Dynamic intramyocardial blood volume: Evaluation with a radiological opaque marker method

Y. H. Liu, R. C. Bahn, E. L. Ritman

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

In this study the change of intramyocardial blood volume within one cardiac cycle was deduced from the time sequence of the volume delineated by radiopaque markers attached to the left ventricular wall. These data were compared with the change in the volume of the same region of myocardium estimated from the change in angiographic opacification of the heart wall. Five dogs were anesthetized, and four pairs of 2-mm-diameter lead beads were attached to the epicardial and endocardial regions. Two scans using the dynamic spatial reconstructor (a high-speed computed tomographic scanner) were performed during aortograms, one under control conditions and the other during adenosine infusion. The results have shown that the increases of myocardial volume defined by the beads (ΔV(bead), % of volume at control) were comparable to the increase of intramyocardial blood volumes estimated by the increase in wall opacity (ΔV(blood), % of muscle); ΔV(blood) = 0.93 ΔV(bead) + 1.54%; r = 0.987.

Original languageEnglish (US)
JournalAmerican Journal of Physiology - Heart and Circulatory Physiology
Volume263
Issue number3 32-3
StatePublished - 1992

Fingerprint

Blood Volume
Adenosine
Myocardium
Dogs
Muscles
Lead

Keywords

  • angiography
  • X-ray computed tomography

ASJC Scopus subject areas

  • Physiology

Cite this

Dynamic intramyocardial blood volume : Evaluation with a radiological opaque marker method. / Liu, Y. H.; Bahn, R. C.; Ritman, E. L.

In: American Journal of Physiology - Heart and Circulatory Physiology, Vol. 263, No. 3 32-3, 1992.

Research output: Contribution to journalArticle

@article{270ddbf404ef40aabfa85743b72a71b2,
title = "Dynamic intramyocardial blood volume: Evaluation with a radiological opaque marker method",
abstract = "In this study the change of intramyocardial blood volume within one cardiac cycle was deduced from the time sequence of the volume delineated by radiopaque markers attached to the left ventricular wall. These data were compared with the change in the volume of the same region of myocardium estimated from the change in angiographic opacification of the heart wall. Five dogs were anesthetized, and four pairs of 2-mm-diameter lead beads were attached to the epicardial and endocardial regions. Two scans using the dynamic spatial reconstructor (a high-speed computed tomographic scanner) were performed during aortograms, one under control conditions and the other during adenosine infusion. The results have shown that the increases of myocardial volume defined by the beads (ΔV(bead), {\%} of volume at control) were comparable to the increase of intramyocardial blood volumes estimated by the increase in wall opacity (ΔV(blood), {\%} of muscle); ΔV(blood) = 0.93 ΔV(bead) + 1.54{\%}; r = 0.987.",
keywords = "angiography, X-ray computed tomography",
author = "Liu, {Y. H.} and Bahn, {R. C.} and Ritman, {E. L.}",
year = "1992",
language = "English (US)",
volume = "263",
journal = "American Journal of Physiology - Renal Fluid and Electrolyte Physiology",
issn = "1931-857X",
publisher = "American Physiological Society",
number = "3 32-3",

}

TY - JOUR

T1 - Dynamic intramyocardial blood volume

T2 - Evaluation with a radiological opaque marker method

AU - Liu, Y. H.

AU - Bahn, R. C.

AU - Ritman, E. L.

PY - 1992

Y1 - 1992

N2 - In this study the change of intramyocardial blood volume within one cardiac cycle was deduced from the time sequence of the volume delineated by radiopaque markers attached to the left ventricular wall. These data were compared with the change in the volume of the same region of myocardium estimated from the change in angiographic opacification of the heart wall. Five dogs were anesthetized, and four pairs of 2-mm-diameter lead beads were attached to the epicardial and endocardial regions. Two scans using the dynamic spatial reconstructor (a high-speed computed tomographic scanner) were performed during aortograms, one under control conditions and the other during adenosine infusion. The results have shown that the increases of myocardial volume defined by the beads (ΔV(bead), % of volume at control) were comparable to the increase of intramyocardial blood volumes estimated by the increase in wall opacity (ΔV(blood), % of muscle); ΔV(blood) = 0.93 ΔV(bead) + 1.54%; r = 0.987.

AB - In this study the change of intramyocardial blood volume within one cardiac cycle was deduced from the time sequence of the volume delineated by radiopaque markers attached to the left ventricular wall. These data were compared with the change in the volume of the same region of myocardium estimated from the change in angiographic opacification of the heart wall. Five dogs were anesthetized, and four pairs of 2-mm-diameter lead beads were attached to the epicardial and endocardial regions. Two scans using the dynamic spatial reconstructor (a high-speed computed tomographic scanner) were performed during aortograms, one under control conditions and the other during adenosine infusion. The results have shown that the increases of myocardial volume defined by the beads (ΔV(bead), % of volume at control) were comparable to the increase of intramyocardial blood volumes estimated by the increase in wall opacity (ΔV(blood), % of muscle); ΔV(blood) = 0.93 ΔV(bead) + 1.54%; r = 0.987.

KW - angiography

KW - X-ray computed tomography

UR - http://www.scopus.com/inward/record.url?scp=0026753397&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026753397&partnerID=8YFLogxK

M3 - Article

C2 - 1415624

AN - SCOPUS:0026753397

VL - 263

JO - American Journal of Physiology - Renal Fluid and Electrolyte Physiology

JF - American Journal of Physiology - Renal Fluid and Electrolyte Physiology

SN - 1931-857X

IS - 3 32-3

ER -