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

Women With Coronary Artery Wall Thickness at Risk for Heart Disease
News | Cardiac Imaging | April 25, 2019
The thickness of the coronary artery wall as measured by magnetic resonance imaging (MRI) is an independent marker for...
Philips Unveils IntelliSpace Radiation Oncology at ESTRO 2019
News | Oncology Information Management Systems (OIMS) | April 25, 2019
Philips announced IntelliSpace Radiation Oncology, an intelligent patient management solution to manage complexity,...
ITN Wins Jesse H. Neal Award for Best Technical Content
News | Radiology Business | April 24, 2019
April 24, 2019 — Imaging Technology News (ITN) was recently named the 2019 Jesse H.
Graphic courtesy of Pixabay

Graphic courtesy of Pixabay

Feature | Artificial Intelligence | April 22, 2019 | By Greg Freiherr
...
Artificial Intelligence Performs As Well As Experienced Radiologists in Detecting Prostate Cancer
News | Artificial Intelligence | April 18, 2019
University of California Los Angeles (UCLA) researchers have developed a new artificial intelligence (AI) system to...
A smart algorithm has been trained on a neural network to recognize the appearance of breast cancer in MR images

A smart algorithm has been trained on a neural network to recognize the appearance of breast cancer in MR images. The algorithm, described at the SBI/ACR Breast Imaging Symposium, used “Deep Learning,“ a form of machine learning, which is a type of artificial intelligence. Graphic courtesy of Sarah Eskreis-Winkler, M.D.

Feature | Artificial Intelligence | April 12, 2019 | By Greg Freiherr
The use of smart algorithms has the potential to make healthcare more efficient.
Technological Advancements Expected to Drive Virtual Reality Growth in Healthcare
News | Advanced Visualization | April 04, 2019
Increasing demand for innovative diagnostic techniques, neurological disorders and increasing disease awareness are...
Videos | RSNA | April 03, 2019
ITN Editor Dave Fornell takes a tour of some of the most interesting new medical imaging technologies displa
Medivis Unveils AnatomyX Augmented Reality Education Platform
Technology | Advanced Visualization | April 02, 2019
Medical imaging and visualization company Medivis announced the launch of AnatomyX, its augmented reality (AR) platform...
Sponsored Content | Videos | Advanced Visualization | April 01, 2019
GE Healthcare goes beyond core equipment maintenance to help clients solve some of their most important asset and cli