ECG-triggered snapshot MR imaging of the heart

Yu Liu, Stephen J. Riederer, Donna G. Brown, Ronald C. Wright, Anna E. Holsinger, Roger C. Grimm, Richard L. Ehman

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


A method is described for imaging the heart using magnetic resonance (MR) in which a new image is formed in real-time every cardiac cycle. Scan parameters like the electrocardiogram (ECG) trigger delay, enabling/disabling presaturation pulses and interactive adjustment of oblique angulation are controlled by the operator while the scan is proceeding. An image acquisition time under 400 msec is attained via a GRASS pulse sequence using an ultra-short TR time of 8.1 msec, and 48 phase encoding views. Myocardium/blood contrast is enhanced via application of saturation pulses prior to data acquisition. Reconstruction is performed instantaneously using instrumentation developed in our laboratory. Additional equipment modifications enable real-time interactive control of oblique angulation and other imaging parameters.

Original languageEnglish (US)
Title of host publicationComputers in Cardiology
PublisherPubl by IEEE
Number of pages4
ISBN (Print)0818622253
StatePublished - May 1991
EventComputers in Cardiology - Proceedings - Chicago, IL, USA
Duration: Sep 23 1990Sep 26 1990

Publication series

NameComputers in Cardiology
ISSN (Print)0276-6574


OtherComputers in Cardiology - Proceedings
CityChicago, IL, USA

ASJC Scopus subject areas

  • Computer Science Applications
  • Cardiology and Cardiovascular Medicine


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