Detection of Remote Myocardial Infarction With Quantitative Real-Time Ultrasonic Characterization

Benico Barzilai; Lewis J. Thomas; Robert M. Glueck; Jeffrey E. Saffitz; Zvi Vered; Burton E. Sobel; James G. Miller; Julio E. Pérez

doi:10.1016/S0894-7317(88)80073-7

Detection of Remote Myocardial Infarction With Quantitative Real-Time Ultrasonic Characterization

Benico Barzilai, Lewis J. Thomas, Robert M. Glueck, Jeffrey E. Saffitz, Zvi Vered, Burton E. Sobel, James G. Miller, Julio E. Pérez

Division of Cardiology

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

26 Scopus citations

Abstract

We have previously shown that the intrinsic properties of myocardium can be characterized quantitatively by the assessment of ultrasonic integrated backscatter. In this study we utilized a novel, real-time, two-dimensional system capable of quantitative integrated backscatter imaging to determine whether zones of remote myocardial infarction in dogs could be delineated definitively by ultrasonic tissue characterization. Detection of such zones in patients is needed as a basis for management decisions related to thrombolysis, angioplasty, and coronary surgery. Integrated backscatter was measured through the closed chest from 25 myocardial sites. Zones of infarction exhibited time-averaged integrated backscatter values approximately 10 dB (9.5 ± 0.5 dB, standard error of the mean) greater than those in normal regions (p < 0.001). In addition, the physiologic cardiac cycle-dependent variation of integrated backscatter was blunted significantly in zones of infarction [0.8 dB ± 0.3 vs. 3.8 ± 0.6 (p < 0.01) for normal regions]. Ultrasonic results matched the histopathologic features assessed directly. Thus quantitative ultrasonic tissue characterization can differentiate infarcted tissue from normal myocardium and offers promise for quantitative detection of histopathology in vivo.

Original language	English
Pages (from-to)	179-186
Number of pages	8
Journal	Journal of the American Society of Echocardiography
Volume	1
Issue number	3
DOIs	https://doi.org/10.1016/S0894-7317(88)80073-7
State	Published - 1988

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@article{84508bc2b6664b46b61ac26bc999071f,

title = "Detection of Remote Myocardial Infarction With Quantitative Real-Time Ultrasonic Characterization",

abstract = "We have previously shown that the intrinsic properties of myocardium can be characterized quantitatively by the assessment of ultrasonic integrated backscatter. In this study we utilized a novel, real-time, two-dimensional system capable of quantitative integrated backscatter imaging to determine whether zones of remote myocardial infarction in dogs could be delineated definitively by ultrasonic tissue characterization. Detection of such zones in patients is needed as a basis for management decisions related to thrombolysis, angioplasty, and coronary surgery. Integrated backscatter was measured through the closed chest from 25 myocardial sites. Zones of infarction exhibited time-averaged integrated backscatter values approximately 10 dB (9.5 ± 0.5 dB, standard error of the mean) greater than those in normal regions (p < 0.001). In addition, the physiologic cardiac cycle-dependent variation of integrated backscatter was blunted significantly in zones of infarction [0.8 dB ± 0.3 vs. 3.8 ± 0.6 (p < 0.01) for normal regions]. Ultrasonic results matched the histopathologic features assessed directly. Thus quantitative ultrasonic tissue characterization can differentiate infarcted tissue from normal myocardium and offers promise for quantitative detection of histopathology in vivo.",

author = "Benico Barzilai and Thomas, {Lewis J.} and Glueck, {Robert M.} and Saffitz, {Jeffrey E.} and Zvi Vered and Sobel, {Burton E.} and Miller, {James G.} and P{\'e}rez, {Julio E.}",

note = "Funding Information: From the Departments of Medicine and Physics, Washington University. Supported in part by National Institutes of Health Grant HL 17646, Specialized Center of Research in Ischemic Heart Disease, National Aeronautics and Space Administration Grant SG-1601, and National Institutes of Health Grant R236733-0l.",

year = "1988",

doi = "10.1016/S0894-7317(88)80073-7",

language = "English",

volume = "1",

pages = "179--186",

journal = "Journal of the American Society of Echocardiography",

issn = "0894-7317",

number = "3",

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TY - JOUR

T1 - Detection of Remote Myocardial Infarction With Quantitative Real-Time Ultrasonic Characterization

AU - Barzilai, Benico

AU - Thomas, Lewis J.

AU - Glueck, Robert M.

AU - Saffitz, Jeffrey E.

AU - Vered, Zvi

AU - Sobel, Burton E.

AU - Miller, James G.

AU - Pérez, Julio E.

N1 - Funding Information: From the Departments of Medicine and Physics, Washington University. Supported in part by National Institutes of Health Grant HL 17646, Specialized Center of Research in Ischemic Heart Disease, National Aeronautics and Space Administration Grant SG-1601, and National Institutes of Health Grant R236733-0l.

PY - 1988

Y1 - 1988

N2 - We have previously shown that the intrinsic properties of myocardium can be characterized quantitatively by the assessment of ultrasonic integrated backscatter. In this study we utilized a novel, real-time, two-dimensional system capable of quantitative integrated backscatter imaging to determine whether zones of remote myocardial infarction in dogs could be delineated definitively by ultrasonic tissue characterization. Detection of such zones in patients is needed as a basis for management decisions related to thrombolysis, angioplasty, and coronary surgery. Integrated backscatter was measured through the closed chest from 25 myocardial sites. Zones of infarction exhibited time-averaged integrated backscatter values approximately 10 dB (9.5 ± 0.5 dB, standard error of the mean) greater than those in normal regions (p < 0.001). In addition, the physiologic cardiac cycle-dependent variation of integrated backscatter was blunted significantly in zones of infarction [0.8 dB ± 0.3 vs. 3.8 ± 0.6 (p < 0.01) for normal regions]. Ultrasonic results matched the histopathologic features assessed directly. Thus quantitative ultrasonic tissue characterization can differentiate infarcted tissue from normal myocardium and offers promise for quantitative detection of histopathology in vivo.

AB - We have previously shown that the intrinsic properties of myocardium can be characterized quantitatively by the assessment of ultrasonic integrated backscatter. In this study we utilized a novel, real-time, two-dimensional system capable of quantitative integrated backscatter imaging to determine whether zones of remote myocardial infarction in dogs could be delineated definitively by ultrasonic tissue characterization. Detection of such zones in patients is needed as a basis for management decisions related to thrombolysis, angioplasty, and coronary surgery. Integrated backscatter was measured through the closed chest from 25 myocardial sites. Zones of infarction exhibited time-averaged integrated backscatter values approximately 10 dB (9.5 ± 0.5 dB, standard error of the mean) greater than those in normal regions (p < 0.001). In addition, the physiologic cardiac cycle-dependent variation of integrated backscatter was blunted significantly in zones of infarction [0.8 dB ± 0.3 vs. 3.8 ± 0.6 (p < 0.01) for normal regions]. Ultrasonic results matched the histopathologic features assessed directly. Thus quantitative ultrasonic tissue characterization can differentiate infarcted tissue from normal myocardium and offers promise for quantitative detection of histopathology in vivo.

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U2 - 10.1016/S0894-7317(88)80073-7

DO - 10.1016/S0894-7317(88)80073-7

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AN - SCOPUS:0024002888

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JO - Journal of the American Society of Echocardiography

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SN - 0894-7317

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ER -

Detection of Remote Myocardial Infarction With Quantitative Real-Time Ultrasonic Characterization

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