Blood speckle imaging compared with conventional Doppler ultrasound for transvalvular pressure drop estimation in an aortic flow phantom.
Cameron DockerillHarminder GillJoao Filipe FernandesAmanda Q X NioRonak RajaniPablo LamataPublished in: Cardiovascular ultrasound (2022)
BSI accurately estimated pressure drops only up to 10.5 mmHg in controlled phantom conditions of low stenotic burden. Doppler overestimated pressure drops of 20.9 mmHg. Although BSI offers a number of theoretical advantages to conventional Doppler echocardiography, further refinements and clinical studies are required with BSI before it can be used to improve transvalvular pressure drop estimation in the clinical evaluation of aortic stenosis.
Keyphrases
- aortic stenosis
- left ventricular
- aortic valve
- transcatheter aortic valve replacement
- blood flow
- ejection fraction
- aortic valve replacement
- transcatheter aortic valve implantation
- magnetic resonance imaging
- computed tomography
- high resolution
- heart failure
- image quality
- coronary artery
- photodynamic therapy
- monte carlo
- fluorescence imaging