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Review
. 2017 Mar 9:7:34.
doi: 10.3389/fonc.2017.00034. eCollection 2017.

Post-Prostatectomy Image-Guided Radiotherapy: The Invisible Target Concept

Florent Vilotte  1 , Mickael Antoine  2 , Maxime Bobin  1 , Igor Latorzeff  3 , Stéphane Supiot  4 , Pierre Richaud  1 , Laurence Thomas  1 , Nicolas Leduc  1 , Stephane Guérif  5 , Jone Iriondo-Alberdi  6 , Renaud de Crevoisier  7 , Paul Sargos  1
Affiliations
Review

Post-Prostatectomy Image-Guided Radiotherapy: The Invisible Target Concept

Florent Vilotte et al. Front Oncol. .

Abstract

In the era of intensity-modulated radiation therapy, image-guided radiotherapy (IGRT) appears crucial to control dose delivery and to promote dose escalation while allowing healthy tissue sparing. The place of IGRT following radical prostatectomy is poorly described in the literature. This review aims to highlight some key points on the different IGRT techniques applicable to prostatic bed radiotherapy. Furthermore, methods used to evaluate target motion and to reduce planning target volume margins will also be explored.

Keywords: diet protocol; endorectal balloons; image-guided radiotherapy; post-prostatectomy; prostate neoplasm; radiotherapy; spacers.

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Figures

Figure 1
Figure 1
Example of post-prostatectomy image-guided radiotherapy. Initial computed tomography (CT) scan and cone beam computed tomography (CBCT) used for analysis of repositioning show a good correlation for rectum, bladder, and clinical target volume.
Figure 2
Figure 2
Example of a patient treated by prostate-bed radiotherapy with inadequate rectal filling during image-guided radiotherapy (3D image-based positioning).
See this image and copyright information in PMC

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