PMID: 9426023Jan 13, 1998Paper

Comparative usefulness of myocardial velocity gradient in detecting ischemic myocardium by a dobutamine challenge

Journal of the American College of Cardiology
H TsutsuiK Miyatake

Abstract

We tested the hypothesis that ischemic myocardium can be sensitively detected using tissue Doppler-derived myocardial velocity gradient (MVG) by a dobutamine challenge. Although tissue Doppler imaging (TDI) has recently emerged to quantify regional myocardial contraction, increased translational motion during a dobutamine challenge may affect the measurements. MVG is an indicator of regional myocardial contraction independent of the translational motion. We studied 19 patients with (n = 13) and without (n = 6) confirmed single-vessel coronary artery disease. Left ventricular short-axis tissue Doppler images were obtained along with conventional echocardiograms during a submaximal two-step dobutamine challenge (10 and 30 microg/kg body weight per min). Endocardial velocity as well as MVG were derived from TDI using computer analysis in the anteroseptal and posterior segments and were compared with visual interpretation. MVG demonstrated a significant dose-responsive increase in the nonischemic segments (anteroseptal: 2.6 +/- 0.8/s to 6.0 +/- 1.0/s [mean +/- SD], p < 0.05; posterior: 3.9 +/- 0.7/s to 7.6 +/- 1.8/s, p < 0.05) but remained unchanged in the ischemic segments (anteroseptal: 2.5 +/- 0.8/s to 2.7 +/- 0.7/s, p = NS; pos...Continue Reading

References

Jan 1, 1992·Ultrasound in Medicine & Biology·W N McDickenL N Gordon
May 1, 1992·Journal of the American College of Cardiology·P K MazeikaC M Oakley
Sep 1, 1972·The American Journal of Cardiology·R A MeyerS Kaplan
Jan 1, 1971·Circulation·M A DiamondH Feigenbaum
Sep 1, 1994·Abdominal Imaging·A UnoO Masamune
Jul 1, 1994·The British Journal of Radiology·A D FlemingL Fenn

❮ Previous
Next ❯

Citations

Sep 8, 2001·The American Journal of Cardiology·F LarrazetC Veyrat
Jul 13, 2002·Ultrasound in Medicine & Biology·Danielle CookSándor J Kovács
Aug 30, 2003·Ultrasound in Medicine & Biology·Colette VeyratSerge Witchitz
Oct 11, 2003·Echocardiography·Jeanne M DeCara, Roberto M Lang
Oct 11, 2003·Echocardiography·Miguel Angel Garcia-FernandezManuel Desco
Feb 15, 2001·Echocardiography·Masaaki Uematsu, Kunio Miyatake
Feb 15, 2001·Echocardiography·Denis Pellerin, Colette Veyrat
Mar 26, 2003·Circulation Journal : Official Journal of the Japanese Circulation Society·Satoshi YamadaAkira Kitabatake
Mar 15, 2015·Circulation Journal : Official Journal of the Japanese Circulation Society·Masaaki Uematsu
Dec 26, 2006·Ultrasound in Medicine & Biology·Michael J BennettW Norman McDicken
Mar 28, 2007·Heart Failure Clinics·Theodore P AbrahamDavid A Kass
May 12, 2010·Echocardiography·Hakimeh SadeghianSeyed Hesameddin Abbasi
Jun 14, 2002·The American Journal of Cardiology·Peter CainThomas H Marwick
Jan 12, 1999·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·D PellerinC Veyrat
Jun 9, 1999·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·D VinereanuA G Fraser
Mar 28, 2006·The American Journal of Cardiology·Antonio Franco FolinoSabino Iliceto
Feb 11, 2000·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·P PalkaK A Fox
Jul 3, 2007·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Hideji TanakaTakashi Oki
Dec 14, 2004·Ultrasound in Medicine & Biology·Lizelle HanekomThomas H Marwick
Aug 2, 2001·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·K KaluzynskiM O'Donnell
Dec 4, 2003·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Gabriel YipBijoy K Khandheria
Jul 4, 2009·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Lingyun HuangMatthew O'Donnell
Jun 27, 2008·European Journal of Echocardiography : the Journal of the Working Group on Echocardiography of the European Society of Cardiology·Anna MarciniakMarjan Jahangiri
Jun 29, 2005·International Journal of Cardiology·Yoko MiyasakaToshiji Iwasaka
Jul 12, 2005·Ultrasonic Imaging·X ChenM O'Donnell
Feb 14, 2017·Journal of Translational Internal Medicine·Amir HodzicFabien Labombarda
Dec 13, 2007·The International Journal of Cardiovascular Imaging·Harry Pavlopoulos, Petros Nihoyannopoulos
Oct 3, 2002·Current Opinion in Cardiology·Cristina PislaruMarek Belohlavek
Dec 4, 2001·Journal of Investigative Medicine : the Official Publication of the American Federation for Clinical Research·A VitarelliE Cimino
Dec 23, 2004·Prenatal Diagnosis·Jing Deng, Charles H Rodeck

❮ Previous
Next ❯

Related Concepts

Related Feeds

Brain Ischemia

Brain ischemia is a condition in which there is insufficient blood flow to the brain to meet metabolic demand. Discover the latest research on brain ischemia here.

Cardiology Journals

Discover the latest cardiology research in this collection of the top cardiology journals.

Cardiomyopathy

Cardiomyopathy is a disease of the heart muscle, that can lead to muscular or electrical dysfunction of the heart. It is often an irreversible disease that is associated with a poor prognosis. There are different causes and classifications of cardiomyopathies. Here are the latest discoveries pertaining to this disease.