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Fully automatic detection of corresponding anatomical landmarks in volume scans of different respiratory state
Author(s) -
Berlinger Kajetan,
Roth Michael,
Sauer Otto,
Vences Lucia,
Schweikard Achim
Publication year - 2006
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.2198587
Subject(s) - exhalation , volume (thermodynamics) , computer vision , computer science , artificial intelligence , respiratory compensation , nuclear medicine , medical imaging , point (geometry) , biomedical engineering , mathematics , radiology , medicine , physics , physiology , anaerobic exercise , geometry , quantum mechanics
A method is described which provides fully automatic detection of corresponding anatomical landmarks in volume scans taken at different respiratory states. The resulting control points are needed for creating a volumetric deformation model for motion compensation in radiotherapy. Prior to treatment two CT volumes are taken, one scan during inhalation, one during exhalation. These scans and the detected control point pairs are taken as input for creating the four‐dimensional model by using thin‐plate splines.