Establishment and validation of an extracellular volume model without blood sampling in ST-segment elevation myocardial infarction patients.

ABSTRACT:

Aims

Recent studies have shown that extracellular volume (ECV) can also be obtained without blood sampling by the linear relationship between haematocrit (HCT) and blood pool R1 (1/T1). However, whether this relationship holds for patients with myocardial infarction is still unclear. This study established and validated an ECV model without blood sampling in ST-segment elevation myocardial infarction (STEMI) patients.

Methods and results

A total of 398 STEMI patients who underwent cardiac magnetic resonance (CMR) examination with T1 mapping and venous HCT within 24 h were retrospectively analysed. All patients were randomly divided into a derivation group and a validation group. The mean CMR scan time was 3 days after primary percutaneous coronary intervention. In the deriva

SUBMITTER: Chen L 

PROVIDER: S-EPMC11367959 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature