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Updated: Jan 27, 2026

In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
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In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography

Published on: February 16, 2016

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Correction to: Risk stratification with vasodilator stress SPECT myocardial perfusion imaging in patients with

Shreyas Gowdar1, Alan W Ahlberg1, Mridula Rai1

  • 1Hartford Hospital Division of Cardiology, Hartford Healthcare Heart and Vascular Institute, 80 Seymour Street, Hartford, CT, 06102, USA.

Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology
|March 29, 2019
PubMed

Insights

Myocardial perfusion imaging (MPI) effectively predicts cardiac mortality. Stressトランスペルミネーションポテンシャルドロップ (TPD) is an independent predictor of both all-cause and cardiac mortality, even after risk factor adjustment.

Area of Science:

  • Cardiology
  • Nuclear Cardiology
  • Diagnostic Imaging

Context:

  • Myocardial perfusion imaging (MPI) is crucial for assessing cardiac health.
  • Vasodilator stress testing is commonly used in MPI.
  • Predicting mortality risk is essential for patient management.

Purpose:

  • To evaluate the prognostic value of vasodilator stress myocardial perfusion imaging (MPI) in predicting all-cause and cardiac mortality.
  • To determine if MPI results, specificallyトランスペルミネーションポテンシャルドロップ (TPD) and left ventricular ejection fraction (LVEF), add incremental value to traditional cardiac risk factors and troponin levels.

Summary:

  • A study of 503 patients found that the severity of TPD, particularly with regadenoson, significantly predicted all-cause mortality (P < .0001).
  • MPI results, including stress TPD and LVEF, demonstrated similar prognostic ability for cardiac mortality as for all-cause mortality.
  • MPI findings remained independently predictive of mortality after adjusting for cardiac risk factors, previous coronary disease, and troponin quartiles.

Impact:

  • MPI, specifically stress TPD, provides significant incremental prognostic information beyond traditional risk factors for predicting mortality.
  • These findings support the use of MPI in risk stratification for patients undergoing vasodilator stress testing.
  • Stress TPD is an independent predictor of both all-cause and cardiac mortality.

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