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  • ischemia
  • Prognosis is primarily related to the degree of left ventricular dysfunction and the extent and magnitude of inducible myocardial ischemia. (onlinejacc.org)
  • Hypothesis: An alternative management of CAD guided by significant myocardial ischemia detection after TAVI could reduce the risk of unnecessary revascularization, the complications and the costs inherent to these procedures and a phase II trial is requiring to the evaluate this innovative and less invasive strategy. (clinicaltrials.gov)
  • intramyocardial blood
  • The greater, still unrealized value of these unique erythrocyte tracers, however, resides in their ability to depict the spatial distribution of myocardial perfusion and to quantify intramyocardial blood volume, properties that render UCAs ideal for the detection and localization of coronary artery disease (CAD). (onlinejacc.org)
  • Subsequent milestones included the development of second-generation UCAs capable of transpulmonary transit ( 1 ), placement of sophisticated UCA detection strategies on ultrasound imaging systems ( 4 ), and animal studies proving the principle that MCE can measure intramyocardial blood volume and hence detect CAD during stress testing ( 5,6 ). (onlinejacc.org)
  • acute
  • Major contraindications to stress myocardial perfusion imaging include: acute coronary syndromes prior to medical stabilization, critical aortic stenosis, known or suspected high-grade left main coronary artery stenosis, uncontrolled arrhythmias, decompensated congestive heart failure, acute aortic dissection, acute myocarditis, or any severe noncardiac medical illness that may preclude stress. (renalandurologynews.com)
  • dyssynchrony
  • There has been intense effort at developing imaging markers of dyssynchrony with the aim of improved risk stratification. (springer.com)
  • This article discusses mechanisms of cardiac dyssynchrony, reviews clinical data supporting resynchronization therapy, and addresses the lack of convincing evidence to support the use of noninvasive imaging measures of dyssynchrony in improving patient management. (springer.com)
  • Rosen B, Lardo A, Berger D. Imaging of myocardial dyssynchrony in congestive heart failure. (springer.com)
  • patient
  • The quality of images obtained by MPI are dependent on a variety of factors, the most significant ones being image noise, photon attenuation, Compton scattering, collimator-detector response (CDR), and patient movement. (healthcanal.com)
  • The possibility to shorten the imaging time makes the scan easier for the patient and makes it possible to scan a larger number of patients during one day. (healthcanal.com)
  • The radiopharmaceutical is injected at peak stress, and the patient is imaged shortly thereafter. (renalandurologynews.com)