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Feasibility of four-dimensional conformal planning for robotic radiosurgery
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10.1118/1.2122607
/content/aapm/journal/medphys/32/12/10.1118/1.2122607
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/32/12/10.1118/1.2122607

Figures

Image of FIG. 1.
FIG. 1.

Relative position of target (T) and critical (C) volumes for different states in the breathing cycle. In the left figure both volumes move with a different velocity, in the right figure only the target volume moves. The one beam in the left figure and the two beams in the right figure all move synchronous to the target. Darker areas denote parts of the volumes hit by the beam.

Image of FIG. 2.
FIG. 2.

Beam selection for 3D moving and 4D moving (left), where the beams move synchronous to the target volume (T), and for 4D fixed (right) where beams remain stationary.

Image of FIG. 3.
FIG. 3.

A regular breathing pattern obtained from the CyberKnife system. The figure gives the motion ( axis, ) of three markers over the time ( axis).

Image of FIG. 4.
FIG. 4.

The breathing pattern used for the simulations.

Image of FIG. 5.
FIG. 5.

Location and motion of the respective volumes in the phantom.

Image of FIG. 6.
FIG. 6.

Target volume DVHs for 3D stationary, 3D fixed, 3D moving, 4D fixed, 4D moving, respectively.

Image of FIG. 7.
FIG. 7.

Critical volume DVHs for 3D stationary, 3D fixed, 3D moving, 4D fixed, 4D moving, respectively.

Image of FIG. 8.
FIG. 8.

Isodose diagrams for the stationary plan (left) and Algorithm A (right). The figure shows isodose lines for 600, 900, 1200, 5100, 5400, and .

Tables

Generic image for table
TABLE I.

Notation used for algorithms and simulations.

Generic image for table
TABLE II.

Basic statistics on the dose distribution for different planning schemes.

Generic image for table
TABLE III.

Number of beams, MU, and planning time for the different algorithms.

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/content/aapm/journal/medphys/32/12/10.1118/1.2122607
2005-11-29
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Feasibility of four-dimensional conformal planning for robotic radiosurgery
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/32/12/10.1118/1.2122607
10.1118/1.2122607
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