NDLI: On-line patient tracking-a new approach to the registration problem in image-guided surgery and radiotherapy of the head

Content Provider	IEEE Xplore Digital Library
Author	Westermann, B. Hauser, R.
Copyright Year	1997
Description	Author affiliation: Dept. of Otorhinolaryngology, Basel Univ., Switzerland (Westermann, B.)
Abstract	Image-guided systems for surgical and radiotherapeutic procedures in the region of the head require a method to correlate the diagnostic image data and the corresponding patient site of pathology. Considering that patient movements can occur as rotational and translational motions, detection and correction of such movement errors during the acquisition of the images is a basic prerequisite for accurate treatment. For that reason, we developed a new image registration technique based upon on-line tracking of a patient's head. It has application primarily for surgery and radiotherapy in the region of the head. The method provides non-invasive active 3D patient registration for correction of movements during imaging and continuous update of the patient's head position during surgery or for optimal and reproducible positioning of the patient during the course of radiotherapy. The patient motion correction applies the rigid body model to register the images using feature correspondence. The method is described and the results of the first experiments that were performed to evaluate its accuracy and reliability in a plastic skull model and in patients are provided. Advantages and disadvantages of the method are discussed.
Starting Page	495
Ending Page	498
File Size	407946
Page Count	4
File Format	PDF
ISBN	0780342623
ISSN	1094687X
DOI	10.1109/IEMBS.1997.757653
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-10-30
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Head Surgery Pathology Motion detection Error correction Medical treatment Image registration Performance evaluation Plastics Skull
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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