Assessing the Impact of Prolonged Averaging of Coronary Continuous Thermodilution Traces.

ABSTRACT: Continuous Thermodilution is a novel method of quantifying coronary flow (Q) in mL/min. To account for variability of Q within the cardiac cycle, the trace is smoothened with a 2 s moving average filter. This can sometimes be ineffective due to significant heart rate variability, ventricular extrasystoles, and deep inspiration, resulting in a fluctuating temperature trace and ambiguity in the location of the "steady state". This study aims to assess whether a longer moving average filter would smoothen any fluctuations within the continuous thermodilution traces resulting in improved interpretability and reproducibility on a test-retest basis. Patients with ANOCA underwent repeat continuous thermodilution measurements. Analysis of traces were performed at averages of 10, 15, and 20 s to de

SUBMITTER: Fawaz S 

PROVIDER: S-EPMC10855808 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature