Acquisition, processing and display of gated cardiac scintigrams

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An improved method for non-traumatic and essentially noninvasive evaluation of left ventricular (LV) function with /sup 99m/Tc as the tracer was developed. This method combines previously used EKG gating techniques for cardiac blood pool visualization with new computerized acquisition, processing and display techniques. An Anger camera, a small computer, and a physiological synchronizer are used to acquire a sequence of eight scintigrams which span the entire cardiac cycle. Under our present protocol two twenty-minute sequences are obtained, one an LAO (50$sup 0$) projection, the other an RAO (30$sup 0$) projection. Subsequently these images are processed on-line with a digital filter ... continued below

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4 p.

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Alpert, N. M.; Chesler, D. A.; McKusick, K. A.; Potsaid, M. S.; Pohost, G. M. & Dinsmore, R. A. January 1, 1974.

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Description

An improved method for non-traumatic and essentially noninvasive evaluation of left ventricular (LV) function with /sup 99m/Tc as the tracer was developed. This method combines previously used EKG gating techniques for cardiac blood pool visualization with new computerized acquisition, processing and display techniques. An Anger camera, a small computer, and a physiological synchronizer are used to acquire a sequence of eight scintigrams which span the entire cardiac cycle. Under our present protocol two twenty-minute sequences are obtained, one an LAO (50$sup 0$) projection, the other an RAO (30$sup 0$) projection. Subsequently these images are processed on-line with a digital filter to increase definition of the cardiac borders. The eight images are then displayed sequentially on a specially designed electronic monitor to give an impression of the beating heart somewhat analogous to that obtained with invasive contrast angiography. (auth)

Physical Description

4 p.

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Dep. NTIS

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  • 4. symposium on sharing of computer programs and technology in nuclear medicine, Oak Ridge, Tennessee, USA, 8 May 1974

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  • Report No.: COO--3333-11
  • Report No.: CONF-740531--1
  • Grant Number: AT(11-1)-3333
  • Office of Scientific & Technical Information Report Number: 4142774
  • Archival Resource Key: ark:/67531/metadc869989

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1974

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

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  • Oct. 10, 2017, 8:42 p.m.

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Alpert, N. M.; Chesler, D. A.; McKusick, K. A.; Potsaid, M. S.; Pohost, G. M. & Dinsmore, R. A. Acquisition, processing and display of gated cardiac scintigrams, article, January 1, 1974; United States. (digital.library.unt.edu/ark:/67531/metadc869989/: accessed December 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.