The impact of signal-to-noise ratio, diffusion-weighted directions and image resolution in cardiac diffusion tensor imaging – insights from the ex-vivo rat heart

Autor: Darryl McClymont, Irvin Teh, Jürgen E. Schneider

Publikováno v: Journal of Cardiovascular Magnetic Resonance, Vol 19, Iss 1, Pp 1-10 (2017)

Abstract Background Cardiac diffusion tensor imaging (DTI) is limited by scan time and signal-to-noise (SNR) restrictions. This invariably leads to a trade-off between the number of averages, diffusion-weighted directions (ND), and image resolution.

Externí odkaz: https://doaj.org/article/e9dd162012f64af6a6b6fa7a275957d7

Assessing myocardial microstructure with biophysical models of diffusion MRI

Autor: Jürgen E. Schneider, Hannah J. Whittington, Leah Khazin, Erica Dall’Armellina, Craig A. Lygate, Christoph Rau, Marie-Christine Zdora, Mohsen Farzi, Irvin Teh, Darryl McClymont

Biophysical models are a promising means for interpreting diffusion weighted magnetic resonance imaging (DW-MRI) data, as they can provide estimates of physiologically relevant parameters of microstructure including cell size, volume fraction, or dis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::656d4230daf043cd764a75ab37baa04b
https://ora.ox.ac.uk/objects/uuid:e8f10ec5-0eab-4cf1-85c3-906c416b0a0f

Validation of diffusion tensor MRI measurements of cardiac microstructure with structure tensor synchrotron radiation imaging

Autor: Irene Zanette, Hannah J. Whittington, Jürgen E. Schneider, Jack Lee, Christoph Rau, Irvin Teh, Craig A. Lygate, Marie-Christine Zdora, Darryl McClymont, Valentina Davidoiu

Publikováno v: Teh, I, Mcclymont, D, Zdora, M, Whittington, H J, Davidoiu, V, Lee, J, Lygate, C A, Rau, C, Zanette, I & Schneider, J E 2017, ' Validation of diffusion tensor MRI measurements of cardiac microstructure with structure tensor synchrotron radiation imaging ', Journal of Cardiovascular Magnetic Resonance, vol. 19, no. 1 . https://doi.org/10.1186/s12968-017-0342-x
Teh, I, McClymont, D, Zdora, M C, Whittington, H J, Davidoiu, V, Lee, J, Lygate, C A, Rau, C, Zanette, I & Schneider, J E 2017, ' Validation of diffusion tensor MRI measurements of cardiac microstructure with structure tensor synchrotron radiation imaging ', Journal of Cardiovascular Magnetic Resonance, vol. 19, no. 1, 31 . https://doi.org/10.1186/s12968-017-0342-x
Journal of Cardiovascular Magnetic Resonance

Background Diffusion tensor imaging (DTI) is widely used to assess tissue microstructure non-invasively. Cardiac DTI enables inference of cell and sheetlet orientations, which are altered under pathological conditions. However, DTI is affected by man

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f02d1186620453e1e97f02aafa794d5
http://jcmr-online.biomedcentral.com/articles/10.1186/s12968-017-0342-x

Reconstruction of 3D Cardiac MR Images from 2D Slices Using Directional Total Variation

Autor: Darryl McClymont, Jürgen E. Schneider, Irvin Teh, Vicente Grau, Nicolas Basty

Publikováno v: Lecture Notes in Computer Science ISBN: 9783319675633
CMMI/RAMBO/SWITCH@MICCAI

Cardiac MRI allows for the acquisition of high resolution images of the heart. Long acquisition times of MRI make it impractical to image the full heart in 3D at high resolution. As a result, multiple 2D images are commonly acquired with a slice thic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1049d84a2924a37db5135318459897d9
https://doi.org/10.1007/978-3-319-67564-0_13

Resolving Fine Cardiac Structures in Rats with High-Resolution Diffusion Tensor Imaging

Autor: Irvin, Teh, Darryl, McClymont, Rebecca A B, Burton, Mahon L, Maguire, Hannah J, Whittington, Craig A, Lygate, Peter, Kohl, Jürgen E, Schneider

Publikováno v: Scientific Reports

Cardiac architecture is fundamental to cardiac function and can be assessed non-invasively with diffusion tensor imaging (DTI). Here, we aimed to overcome technical challenges in ex vivo DTI in order to extract fine anatomical details and to provide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::99aab428b15fc6597176dff0de0cad66
https://pubmed.ncbi.nlm.nih.gov/27466029