News | February 07, 2011

MRI Software Visualizes Interior Structures in Motion

February 8, 2011 – Researchers at the University of Southern California have developed an algorithm to produce animated magnetic resonance imaging (MRI) scans of body parts or organs in motion. Volume scans of human bodies have a variety of uses in medical diagnosis and research; however, these scans usually do not show the body in movement.

The new algorithm can reconstruct an animated representation of any area of the body. Skeletal joints of the reconstructed representation can be moved with a 3-D animation program and the soft tissues deform interactively and realistically according to the MRI scan data. The preliminary application is for orthopedic evaluation, but the software could also be applied for organ movement, such as the heart or lungs.

The underlying approach is an intelligent example-based interpolation technique called volume blend deformation. The challenge in applying this technique is accurate registration of scans in different poses. This required the development of a new hierarchical skeleton-guided registration step. Although the registration requires many hours of pre-computation, the final result can be animated interactively.

The new algorithm will be particularly valuable in visualizing problems related to movement, since it visualizes the internal structures in motion. Applications include medical research and education, investigation of sports injuries, patient education and others. Applications in ergonomics are also possible, since the system can capture the position of skin that is occluded due to grasping or other contact.

The work was done in conjunction with Samsung Advanced Institute of Technology and researchers from Weta Digital and Victoria University in Wellington, New Zealand. It will be published in the March 2011 issue of the journal IEEE Transactions on Visualization and Computer Graphics (Taehyun Rhee, J.P. Lewis, Ulrich Neumann and Krishna Nayak, “Scan-Based Volume Animation Driven by Locally Adaptive Articulated Registrations.” IEEE Transactions on Visualization and Computer Graphics, March 2011, 17, 3, pp. 368—379.)

For more information: www.ncbi.nlm.nih.gov/pubmed/21233517, http://scribblethink.org/Work/VisibleHuman/index.html

Related Content

HeartVista Announces One Click Autonomous MRI Solution
News | Magnetic Resonance Imaging (MRI) | November 25, 2018
HeartVista announced its artificial intelligence (AI)-driven, One-Click Autonomous MRI acquisition software for cardiac...
Carotid Artery MRI Improves Cardiovascular Disease Risk Assessment
News | Magnetic Resonance Imaging (MRI) | October 23, 2018
Magnetic resonance imaging (MRI) measurements of wall thickness in the carotid arteries improve cardiovascular disease...
FDA Clears Magnetom Sola 1.5T MRI From Siemens Healthineers
Technology | Magnetic Resonance Imaging (MRI) | October 09, 2018
The U.S. Food and Drug Administration (FDA) has cleared the Magnetom Sola, a 1.5 Tesla magnetic resonance imaging (MRI...
Stress Cardiac MRI Shows High Prognostic Value for Suspected Ischemia Patients
News | Magnetic Resonance Imaging (MRI) | September 17, 2018
Raymond Kwong, M.D., MPH, from the Harvard Medical School recently presented his findings on a study of how single-...
Rapid Cardiac MRI Technique May Cut Costs, Boost Care in Developing World
News | Magnetic Resonance Imaging (MRI) | August 29, 2018
A newly developed rapid imaging protocol quickly and cheaply diagnosed heart ailments in patients in Peru, according to...
Videos | Magnetic Resonance Imaging (MRI) | August 13, 2018
Haojie Wang, M.D., director of advanced cardiovascular MRI and a member of the heart valve clinic at Baylor Scott Whi
High Prevalence of Atherosclerosis Found in Lower Risk Patients
News | Magnetic Resonance Imaging (MRI) | June 08, 2018
Whole-body magnetic resonance angiography (MRA) found a surprisingly high prevalence of atherosclerosis in people...
A cardiac MRI scanner at the Houston Methodist DeBakey Heart and Vascular Center. There is growing concern that gadolinium contrast may cause chronic health problems in some patients.

A cardiac MRI scanner at the Houston Methodist DeBakey Heart and Vascular Center. There is growing concern that gadolinium contrast may cause chronic health problems in some patients.

Feature | Magnetic Resonance Imaging (MRI) | February 28, 2018 | Dave Fornell
One of the biggest concerns in radiology in recent years is the safety of gadolinium-based contrast agents (GBCAs) us
Contrast-Free Cardiac MRI May Better Assess Need for Mitral Valve Surgery
News | Magnetic Resonance Imaging (MRI) | February 27, 2018
A new study published in the Journal of the American College of Cardiology confirms non-invasive cardiac magnetic...
The FDA has cleared the Toshiba Vantage Galan 3.0T XGO Edition MRI from Canon Medical Systems.
Technology | Magnetic Resonance Imaging (MRI) | February 12, 2018
February 12, 2018 — Physicians now have access to more neuro and cardiac ...
Overlay Init