Spatio-temporal visualization of regional myocardial velocities

A. Sheharyar, T. Chitiboi, E. Keller, O. Rahman, S. Schnell, M. Markl, O. Bouhali, L. Linsen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

Cardiovascular disease is the leading cause of death worldwide according to the World Health Organization (WHO). Nearly half of all heart failures occur due to the decline in the performance of the left ventricle (LV). Therefore, early detection, monitoring, and accurate diagnosis of LV pathologies are of critical importance. Usually, global cardiac function parameters are used to assess the cardiac structure and function, although regional abnormalities are important biomarkers of several cardiac diseases. Regional motion of the myocardium, the muscular wall of the LV, can be captured in a non-invasive manner using the velocity-encoded magnetic resonance (MR) imaging method known as Tissue Phase Mapping (TPM). To analyze the complex motion pattern, one typically visualizes for each time step the radial, longitudinal, and circumferential velocities separately according to the American Heart Association (AHA) model, which makes the comprehension of the spatio-temporal pattern an extremely challenging cognitive task. We propose novel spatio-temporal visualization methods for LV myocardial motion analysis with less cognitive load. Our approach uses coordinated views for navigating through the data space. One view visualizes individual time steps, which can be scrolled or animated, while a second view visualizes the temporal evolution using the radial layout of a polar plot for the time dimension. Different designs for visual encoding were considered in both views and evaluated with medical experts to demonstrate and compare their effectiveness and intuitiveness for detecting and analyzing regional abnormalities.

Original languageEnglish (US)
Title of host publicationVCBM 2016 - Eurographics Workshop on Visual Computing for Biology and Medicine
PublisherEurographics Association
Pages89-98
Number of pages10
ISBN (Electronic)9783038680109
DOIs
StatePublished - 2016
Event2016 Eurographics Workshop on Visual Computing for Biology and Medicine, VCBM 2016 - Bergen, Norway
Duration: Sep 7 2016Sep 9 2016

Publication series

NameVCBM 2016 - Eurographics Workshop on Visual Computing for Biology and Medicine

Conference

Conference2016 Eurographics Workshop on Visual Computing for Biology and Medicine, VCBM 2016
CountryNorway
CityBergen
Period9/7/169/9/16

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Biomedical Engineering

Fingerprint Dive into the research topics of 'Spatio-temporal visualization of regional myocardial velocities'. Together they form a unique fingerprint.

Cite this