Correlation of functional parameters derived by equilibrium radionuclide angiocardiography and left ventricular size in patients with old myocardial infarction

Carlo L. Maini, Raffaele Antonelli Incalzi, Massimo G. Bonetti, Guido Valle

Research output: Contribution to journalArticle

Abstract

A total of 131 patients with old (over 6 months) myocardial infarction (MI) and 18 normal subjects underwent equilibrium radionuclide angiocardiography at rest (rERNA). The following rERNA parameters were assessed: left ventricular ejection fraction (LVEF), peak ejection rate (PER), peak filling rate (PFR), regional wall motion and a left ventricular size index. The patients with old MI were divided into four groups (I to IV) according to increasing left ventricular (LV) size, and the behaviour of the numerical parameters (LVEF, PER, PFR) was evaluated in each group. LVEF proved to be the most sensitive numerical parameter of overall LV performance. PFR decreased significantly from group I to group III but not from group III to group IV, suggesting that for extreme degrees of left ventricular enlargement some compensatory mechanism acts to prevent a too large fall in LV compliance. The effects of the site of the previous MI on LV performance were also evaluated. Both LV size and performance were least affected by postero-inferior MI. The LVEF was, however, a better predictor of LV size than the site of the MI.

Original languageEnglish
Pages (from-to)60-64
Number of pages5
JournalEuropean Journal Of Nuclear Medicine
Volume12
Issue number2
DOIs
Publication statusPublished - Jun 1986

Keywords

  • Equilibrium radionuclide angiocardiography at rest )rERNA)
  • Myocardial infarction
  • rERNA variables

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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