A positioning error measurement method in radiotherapy based on 3D visualization
An, J.-Y.; Li, Y.-X.; Lu, X.-D.; Duan, H.-L.
Zhongguo Yi Liao Qi Xie Za Zhi 31(5): 324-327
2007
ISSN/ISBN: 1671-7104 PMID: 18161367 Document Number: 608038
The positioning error in radiotherapy is one of the most important factors that influence the location precision of the tumor. Based on the CT-on-rails technology, this paper describes the research on measuring the positioning error in radiotherapy by comparing the planning CT images with the treatment CT images using 3-dimension (3D) methods. It can help doctors to measure positioning errors more accurately than 2D methods. It also supports the powerful 3D interaction such as drag-dropping, rotating and picking-up the object, so that doctors can visualize and measure the positioning errors intuitively.