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Four-dimensional dose evaluation using deformable image registration in radiotherapy for liver cancer
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10.1118/1.4769427
/content/aapm/journal/medphys/40/1/10.1118/1.4769427
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/40/1/10.1118/1.4769427

Figures

Image of FIG. 1.
FIG. 1.

An example of the corresponding vessel bifurcations in the liver (a) which were identified on the reference image and (b) end-inhalation phase image. (c) The full-filled and the empty dots, identified on the reference image and the deformed end-inhalation phase image to the reference image, respectively, were overlaid on the deformed phase image. (d) Vessel bifurcations overlaid on the end-exhale liver and kidney.

Image of FIG. 2.
FIG. 2.

An example of the dose distribution, (a) 3D dose, (b) 4D dose, (c) % difference between the 3D dose and the 4D dose, and (d) an example of the DVHs from the 3D dose with empty symbols and the 4D dose with filled symbols.

Image of FIG. 3.
FIG. 3.

Average DVH for the liver (a), duodenum (b), stomach (c), right kidney, (d) and left kidney (e): the upper one of each figure represents the averaged DVH with standard deviation from the 3D dose (dashed line with empty circles) and the 4D dose (solid line with solid circles), and the lower one represents the ratio of DVHs from the 3D dose to that from the 4D dose.

Tables

Generic image for table
TABLE I.

Magnitude of respiratory center-of-mass (COM) motion for the target volume and normal organs (n = 11).

Generic image for table
TABLE II.

Results of the deformable image registration between the end-inhalation phase image and reference images: differences in vessel bifurcations for the liver and both kidney and ratio of Dice's coefficient for the normal organs, average ± standard deviation (maximum) (n = 11).

Generic image for table
TABLE III.

Comparison of the dosimetric parameters from 3D dose and 4D Dose in % difference, average ± standard deviation (n = 11).

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/content/aapm/journal/medphys/40/1/10.1118/1.4769427
2012-12-13
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Four-dimensional dose evaluation using deformable image registration in radiotherapy for liver cancer
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/40/1/10.1118/1.4769427
10.1118/1.4769427
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