On multivariate analysis (vs. IMRT), brachytherapy had worse urinary irritation at 2-years (6.8points,p<0.0001) but no differences in other domains (p>0.15). QOL after SBRT was similar for urinary (p>0.5) and sexual domains (p=0.57), but was associated with better bowel score (+6.7...
IMRT: Intensity modulated radiation therapy Ki67: A marker for proliferation LC: Local control LINAC: Linear accelerator LVSI: Lymphovascular space invasion MRI: Magnetic resonance imaging NA-PBI: Neoadjuvant partial breast irradiation NSABP: National surgical adjuvant breast and bowel project ...
IMRT: Intensity-modulated radiation therapy KBP: knowledge based planning LOOCV: leave one out cross validation MSE: mean squared error OAR: Organ-at-risk OVH: Overlap volume histogram PTV: Planning target volume RSS: residual sum of squares SBRT: Stereotactic body radiotherapy SVDL:...
SBRT.20 McDuff et al reported a series in a Western population of 49 patients with 64 tumors that received repeat liver irradiation, with 27 of these patients receiving repeat irradiation with SBRT in 5–6 fractions (others received IMRT or 3DCRT).22 Nineteen of the 49 patients had primary ...
A statistically significantly improvement in target dose fall off was observed for ARP plans compare to MRP plans (Dose fall off: 135 for MRP and 88 for ARP, p < 0.01), while no differences in target coverage and conformity. A statistically significantly reduce in normal lung tissue were obse...
This study evaluates dosimetric differences in Stereotactic Body Radiation Therapy (SBRT) for lung tumors using plans of Gamma Knife, and Volumetric Modulated Arc Therapy (VMAT), Intensity-Modulated Radiation Therapy (IMRT) plans based on Linear Accelerator, aiming to inform the reader of appropriate ...
Comparisons of dose distributions between MLC systems for either 3DCRT or IMRTlung cases show no distinct differences that will underline the benefit of small width MLCs on tumor coverage or sensitive structure sparing, at least for the tumor sizes planned. Conclusions: Our study is the first to...
Purpose: To evaluate the dose calculation accuracy using Varian's cone‐beam CT(CBCT) for lung stereotactic body radiotherapy(SBRT). Methods: Treatment plans of 2 lungSBRT patients (1 and 2) were retrospectively studied. Both plans used 3 or 4 6MV coplanar IMRT fields, generated on an in‐...
Differences were considered significant for P <0.05. For test of correlation, it is Person’s rank test which was used. Results Tumor centroid and boundary changes Figures 4 and 5 show the tumor boundary and centroid changes for 20 patients. A positive value in the right-left (RL), ...
All four domain summary scores did not show significant differences (all p > 0.05) during the entire follow-up period. The longitudinal changes of EPIC domain summary scores are depicted in Figure 2. Figure 2. Longitudinal changes in Expanded Prostate Cancer Index Composite (EPIC) domain summary...