Document Detail

Respiration tracking in radiosurgery without fiducials.
MedLine Citation:
PMID:  17518375     Owner:  NLM     Status:  MEDLINE    
In robotic radiosurgery, a focused beam of radiation is moved by a robot arm. We investigated methods for soft-tissue navigation using robotic radiosurgery. In previous work we described a method for real-time tracking based on correlation between the motion of implanted fiducial markers and external skin markers. In this work we extend our method of correlation-based tracking to tracking without implanted fiducials. We propose to use deformation algorithms on CT data sets combined with registration of digitally reconstructed radiographs and intra-treatment X-ray images to obtain intermittent information on the target location. This information is then combined with our basic correlation method to achieve real-time tracking. Our study investigates the feasibility of this approach from the point of view of computing time and required level of user interaction. The term 7D registration is coined to describe the underlying method for performing this task.
A Schweikard; H Shiomi; J Adler
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  The international journal of medical robotics + computer assisted surgery : MRCAS     Volume:  1     ISSN:  1478-596X     ISO Abbreviation:  -     Publication Date:  2005 Jan 
Date Detail:
Created Date:  2007-05-23     Completed Date:  2007-06-12     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  101250764     Medline TA:  Int J Med Robot     Country:  England    
Other Details:
Languages:  eng     Pagination:  19-27     Citation Subset:  IM    
Copyright Information:
Copyright 2005 Robotic Publications, Ltd.
Informatik, Universitaet Lübeck, 23538 Lübeck, Germany.
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MeSH Terms
Clinical Trials as Topic
Computer Systems
Feasibility Studies
Image Processing, Computer-Assisted
Intraoperative Period
Monitoring, Intraoperative* / instrumentation
Radiography, Thoracic
Radiosurgery / instrumentation,  methods*
Robotics* / instrumentation
Time Factors
Tomography, X-Ray Computed
User-Computer Interface

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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