paper-plane envelope home office pencil quill pen image images camera play bullhorn connection mic file-text2 file-picture file-music file-play file-video copy folder folder-open folder-plus folder-minus folder-download folder-upload price-tag price-tags ticket phone envelop pushpin location compass map map2 clock alarm fax mobile bubble bubbles user users user-plus user-minus user-check quotes-left quotes-right search pie-chart stats-dots stats-bars airplane cloud-download cloud-upload earth link flag eye eye-blocked arrow-up-left arrow-up arrow-up-right arrow-right arrow-down-right arrow-down arrow-down-left arrow-left2 share amazon google-plus google-drive facebook instagram twitter rss youtube flickr dropbox linkedin file-pdf file-openoffice file-word file-excel
XClose

UCL Cardiovascular Engineering Laboratory
Faculty of Engineering Sciences

Home
Menu

Augmented cardiovascular 4D flow MR Imaging

The study of haemodynamics within anatomically complex regions of the human vascular system such as the heart is of high interest since there is a strong correlation between disturbed flow patterns and the development of vascular disease. In particular blood flow in the great thoracic arteries is closely related to the ventricular contractile force of the heart and therefore a quantitative assessment of flow can provide information about cardiac function.

Flow-sensitive 4D MR Imaging has increasingly been utilised to characterise blood flow in the clinical environment. However spatial and temporal resolution is still low. This project is aimed to integrate 4D MR data with computational fluid dynamics (CFD) to obtain an enhanced 4D flow MR imaging. The enhancement will be to overcome the spatial-resolution limitation of the original 4DMR, which will enable more accurate quantification of the endothelial shear stress as well as non-invasive estimation of blood pressure. At the same time, it will reduce a number of assumptions in conventional hemodynamic CFD such as in/outflow conditions including effect of valves, impact of patient-specific vessel wall motion and effect of the surrounding tissue. The approach will be validated using an in-vitro experimental models of circulatory system, comparing the enhanced 4D flow MRI data with the particle image velocimetry (PIV) data.

The most significant output from this project will be a fully patient-specific, high-resolution time-dependent 3D field of pressure which will enables non-invasive “measurement” of central arterial blood pressure, one of the main cardiovascular risk predictor.

Research Team

Giacomo ANNIO

Research Student

Gaetano BURRIESCI

Lab Director

Ryo TORII

Department Collaborator

Victor TSANG

Professor of Cardiac Surgery - UCL Institute for Cardiovascular Sciences

Andrea DUCCI

Department Collaborator

Back to top