Noninvasive identification of acute myocardial ischemia and reperfusion with contrast ultrasound using intravenous perfluoropropane-exposed sonicated dextrose albumin

Thomas Richard Porter, Feng Xie, Alan Kricsfeld, Karen Kilzer

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

Objectives.: The purpose of this study was to determine whether intravenous dextrose albumin sonicated with a commonly used gas of low blood solubility and diffusivity (perfluoropropane) could identify acute myocardial Ischemia and reperfusion. Background.: Recently, it has been demonstrated that dextrose albumin sonicated with gases that have low blood solubility and diffusivity results in microbubbles capable of consistently producing myocardial ultrasound contrast after intravenous injection. It remains to be determined, however, whether this contrast agent can visually detect the myocardial blood flow abnormalities seen with acute Ischemia or stunned myocardium after reperfusion. Methods.: We gave intravenous injections (0.06 ml/kg body weight) of perfluoropropane-exposed sonicated dextrose albumin to 10 open chest dogs. The measured degree of myocardial contrast (0+ to 2+) and background-subtracted peak anterior myocardial videointensity produced from each injection were measured at three stages: 1) under baseline conditions, 2) during acute Ischemia produced by a proximal left anterior descending coronary artery ligation lasting 10 to 120 min, and 3) after reflow was established. Coronary blood flow was monitored during all injections by using an ultrasound flow probe placed around the left anterior descending artery. Results.: Coronary blood flow ranged from 0 to 137 ml/min, and peak myocardial videointensity after intravenous administration of perfluoropropane-exposed sonicated dextrose albumin ranged from 0 to 70 gray scale U. There was consistent visual myocardial opacification in all dogs during baseline conditions and a visually evident decrease in myocardial contrast in the left anterior descending artery distribution after ligation. A relative increase in contrast in this same distribution after intravenous contrast agent administration occurred in 7 of the 10 dogs during reflow. Quantitatively, there was an excellent correlation in individual dogs between peak myocardial videointensity and coronary flow at all stages (mean correlation coefficient 0.95 ± 0.04, range 0.87 to 0.99). Conclusions.: Perfluoropropane-exposed sonicated dextrose albumin is an ultrasound contrast agent that can visually identify myocardial perfusion abnormalities from a peripheral venous injection.

Original languageEnglish (US)
Pages (from-to)33-40
Number of pages8
JournalJournal of the American College of Cardiology
Volume26
Issue number1
DOIs
StatePublished - Jul 1995

Fingerprint

perflutren
Myocardial Reperfusion
Myocardial Ischemia
Albumins
Glucose
Dogs
Contrast Media
Intravenous Injections
Solubility
Injections
Ligation
Ischemia
Arteries
Gases
Myocardial Stunning
Microbubbles
Intravenous Administration
Reperfusion
Coronary Vessels
Thorax

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

@article{a0313ab6184349cf8d11cbbf430ca874,
title = "Noninvasive identification of acute myocardial ischemia and reperfusion with contrast ultrasound using intravenous perfluoropropane-exposed sonicated dextrose albumin",
abstract = "Objectives.: The purpose of this study was to determine whether intravenous dextrose albumin sonicated with a commonly used gas of low blood solubility and diffusivity (perfluoropropane) could identify acute myocardial Ischemia and reperfusion. Background.: Recently, it has been demonstrated that dextrose albumin sonicated with gases that have low blood solubility and diffusivity results in microbubbles capable of consistently producing myocardial ultrasound contrast after intravenous injection. It remains to be determined, however, whether this contrast agent can visually detect the myocardial blood flow abnormalities seen with acute Ischemia or stunned myocardium after reperfusion. Methods.: We gave intravenous injections (0.06 ml/kg body weight) of perfluoropropane-exposed sonicated dextrose albumin to 10 open chest dogs. The measured degree of myocardial contrast (0+ to 2+) and background-subtracted peak anterior myocardial videointensity produced from each injection were measured at three stages: 1) under baseline conditions, 2) during acute Ischemia produced by a proximal left anterior descending coronary artery ligation lasting 10 to 120 min, and 3) after reflow was established. Coronary blood flow was monitored during all injections by using an ultrasound flow probe placed around the left anterior descending artery. Results.: Coronary blood flow ranged from 0 to 137 ml/min, and peak myocardial videointensity after intravenous administration of perfluoropropane-exposed sonicated dextrose albumin ranged from 0 to 70 gray scale U. There was consistent visual myocardial opacification in all dogs during baseline conditions and a visually evident decrease in myocardial contrast in the left anterior descending artery distribution after ligation. A relative increase in contrast in this same distribution after intravenous contrast agent administration occurred in 7 of the 10 dogs during reflow. Quantitatively, there was an excellent correlation in individual dogs between peak myocardial videointensity and coronary flow at all stages (mean correlation coefficient 0.95 ± 0.04, range 0.87 to 0.99). Conclusions.: Perfluoropropane-exposed sonicated dextrose albumin is an ultrasound contrast agent that can visually identify myocardial perfusion abnormalities from a peripheral venous injection.",
author = "Porter, {Thomas Richard} and Feng Xie and Alan Kricsfeld and Karen Kilzer",
year = "1995",
month = "7",
doi = "10.1016/0735-1097(95)00132-J",
language = "English (US)",
volume = "26",
pages = "33--40",
journal = "Journal of the American College of Cardiology",
issn = "0735-1097",
publisher = "Elsevier USA",
number = "1",

}

TY - JOUR

T1 - Noninvasive identification of acute myocardial ischemia and reperfusion with contrast ultrasound using intravenous perfluoropropane-exposed sonicated dextrose albumin

AU - Porter, Thomas Richard

AU - Xie, Feng

AU - Kricsfeld, Alan

AU - Kilzer, Karen

PY - 1995/7

Y1 - 1995/7

N2 - Objectives.: The purpose of this study was to determine whether intravenous dextrose albumin sonicated with a commonly used gas of low blood solubility and diffusivity (perfluoropropane) could identify acute myocardial Ischemia and reperfusion. Background.: Recently, it has been demonstrated that dextrose albumin sonicated with gases that have low blood solubility and diffusivity results in microbubbles capable of consistently producing myocardial ultrasound contrast after intravenous injection. It remains to be determined, however, whether this contrast agent can visually detect the myocardial blood flow abnormalities seen with acute Ischemia or stunned myocardium after reperfusion. Methods.: We gave intravenous injections (0.06 ml/kg body weight) of perfluoropropane-exposed sonicated dextrose albumin to 10 open chest dogs. The measured degree of myocardial contrast (0+ to 2+) and background-subtracted peak anterior myocardial videointensity produced from each injection were measured at three stages: 1) under baseline conditions, 2) during acute Ischemia produced by a proximal left anterior descending coronary artery ligation lasting 10 to 120 min, and 3) after reflow was established. Coronary blood flow was monitored during all injections by using an ultrasound flow probe placed around the left anterior descending artery. Results.: Coronary blood flow ranged from 0 to 137 ml/min, and peak myocardial videointensity after intravenous administration of perfluoropropane-exposed sonicated dextrose albumin ranged from 0 to 70 gray scale U. There was consistent visual myocardial opacification in all dogs during baseline conditions and a visually evident decrease in myocardial contrast in the left anterior descending artery distribution after ligation. A relative increase in contrast in this same distribution after intravenous contrast agent administration occurred in 7 of the 10 dogs during reflow. Quantitatively, there was an excellent correlation in individual dogs between peak myocardial videointensity and coronary flow at all stages (mean correlation coefficient 0.95 ± 0.04, range 0.87 to 0.99). Conclusions.: Perfluoropropane-exposed sonicated dextrose albumin is an ultrasound contrast agent that can visually identify myocardial perfusion abnormalities from a peripheral venous injection.

AB - Objectives.: The purpose of this study was to determine whether intravenous dextrose albumin sonicated with a commonly used gas of low blood solubility and diffusivity (perfluoropropane) could identify acute myocardial Ischemia and reperfusion. Background.: Recently, it has been demonstrated that dextrose albumin sonicated with gases that have low blood solubility and diffusivity results in microbubbles capable of consistently producing myocardial ultrasound contrast after intravenous injection. It remains to be determined, however, whether this contrast agent can visually detect the myocardial blood flow abnormalities seen with acute Ischemia or stunned myocardium after reperfusion. Methods.: We gave intravenous injections (0.06 ml/kg body weight) of perfluoropropane-exposed sonicated dextrose albumin to 10 open chest dogs. The measured degree of myocardial contrast (0+ to 2+) and background-subtracted peak anterior myocardial videointensity produced from each injection were measured at three stages: 1) under baseline conditions, 2) during acute Ischemia produced by a proximal left anterior descending coronary artery ligation lasting 10 to 120 min, and 3) after reflow was established. Coronary blood flow was monitored during all injections by using an ultrasound flow probe placed around the left anterior descending artery. Results.: Coronary blood flow ranged from 0 to 137 ml/min, and peak myocardial videointensity after intravenous administration of perfluoropropane-exposed sonicated dextrose albumin ranged from 0 to 70 gray scale U. There was consistent visual myocardial opacification in all dogs during baseline conditions and a visually evident decrease in myocardial contrast in the left anterior descending artery distribution after ligation. A relative increase in contrast in this same distribution after intravenous contrast agent administration occurred in 7 of the 10 dogs during reflow. Quantitatively, there was an excellent correlation in individual dogs between peak myocardial videointensity and coronary flow at all stages (mean correlation coefficient 0.95 ± 0.04, range 0.87 to 0.99). Conclusions.: Perfluoropropane-exposed sonicated dextrose albumin is an ultrasound contrast agent that can visually identify myocardial perfusion abnormalities from a peripheral venous injection.

UR - http://www.scopus.com/inward/record.url?scp=0029057163&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029057163&partnerID=8YFLogxK

U2 - 10.1016/0735-1097(95)00132-J

DO - 10.1016/0735-1097(95)00132-J

M3 - Article

C2 - 7797773

AN - SCOPUS:0029057163

VL - 26

SP - 33

EP - 40

JO - Journal of the American College of Cardiology

JF - Journal of the American College of Cardiology

SN - 0735-1097

IS - 1

ER -