Abstract
Feasibility and validation of trans-valvular flow derived by four-dimensional flow cardiovascular magnetic resonance imaging in pacemaker recipients
Highlights
524 cardiac pacemakers per million people are implanted in Europe per year with an increasing year-on-year trend [1]
The main aims of the study were to (1) assess the feasibility of performing 4D flow in patients with magnetic resonance imaging (MRI) conditional pacemakers and (2) investigate the consistency and reliability of retrospective valve tracking in quantification of valvular flow in patients with pacemakers in both atrial (AOO) and dual chamber (DOO) asynchronous pacing modes
No significant differences were noted between battery voltage, lead impedance, capture threshold or Pand R-wave amplitude
Summary
524 cardiac pacemakers per million people are implanted in Europe per year with an increasing year-on-year trend [1]. The burden of cardiovascular disease in pacemaker recipients, coupled with the increasingly prominent role of cardiac MRI in European guidelines for the diagnosis, management and monitoring of patients with cardiovascular disease has meant providing cardiac MRI to this population has become a necessity [3, 4]. The feasibility and safety of performing cardiac MRI in pacemaker patients for acquisition of cines, late gadolinium imaging and perfusion has previously been established [5,6,7]. Due to its advantage over two-dimensional phase contrast acquisition and other Doppler based imaging methods, it is being increasingly advocated for challenging cases of congenital heart disease, valvular heart disease and haemodynamic assessment [11,12,13]. Safety and reliability of this technique remains to be confirmed in pacemaker patients
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