Separating arterial and venous components from 3D dynamic contrast-enhanced MRI studies using factor analysis Export

@article{Martel:2003, abstract = {Dynamic contrast-enhanced MRI has been used extensively for angiographybut in order to generate separate arterial and venous images some form ofpostprocessing is required. This typically involves the subtraction of oneimage in a dynamic sequence from another in order to suppress unwantedsignal and however, this also has the effect of decreasing thesignal-to-noise ratio (SNR) of the image. In this study, factor analysis,a technique related to eigenimage filtering, is used to separate arterialand venous components from dynamic contrast-enhanced images of the legsacquired with a temporal resolution of 30 sec. The SNR of the venous andarterial images extracted from a series of 20 patients using conventionalsingle subtraction, a double subtraction method, and factor analysis werecompared. Results show that the use of factor analysis improved the SNR inthe venous images by a factor of 2.3 compared with the use of simplesubtraction. A subjective comparison of the maximum intensity projectionimages generated from the venous images was also carried out and showed asignificant preference for those generated using factor analysis overthose generated using other subtraction methods.}, address = {Dept Medical Physics, Queen's Medical Centre, Nottingham, UK.}, author = {Martel, A. L. and Fraser, D. and Delay, G. S. and Morgan, P. S. and Moody, A. R.}, citeulike-article-id = {254765}, journal = {Magnetic Resonance in Medecine}, keywords = {angiography, arteries-veins-separation, bibtex-import, contrast-enhanced, factor-analysis, medical-imaging, mri}, number = {5}, pages = {928--933}, posted-at = {2005-07-13 16:35:33}, priority = {0}, publisher = {Copyright 2003 Wiley-Liss, Inc.}, title = {Separating arterial and venous components from {3D} dynamic contrast-enhanced {MRI} studies using factor analysis}, volume = {49}, year = {2003} }

TY - JOUR ID - Martel:2003 L3 - citeulike-article-id:254765 N2 - Dynamic contrast-enhanced MRI has been used extensively for angiographybut in order to generate separate arterial and venous images some form ofpostprocessing is required. This typically involves the subtraction of oneimage in a dynamic sequence from another in order to suppress unwantedsignal and however, this also has the effect of decreasing thesignal-to-noise ratio (SNR) of the image. In this study, factor analysis,a technique related to eigenimage filtering, is used to separate arterialand venous components from dynamic contrast-enhanced images of the legsacquired with a temporal resolution of 30 sec. The SNR of the venous andarterial images extracted from a series of 20 patients using conventionalsingle subtraction, a double subtraction method, and factor analysis werecompared. Results show that the use of factor analysis improved the SNR inthe venous images by a factor of 2.3 compared with the use of simplesubtraction. A subjective comparison of the maximum intensity projectionimages generated from the venous images was also carried out and showed asignificant preference for those generated using factor analysis overthose generated using other subtraction methods. IS - 5 JF - Magnetic Resonance in Medecine AD - Dept Medical Physics, Queen's Medical Centre, Nottingham, UK. EP - 933 TI - Separating arterial and venous components from {3D} dynamic contrast-enhanced {MRI} studies using factor analysis PB - Copyright 2003 Wiley-Liss, Inc. VL - 49 SP - 928 KW - angiography KW - arteries-veins-separation KW - bibtex-import KW - contrast-enhanced KW - factor-analysis KW - medical-imaging KW - mri AU - Martel, AL AU - Fraser, D AU - Delay, GS AU - Morgan, PS AU - Moody, AR PY - 2003/// ER -