Abstract
In this paper we propose a registration method that combinesintensity information with geometrical information inthe form of curves and surfaces derived from lung CT images.Vessel tree centerlines and lung surfaces were extractedfrom segmented structures. First, a current-based registrationwas applied to align the pulmonary vessel tree and the lungsurfaces. Subsequently, the resulting deformation field wasused to constrain an intensity-based registration method. Weapplied the combined registration on a set of image pairs, extractedat the end exhale and the end inhale phases of 4DCTscans. The proposed combined registration was comparedto intensity-based registration, using a set of manuallyselected landmarks. The proposed registration decreases themean and the standard deviation of the target registration errorsfor all 5 cases to on average 1:47 +/- 1:05 mm, compared tothe intensity-based registration without constraint 1:74 +/- 1:31mm.
| Original language | English |
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| Title of host publication | Proceedings - 2010 7th IEEE International Symposium on Biomedical Imaging : from nano to macro |
| Number of pages | 4 |
| Publisher | IEEE |
| Publication date | 2010 |
| Pages | 340-343 |
| ISBN (Print) | 978-1-4244-4125-9 |
| ISBN (Electronic) | 978-1-4244-4126-6 |
| DOIs | |
| Publication status | Published - 2010 |
| Event | 7th IEEE International Symposium on Biomedical Imaging: from nano to macro - Congress Center "De Doelen", Rotterdam, Netherlands Duration: 14 Apr 2010 → 17 Apr 2010 Conference number: 7 |
Conference
| Conference | 7th IEEE International Symposium on Biomedical Imaging |
|---|---|
| Number | 7 |
| Location | Congress Center "De Doelen" |
| Country/Territory | Netherlands |
| City | Rotterdam |
| Period | 14/04/2010 → 17/04/2010 |