Fully automatic detection of corresponding anatomical landmarks in volume scans of different respiratory state.
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.
Berlinger
Kajetan
K
Image Understanding and Knowledge-Based Systems, Technische Universität München, Boltzmannstrasse 3, D-85748 Garching bei München, Germany. berlinge@in.tum.de
Roth
Michael
M
Sauer
Otto
O
Vences
Lucia
L
Schweikard
Achim
A
D000465:Algorithms; D001331:Automation; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging* / Q000502:physiology* / Q000648:ultrastructure; D008279:Magnetic Resonance Imaging / Q000379:methods; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D015203:Reproducibility of Results; D012119:Respiration; D015656:Respiratory Mechanics / Q000502:physiology*; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods*