Myocardial perfusion imaging using contrast echocardiography

Menachem Halmann, Shimon Reisner, Rafael Beyar

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

1 Scopus citations


A program for objective automatic mapping of myocardial perfusion was developed. The program acquires a sequence of end-diastolic ultrasound images, using automatic echocardiography gating. Each image is divided into multiple regions of interest. The division is done either manually tracing the endocardial and epicardial borders, or automatically, using a running square window which covers the entire image. The analysis is based on changes in the local video intensity levels (range: 0...255). In each segment the background (pre-injection) level is subtracted throughout the sequence of images, and the relative local perfusion is estimated from the washout curve by calculating parameters such as peak intensity, area under washout curve, and time to peak. From these values a new color coded image, in which hot colors represent normal regions, and cold colors represent ischemic regions, is generated. Regional function of the same slice is calculated by a wall thickening algorithm, measuring the relative change in wall thickness from end-diastole to end-systole.

Original languageEnglish (US)
Title of host publicationComputers in Cardiology
PublisherPubl by IEEE
Number of pages3
ISBN (Print)0818622253
StatePublished - May 1991
Externally publishedYes
EventComputers in Cardiology - Proceedings - Chicago, IL, USA
Duration: Sep 23 1990Sep 26 1990


OtherComputers in Cardiology - Proceedings
CityChicago, IL, USA

ASJC Scopus subject areas

  • Software
  • Cardiology and Cardiovascular Medicine


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