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Norman McDicken, Adrian Thomson, Audrey White, Iqbal Toor, Gillian Gray, Carmel Moran, Robin J Watson, and Tom Anderson

Introduction The diversity of Doppler ultrasound technology in medicine continues to increase ( 1 , 2 ). This paper summarises developed Doppler technology which is usually beam/velocity angle dependent. It then describes the use of velocity

Open access

A J Fletcher, S Robinson, and B S Rana

via the Bernoulli equation from the peak blood velocity of the forward flow on continuous-wave Doppler, however, this does not provide us with an estimate of the absolute pressure in either chamber. RV filling in early diastole can be assessed using

Open access

Miriam Shanks, Lucas Valtuille, Jonathan B Choy, and Harald Becher

dilatation and depressed intra-atrial conduction determine the total time required for atrial electrical activation (8) . Various Doppler echocardiography-derived parameters have been described that estimate atrial conduction time as a marker of electrical

Open access

J Jose, K Randall, J Baron, and J Khoo

problems that need to be addressed: Why was there a significant change in aortic valve gradients from one TTE to the other? Do we disproportionately rely on Doppler gradients when visibility of prosthetic valve leaflets is poor due to imaging

Open access

Benoy N Shah and Dhrubo J Rakhit

changes seen in the SVC flow profile (which reflect the changes seen in the jugular venous pulse (JVP) waveform upon physical examination) before and after pericardiocentesis. SVC Doppler interrogation may be particularly valuable for determining the

Open access

Rachel N Lord, Keith George, Helen Jones, John Somauroo, and David Oxborough

.1540-8175.2001.00565.x 11737965 10.1046/j.1540-8175.2001.00565.x 6 Korinek J Wang J Sengupta PP Miyazaki C Kjaergaard J McMahon E Abraham TP & Belohlavek M 2005 Two-dimensional strain – a Doppler-independent ultrasound method for

Open access

Stephan Stoebe, Dietrich Pfeiffer, and Andreas Hagendorff

interventricular sulcus, which is relatively close to the chest wall. Owing to these anatomical circumstances, the distal part of the LAD can be well detected by conventional 2D transthoracic colour-coded Doppler echocardiography in almost all cases ( 1 , 2 , 3

Open access

Charles L Brassard, Claudia Viens, André Denault, and Pierre Couture

showing a dilated left atrium and absence of mitral leaflet coaptation. The next section demonstrates severe mitral insufficiency by colour-flow Doppler. The last section shows a hyperdynamic left ventricle with absence of pericardial haematoma. View Video

Open access

Dimitris Klettas, Emma Alcock, Rafal Dworakowski, Philip MacCarthy, and Mark Monaghan

Doppler, CW Doppler, colour Doppler, M-mode and harmonic imaging (Philips S8-3t sector array multiplane microTEE ultrasound transducer for the iE33). The aim of our study was to compare the feasibility of using a TEE microprobe in cardiac interventions

Open access

Maria Pia Donataccio, Claudio Reverberi, and Nicola Gaibazzi

descending (LAD) Doppler coronary flow reserve measurement (1) . The diagnostic yield of perfusion imaging vs wall motion analysis only for CAD detection, either by adenosine cardiac magnetic resonance (aCMR) or stress echocardiography (cSE), has been tested