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Interfractional dose variations in the stomach and the bowels during breathhold intensity-modulated radiotherapy for pancreatic cancer: Implications for a dose-escalation strategy
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10.1118/1.4773033
/content/aapm/journal/medphys/40/2/10.1118/1.4773033
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/40/2/10.1118/1.4773033

Figures

Image of FIG. 1.
FIG. 1.

Samples of a three-dimensional view are depicted from anterior to inferior for a single patient from the initial CT (a) and the first (b), second (c), and third (d) repeat CT sets.

Image of FIG. 2.
FIG. 2.

The target structure (GTV, PTV, and PTV-POV), OAR, and POV are illustrated (a). A sample of the IMRT dose distribution on the initial CT for patient #1 at the prescription dose of 51 Gy with a 5-mm POV margin is depicted (b).

Image of FIG. 3.
FIG. 3.

An example of the organ movements between the simulation CT day and the day of the third repeat CT scan are contoured for two patients #1 (a) and (b) and #2 (c) and (d). All of the structures are drawn on the third repeat CT scan.

Tables

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TABLE I.

Patient characteristics.

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TABLE II.

Dose-volume constraints for the IMRT plan.

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TABLE III.

The initial and recalculated dose parameters for each CT set.

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TABLE IV.

Descriptive statistics of clinical factors of interest (used as independent variables).

Generic image for table
TABLE V.

Results of the univariate and multivariate regression analyses.

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/content/aapm/journal/medphys/40/2/10.1118/1.4773033
2013-01-07
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Interfractional dose variations in the stomach and the bowels during breathhold intensity-modulated radiotherapy for pancreatic cancer: Implications for a dose-escalation strategy
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/40/2/10.1118/1.4773033
10.1118/1.4773033
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