TY - GEN
T1 - From 2D to 4D in quantitative left ventricle wall motion analysis of biplanar X-ray angiograms
AU - Swoboda, Roland
AU - Carpella, Martin
AU - Backfrieder, Werner
AU - Steinwender, Clemens
AU - Gabriel, Christian
AU - Leisch, Franz
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2005
Y1 - 2005
N2 - Accurate assessment of regional myocardial function after infarction is a challenging task in biplanar X-ray cineangiography. An estimate of motion is given by tracking contours of the left ventricle (LV) in projection images. In conventional clinical practice, LV wall motion analysis is done in 2D, based on end-diastolic and end-systolic contours. Our work, by contrast, presents novel methods for analyzing left ventricular motion in 4D, making possible the evaluation of myocardial function in any region of the ventricle rather than at artificial boundary areas in the projection image. 4D LV models are reconstructed from a biplanar image sequence. The centerline and radial method, originally developed for analysis in 2D, are extended to 3D for assessment of cardiac motion based on our 4D ventricular model. Color-encoded ventricle models and 2D maps of heart wall dynamics are developed for visualization. Results obtained by using the methods presented herein are in correspondence with clinical findings.
AB - Accurate assessment of regional myocardial function after infarction is a challenging task in biplanar X-ray cineangiography. An estimate of motion is given by tracking contours of the left ventricle (LV) in projection images. In conventional clinical practice, LV wall motion analysis is done in 2D, based on end-diastolic and end-systolic contours. Our work, by contrast, presents novel methods for analyzing left ventricular motion in 4D, making possible the evaluation of myocardial function in any region of the ventricle rather than at artificial boundary areas in the projection image. 4D LV models are reconstructed from a biplanar image sequence. The centerline and radial method, originally developed for analysis in 2D, are extended to 3D for assessment of cardiac motion based on our 4D ventricular model. Color-encoded ventricle models and 2D maps of heart wall dynamics are developed for visualization. Results obtained by using the methods presented herein are in correspondence with clinical findings.
KW - Heart
KW - Left Ventricle
KW - Biplanar X-Ray Angiography
KW - Motion Analysis
KW - Reconstruction
KW - Heart
KW - Left Ventricle
KW - Biplanar X-Ray Angiography
KW - Motion Analysis
KW - Reconstruction
UR - http://www.scopus.com/inward/record.url?scp=33847155990&partnerID=8YFLogxK
U2 - 10.1109/CIC.2005.1588272
DO - 10.1109/CIC.2005.1588272
M3 - Conference contribution
SN - 0780393376
SN - 9780780393370
T3 - Computers in Cardiology
SP - 977
EP - 980
BT - Computers in Cardiology, 2005
PB - IEEE
T2 - Computers in Cardiology, 2005
Y2 - 25 September 2005 through 28 September 2005
ER -