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Tumor tracking and motion compensation with an adaptive tumor tracking system (ATTS): System description and prototype testing
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10.1118/1.2964090
/content/aapm/journal/medphys/35/9/10.1118/1.2964090
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/35/9/10.1118/1.2964090

Figures

Image of FIG. 1.
FIG. 1.

Schematic overview of the ATTS and detailed views of the used infrared marker tools.

Image of FIG. 2.
FIG. 2.

Robotic 4D phantom with arm for the tumor substitute and the orientation of the room coordinates.

Image of FIG. 3.
FIG. 3.

Fraction of amplitude that was achieved as a function of the maximum velocity of the sine curve moving the HexaPOD table.

Image of FIG. 4.
FIG. 4.

(a) Example of robot motion (dots) measured with the Polaris system and reference path (line) using the player program to move the robot. (b) Difference between reference and robot positions.

Image of FIG. 5.
FIG. 5.

Comparison between positions from Polaris data using (solid line) and automatic tracking of the tumor substitute in the portal images (circles) for Tumor1.

Image of FIG. 6.
FIG. 6.

(a) Longitudinal tumor trajectory of Tumor1 without (black line) and with counter-steering (grey filled) of the HexaPOD table and (b) the resulting distributions of tumor positions.

Image of FIG. 7.
FIG. 7.

(a) Longitudinal tumor trajectory of Tumor2 without (black line) and with counter-steering (grey filled) of the HexaPOD table and (b) the resulting distributions of tumor positions.

Image of FIG. 8.
FIG. 8.

(a) Longitudinal tumor trajectory of Tumor3 without (black line) and with counter-steering (grey filled) of the HexaPOD table and (b) the resulting distributions of tumor positions.

Image of FIG. 9.
FIG. 9.

(a) Example of a tumor trajectory with drifting mean position (dashed line) and its compensation by counter-steering the HexaPOD (thick black line). (b) shows the distribution of tumor positions without (black) and with (grey) activated counter-steering. (Lateral direction of Tumor3).

Tables

Generic image for table
TABLE I.

Summary of the developed in-house software and their main functionality.

Generic image for table
TABLE II.

Characteristic values of the paths used in experiments 2–4.

Generic image for table
TABLE III.

Deviation between the reference paths loaded into the player utility program and the resulting robot movements for the and directions (in mm).

Generic image for table
TABLE IV.

Differences between the tumor positions resulting from automatic tracking in the portal images and from the corresponding Polaris signal (in mm).

Generic image for table
TABLE V.

Motion range and PDF for the tumor paths without and with activated motion compensation. For the PDF mean and standard deviation of the tumor positions are given. All values are in mm.

Generic image for table
TABLE VI.

Data for table motions during activated counter-steering with the HexaPOD.

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/content/aapm/journal/medphys/35/9/10.1118/1.2964090
2008-08-07
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Tumor tracking and motion compensation with an adaptive tumor tracking system (ATTS): System description and prototype testing
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/35/9/10.1118/1.2964090
10.1118/1.2964090
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