Biplane roentgen videometric system for dynamic (60/Sec) studies of the shape and size of circulatory structures, particularly the left ventricle

Erik L. Ritman; Ralph E. Sturm; Earl H. Wood

doi:10.1016/S0002-9149(73)80118-3

Biplane roentgen videometric system for dynamic (60/Sec) studies of the shape and size of circulatory structures, particularly the left ventricle

Erik L. Ritman, Ralph E. Sturm, Earl H. Wood

Physiology & Biomedical Engineering

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

An operator interactive video system for the measurement of roentgen angiographically outlined structures is described. Left ventricular volume and three-dimensional shapes are calculated from up to 200 pairs of diameters measured from ventriculograms at the rate of 60 pairs of biplane images per second. The accuracy and reproducibility of volumes calculated by the system were established by analysis of roentgenograms of inanimate objects of known volume and by comparison of left ventricular stroke volumes calculated by the system with the stroke volumes calculated by indicator-dilution technique and aortic root electromagnetic flowmeter. Computer-generated display of the large amounts of data obtained by the videometry system is described.

Original language	English (US)
Pages (from-to)	180-187
Number of pages	8
Journal	The American journal of cardiology
Volume	32
Issue number	2
DOIs	https://doi.org/10.1016/S0002-9149(73)80118-3
State	Published - 1973

ASJC Scopus subject areas

Cardiology and Cardiovascular Medicine

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10.1016/S0002-9149(73)80118-3

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@article{52d53cbd495f4f07bc2b4857e47ea535,

title = "Biplane roentgen videometric system for dynamic (60/Sec) studies of the shape and size of circulatory structures, particularly the left ventricle",

abstract = "An operator interactive video system for the measurement of roentgen angiographically outlined structures is described. Left ventricular volume and three-dimensional shapes are calculated from up to 200 pairs of diameters measured from ventriculograms at the rate of 60 pairs of biplane images per second. The accuracy and reproducibility of volumes calculated by the system were established by analysis of roentgenograms of inanimate objects of known volume and by comparison of left ventricular stroke volumes calculated by the system with the stroke volumes calculated by indicator-dilution technique and aortic root electromagnetic flowmeter. Computer-generated display of the large amounts of data obtained by the videometry system is described.",

author = "Ritman, {Erik L.} and Sturm, {Ralph E.} and Wood, {Earl H.}",

note = "Funding Information: From the Mayo Clinic and Mayo Foundation, Rochester, Minn. This investigation was supported in part by Research Grants HE-4664, FR-7, and HE-3532 from the National Institutes of Health, Public Health Service; by Grant NGR-24-003-001 from the National Aeronautics and Space Administration; and by Grants AHA C1-10 and AHA CIF-69-073 from the American Heart Association. * Postdoctoral Research Fellow of the Minnesota Heart Association. l'Career Investigator of the American Heart Association. Address for reprints: Earl H. Wood, MD, Mayo Clinic, 200 First St. Southwest, Rochester, Minn. 55901.",

year = "1973",

doi = "10.1016/S0002-9149(73)80118-3",

language = "English (US)",

volume = "32",

pages = "180--187",

journal = "The American journal of cardiology",

issn = "0002-9149",

publisher = "Elsevier Inc.",

number = "2",

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TY - JOUR

T1 - Biplane roentgen videometric system for dynamic (60/Sec) studies of the shape and size of circulatory structures, particularly the left ventricle

AU - Ritman, Erik L.

AU - Sturm, Ralph E.

AU - Wood, Earl H.

N1 - Funding Information: From the Mayo Clinic and Mayo Foundation, Rochester, Minn. This investigation was supported in part by Research Grants HE-4664, FR-7, and HE-3532 from the National Institutes of Health, Public Health Service; by Grant NGR-24-003-001 from the National Aeronautics and Space Administration; and by Grants AHA C1-10 and AHA CIF-69-073 from the American Heart Association. * Postdoctoral Research Fellow of the Minnesota Heart Association. l'Career Investigator of the American Heart Association. Address for reprints: Earl H. Wood, MD, Mayo Clinic, 200 First St. Southwest, Rochester, Minn. 55901.

PY - 1973

Y1 - 1973

N2 - An operator interactive video system for the measurement of roentgen angiographically outlined structures is described. Left ventricular volume and three-dimensional shapes are calculated from up to 200 pairs of diameters measured from ventriculograms at the rate of 60 pairs of biplane images per second. The accuracy and reproducibility of volumes calculated by the system were established by analysis of roentgenograms of inanimate objects of known volume and by comparison of left ventricular stroke volumes calculated by the system with the stroke volumes calculated by indicator-dilution technique and aortic root electromagnetic flowmeter. Computer-generated display of the large amounts of data obtained by the videometry system is described.

AB - An operator interactive video system for the measurement of roentgen angiographically outlined structures is described. Left ventricular volume and three-dimensional shapes are calculated from up to 200 pairs of diameters measured from ventriculograms at the rate of 60 pairs of biplane images per second. The accuracy and reproducibility of volumes calculated by the system were established by analysis of roentgenograms of inanimate objects of known volume and by comparison of left ventricular stroke volumes calculated by the system with the stroke volumes calculated by indicator-dilution technique and aortic root electromagnetic flowmeter. Computer-generated display of the large amounts of data obtained by the videometry system is described.

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JO - The American journal of cardiology

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ER -

Biplane roentgen videometric system for dynamic (60/Sec) studies of the shape and size of circulatory structures, particularly the left ventricle

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