Dosimetric consequences of the shift towards computed tomography guided target definition and planning for breast conserving radiotherapy-1

V).<p><b>Copyright information:</b></p><p>Taken from "Dosimetric consequences of the shift towards computed tomography guided target definition and planning for breast conserving radiotherapy"</p><p>http://www.ro-journal.com/content/3/1/6</p><p>Radiation Oncology (London, England) 2008;3():6-6.</p><p>Published online 31 Jan 2008</p><p>PMCID:PMC2270860.</p><p></p

Average CTV coverages and homogeneities per modality of all included plans.

<p>Average CTV coverages and homogeneities per modality of all included plans.</p

Robustness performance of PTV and minimax optimization.

<p>Nominal D₉₈ (blue) and worst-case scenario (red) of PTV-based (a,c) and minimax IMPT plans (b,d) for CTV₇₀ (a-b) and CTV_54.25 (c-d). Solid lines connect the averages and boxplots represent the distribution of these parameters of all patients per plan type. The horizontal blue lines represent the CTV dose criterion that marks 95% of the prescribed dose (66.5 Gy and 51.5 Gy).</p

Field configurations used for IMPT and IMRT plans.

<p>Field configurations used for IMPT and IMRT plans.</p

NTCP benefit of IMPT with different field configurations compared to IMRT.

<p>∆NTCP and 95% confidence interval are given as a function of number of minimax-optimized IMPT fields for xerostomia (left), dysphagia (right), for all patients (upper) and the 7 patients with combined NTCP reduction larger than 15% (lower).</p