“…Between MHE and HE plans there was little to no difference in OARs dose and dose falloff beyond the target. Furthermore, the dose sparing of rib V(30) and the mean dose of rings were negatively correlated with the rib and rings distance from tumor, respectively. …”
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“…Dosimetric parameters for OARs were significantly lower in ACE plans than those of TG-43. …”
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“…Six manually segmented OARs were replaced with DL auto-segmentations and the plans re-optimized (ECHO(1)). …”
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“…For these OT and non-OT patients, the homogeneity index (HI), conformity index (CI), organs at risk (OARs), average number of monitor units (MUs), and mean treatment time were similar and showed no statistically significant difference (P≥0.05). …”
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“…Both modalities showed acceptable quality of the planned target volume dose coverage with simultaneous OARs sparing. The homogeneity of target irradiation was superior for TomoTherapy. …”
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“…The hybrid radiation technique shows a good sparing of the OARs in the retrospective analysis and is robust with regards to a breast swelling of up to 1.5 cm. …”
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“…CONCLUSION: A total of 20 atlas library sizes and a minimum CT cross-slice number including CTV and OARs are enough for ensuring the accuracy and efficiency of ABAS automatic contouring during cervical cancer radiotherapy.…”
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“…DVH difference of targets and OARs remained less than 1.5% or 1 Gy. For the remaining patients, factors (i.e., inappropriate ED assignments) influenced the dosimetric agreement of the syCT vs. …”
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“…Proton therapy has been shown to offer a significant dosimetric advantage in NSCLC patients over photon therapy, with a decrease in dose to vital organs at risk (OARs) including the heart, lungs and esophagus. This in turn, can lead to a decrease in acute and late toxicities in a population already predisposed to lung and cardiac injury. …”
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“…The design of the functional lung protection plan, while meeting the target dose requirements and dose limitations of the organs at risk (OARs), minimizes the radiation dose to the functional lung, thus reducing the occurrence of radiation-induced lung injury. …”
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“…Conclusions: Modern BC RT techniques seem to enable the administration of lower doses to the OARs without compromising on the target coverage. …”
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“…The geometry evaluation was carried out using the volumetric Dice similarity coefficient (DSC) and surface DSC, and critical dose parameters were assessed based on replanning optimized by clinically approved or automatically generated CTVs and organs at risk (OARs), i.e., the Plan(ref) and Plan(test). Pearson test was used to explore the correlation between geometric metrics and dose parameters. …”
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“…For OARs, 3F-VMAT yielded the lowest mean or median values of the left lung (15.02 ± 1.57 Gy) and right lung (14.91 ± 1.14 Gy), heart (6.19 (1.96) Gy), coronary artery (15.96 ± 5.76 Gy) and liver (8.10 ± 2.70 Gy) which were significantly different from those of 9F-IMRT and 2F-VMAT. …”
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“…After delineation of target volumes and organs at risk (OARs) on the two CT slices, we finished two treatment plans by using the same target objectives, critical constraints and plan setup for each patient. …”
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“…However, the sparing of OARs shows individual behavior that depends strongly on the different tumor regions. …”
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“…The differences among GTV(CT), GTV(PET), GTV(PET-CT) and OARs in these different image sets as well as the uniformity of target dose were analysed. …”
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“…The D1cc was reduced by an average of 6% in 10/15 cases to surrounding OARs. Choice of treatment planning technique did not statistically significantly change lung V5. …”
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“…There was no clinically significant difference in CI, HI, GD, GI, D(2cm), and V20 including most of the OARs between single‐isocenter and two‐isocenter lung SBRT plans, evaluated per RTOG guidelines. …”
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“…This work characterized geometric and dosimetric intra‐fractional changes between the prostate, seminal vesicles (SVs), and organs at risk (OARs) in response to bladder filling conditions. …”
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“…CONCLUSIONS: With the use of individual 3D-printed applicators, all DVH parameters for CTV-T(HR) significantly improved without compromising the dose constraints for the OARs.…”
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