Cardiovascular magnetic resonance rest and exercise-stress left atrioventricular coupling index to detect diastolic dysfunction
Sören J. Backhaus, Torben Lange, Alexander Schulz, Ruben Evertz, Simon Frey, Gerd Hasenfuß, Andreas Schuster
Abstract
Evaluation of the left atrioventricular coupling index (LACI) in a rest and exercise-stress cardiovascular magnetic resonance imaging protocol allows identification of patients with heart failure and preserved ejection fraction with high diagnostic accuracy. LACI holds similar diagnostic accuracy at rest compared with left atrial ejection fraction during exercise stress. This highlights the value of LACI as a widely available and cost-effective test for diastolic dysfunction, which may help to guide patient selection for referral to specialized testing/treatment.
Topics & Concepts
Ejection fractionCardiologyMedicineInternal medicineDiastoleStress testing (software)Heart failureMagnetic resonance imagingRadiologyBlood pressureComputer scienceProgramming languageCardiovascular Function and Risk FactorsCardiac Imaging and DiagnosticsAdvanced MRI Techniques and Applications