Semi-automatic delineation using weighted CT-MRI registered images for radiotherapy of nasopharyngeal cancer

Purpose: To develop a delineation tool that refines physician-drawn contours of the gross tumor volume (GTV) in nasopharynx cancer, using combined pixel value information from x-ray computed tomography (CT) and magnetic resonance imaging (MRI) during delineation.Methods: Operator-guided delineation...

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Veröffentlicht in:	Medical physics (Lancaster) 2011-08, Vol.38 (8), p.4662-4666
Hauptverfasser:	Fitton, I., Cornelissen, S. A. P., Duppen, J. C., Steenbakkers, R. J. H. M., Peeters, S. T. H., Hoebers, F. J. P., Kaanders, J. H. A. M., Nowak, P. J. C. M., Rasch, C. R. N., van Herk, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	active contours Aged Algorithms biomedical MRI Cancer CAT SCANNING Computed tomography computerised tomography CT-MRI registration Humans IMAGE PROCESSING Image registration INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY Magnetic resonance imaging Magnetic Resonance Imaging - statistics & numerical data Medical image contrast Medical image noise medical image processing Medical imaging Medical magnetic resonance imaging MEDICAL PERSONNEL Medical X‐ray imaging Middle Aged nasopharyngeal carcinoma Nasopharyngeal Neoplasms - diagnostic imaging Nasopharyngeal Neoplasms - pathology Nasopharyngeal Neoplasms - radiotherapy NMR IMAGING NOISE PHARYNX Positron emission tomography radiation therapy RADIOLOGY AND NUCLEAR MEDICINE RADIOTHERAPY Radiotherapy Planning, Computer-Assisted - statistics & numerical data Radiotherapy, Intensity-Modulated - statistics & numerical data snake Software Therapeutic applications, including brachytherapy Tomography, X-Ray Computed - statistics & numerical data tumor delineation tumours X RADIATION X‐ray imaging
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