# Retrospective Single Image Multi-endPoint anaLysis (SIMPL) to define pathophysiologic mechanisms of heart failure with preserved ejection fraction.

> **NIH NIH R21** · UNIVERSITY OF TEXAS ARLINGTON · 2024 · $122,220

## Abstract

Project Summary
Heart Failure with Preserved Ejection Fraction (HFpEF) is the most common form of heart failure, is associated
with high morbidity and mortality, with increasing prevalence and worsening prognosis. Quality-of-life in HFpEF
is as poor or worse than heart failure with reduced ejection fraction, in large part because of severe exercise
intolerance; the primary manifestation of this bourgeoning condition. Per funding announcement PAR-20-078
which supports the use of existing human datasets for well-focused secondary analyses to investigate new
methods that have the potential for significant impact on NHLBI relevant biomedical or biobehavioral research,
we will leverage an existing database of cardiac magnetic resonance images in a cohort of well-phenotyped
patients with HFpEF and age- and sex-matched healthy controls to comprehensively identify and characterize
pathophysiologic mechanisms driving HFpEF. We will use a novel Single Image Multi-endPoint anaLysis
(SIMPL) approach to compare four chamber cardiac function (right atrium, right ventricle, left atrium, left
ventricle), aortic distensibility, and pericardial fat burden between HFpEF and healthy controls, and to determine
their independent and combined association with exercise tolerance and quality of life.

## Key facts

- **NIH application ID:** 10913966
- **Project number:** 5R21HL167171-02
- **Recipient organization:** UNIVERSITY OF TEXAS ARLINGTON
- **Principal Investigator:** Michael Douglas Nelson
- **Activity code:** R21 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2024
- **Award amount:** $122,220
- **Award type:** 5
- **Project period:** 2023-09-01 → 2026-08-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10913966

## Citation

> US National Institutes of Health, RePORTER application 10913966, Retrospective Single Image Multi-endPoint anaLysis (SIMPL) to define pathophysiologic mechanisms of heart failure with preserved ejection fraction. (5R21HL167171-02). Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/grant/nih/10913966. Licensed CC0.

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