given 60 seconds to navigate to each of five target points within the geometry of the heart, using both the 3D ELVIS and standard 2D EAMS technology.

The results showed there was no difference in navigation times with either ELVIS or EAMS, but the physicians were significantly more accurate with ELVIS, with an error margin of just 2.99 mm, compared to 4.50 mm for EAMS. When translated to cardiac ablation outcomes, 34% of the ablation lesions created using EAMS would be made outside of the target area, as opposed to just 6% when using the ELVIS 3D display. The study was published on August 17, 2020, in Journal of the American College of Cardiology: Clinical Electrophysiology.

“Given the widespread promise of this technology, mixed reality has the potential to overtake and aggregate current displays in the cardiac catheterization laboratory,” concluded lead author Jennifer Silva, MD, director of pediatric electrophysiology at WUSTL. “What ended up being equally important, if not more important, was that…not only that we can visualize it better, but that we can control it. There are people working in this extended reality space who have come to conclusions that the control is the strongest value-add, particularly in medical applications.”

Catheter ablation is an invasive procedure used to obliterate faulty electrical pathways in the heart using radiofrequency (RF) energy in people suffering from cardiac arrhythmias such as atrial fibrillation (AF), atrial flutter, supraventricular tachycardias (SVT), and Wolff-Parkinson-White syndrome.

Related Links:
Washington University School of Medicine
Sentiar
Microsoft



Print article
IIR Middle East

Channels

Critical Care

view channel
Image: Three dimensional measurement of the all-mesh thermistor (Photo courtesy of Shinshu University)

Ultraflexible, Gas-Permeable Thermistors to Pave Way for On-Skin Medical Sensors and Implantable Devices

On-skin medical sensors and wearable health devices are important health care tools that must be incredibly flexible and ultrathin so they can move with the human body. In addition, the technology has... Read more

Patient Care

view channel
Image: The biomolecular film can be picked up with tweezers and placed onto a wound (Photo courtesy of TUM)

Biomolecular Wound Healing Film Adheres to Sensitive Tissue and Releases Active Ingredients

Conventional bandages may be very effective for treating smaller skin abrasions, but things get more difficult when it comes to soft-tissue injuries such as on the tongue or on sensitive surfaces like... Read more

Health IT

view channel
Image: Using digital data can improve health outcomes (Photo courtesy of Unsplash)

Electronic Health Records May Be Key to Improving Patient Care, Study Finds

When a patient gets transferred from a hospital to a nearby specialist or rehabilitation facility, it is often difficult for personnel at the new facility to access the patient’s electronic health records... Read more
Copyright © 2000-2022 Globetech Media. All rights reserved.