Matches in SemOpenAlex for { <https://semopenalex.org/work/W2463673559> ?p ?o ?g. }
Showing items 1 to 84 of
84
with 100 items per page.
- W2463673559 abstract "Purpose:Spinal stereotactic body radiotherapy (SBRT) involves highly conformal dose distributions and steep dose gradients due to the proximity of the spinal cord to the treatment volume. To achieve the planning goals while limiting the spinal cord dose, patients are setup using kV cone-beam CT (kV-CBCT) with 6 degree corrections. The kV-CBCT registration with the reference CT is dependent on a user selected region of interest (ROI). The objective of this work is to determine the dosimetric impact of ROI selection.Methods:Twenty patients were selected for this study. For each patient, the kV-CBCT was registered to the reference CT using three ROIs including: 1) the external body, 2) a large anatomic region, and 3) a small region focused in the target volume. Following each registration, the aligned CBCTs and contours were input to the treatment planning system for dose evaluation. The minimum dose, dose to 99% and 90% of the tumor volume (D99%, D90%), dose to 0.03cc and the dose to 10% of the spinal cord subvolume (V10Gy) were compared to the planned values.Results:The average deviations in the tumor minimum dose were 2.68%±1.7%, 4.6%±4.0%, 14.82%±9.9% for small, large and the external ROIs, respectively. The average deviations in tumor D99% were 1.15%±0.7%, 3.18%±1.7%, 10.0%±6.6%, respectively. The average deviations in tumor D90% were 1.00%±0.96%, 1.14%±1.05%, 3.19%±4.77% respectively. The average deviations in the maximum dose to the spinal cord were 2.80%±2.56%, 7.58%±8.28%, 13.35%±13.14%, respectively. The average deviation in V10Gy to the spinal cord were 1.69%±0.88%, 1.98%±2.79%, 2.71%±5.63%.Conclusion:When using automated registration algorithms for CBCT-Reference alignment, a small target-focused ROI results in the least dosimetric deviation from the plan. It is recommended to focus narrowly on the target volume to keep the spinal cord dose below tolerance." @default.
- W2463673559 created "2016-07-22" @default.
- W2463673559 creator A5036420445 @default.
- W2463673559 creator A5046981277 @default.
- W2463673559 creator A5049890023 @default.
- W2463673559 creator A5058440874 @default.
- W2463673559 creator A5087295298 @default.
- W2463673559 date "2016-06-01" @default.
- W2463673559 modified "2023-09-26" @default.
- W2463673559 title "SU-F-J-29: Dosimetric Effect of Image Registration ROI Size and Focus in Automated CBCT Registration for Spine SBRT" @default.
- W2463673559 doi "https://doi.org/10.1118/1.4955937" @default.
- W2463673559 hasPublicationYear "2016" @default.
- W2463673559 type Work @default.
- W2463673559 sameAs 2463673559 @default.
- W2463673559 citedByCount "0" @default.
- W2463673559 crossrefType "journal-article" @default.
- W2463673559 hasAuthorship W2463673559A5036420445 @default.
- W2463673559 hasAuthorship W2463673559A5046981277 @default.
- W2463673559 hasAuthorship W2463673559A5049890023 @default.
- W2463673559 hasAuthorship W2463673559A5058440874 @default.
- W2463673559 hasAuthorship W2463673559A5087295298 @default.
- W2463673559 hasConcept C115961682 @default.
- W2463673559 hasConcept C118552586 @default.
- W2463673559 hasConcept C126838900 @default.
- W2463673559 hasConcept C154945302 @default.
- W2463673559 hasConcept C166704113 @default.
- W2463673559 hasConcept C201645570 @default.
- W2463673559 hasConcept C2779813781 @default.
- W2463673559 hasConcept C2780387249 @default.
- W2463673559 hasConcept C2780775167 @default.
- W2463673559 hasConcept C2989005 @default.
- W2463673559 hasConcept C3018399558 @default.
- W2463673559 hasConcept C31601959 @default.
- W2463673559 hasConcept C41008148 @default.
- W2463673559 hasConcept C509974204 @default.
- W2463673559 hasConcept C544519230 @default.
- W2463673559 hasConcept C71924100 @default.
- W2463673559 hasConcept C75088862 @default.
- W2463673559 hasConcept C9267231 @default.
- W2463673559 hasConceptScore W2463673559C115961682 @default.
- W2463673559 hasConceptScore W2463673559C118552586 @default.
- W2463673559 hasConceptScore W2463673559C126838900 @default.
- W2463673559 hasConceptScore W2463673559C154945302 @default.
- W2463673559 hasConceptScore W2463673559C166704113 @default.
- W2463673559 hasConceptScore W2463673559C201645570 @default.
- W2463673559 hasConceptScore W2463673559C2779813781 @default.
- W2463673559 hasConceptScore W2463673559C2780387249 @default.
- W2463673559 hasConceptScore W2463673559C2780775167 @default.
- W2463673559 hasConceptScore W2463673559C2989005 @default.
- W2463673559 hasConceptScore W2463673559C3018399558 @default.
- W2463673559 hasConceptScore W2463673559C31601959 @default.
- W2463673559 hasConceptScore W2463673559C41008148 @default.
- W2463673559 hasConceptScore W2463673559C509974204 @default.
- W2463673559 hasConceptScore W2463673559C544519230 @default.
- W2463673559 hasConceptScore W2463673559C71924100 @default.
- W2463673559 hasConceptScore W2463673559C75088862 @default.
- W2463673559 hasConceptScore W2463673559C9267231 @default.
- W2463673559 hasLocation W24636735591 @default.
- W2463673559 hasOpenAccess W2463673559 @default.
- W2463673559 hasPrimaryLocation W24636735591 @default.
- W2463673559 hasRelatedWork W1423219471 @default.
- W2463673559 hasRelatedWork W1955845192 @default.
- W2463673559 hasRelatedWork W1968093995 @default.
- W2463673559 hasRelatedWork W1984197008 @default.
- W2463673559 hasRelatedWork W2023383397 @default.
- W2463673559 hasRelatedWork W2031676903 @default.
- W2463673559 hasRelatedWork W2058473115 @default.
- W2463673559 hasRelatedWork W2069588181 @default.
- W2463673559 hasRelatedWork W2073243031 @default.
- W2463673559 hasRelatedWork W2093420221 @default.
- W2463673559 hasRelatedWork W2094588507 @default.
- W2463673559 hasRelatedWork W2117949221 @default.
- W2463673559 hasRelatedWork W2266150811 @default.
- W2463673559 hasRelatedWork W2380583203 @default.
- W2463673559 hasRelatedWork W2461797808 @default.
- W2463673559 hasRelatedWork W2464476092 @default.
- W2463673559 hasRelatedWork W2744262849 @default.
- W2463673559 hasRelatedWork W3031942624 @default.
- W2463673559 hasRelatedWork W3093164637 @default.
- W2463673559 hasRelatedWork W996930675 @default.
- W2463673559 isParatext "false" @default.
- W2463673559 isRetracted "false" @default.
- W2463673559 magId "2463673559" @default.
- W2463673559 workType "article" @default.