Matches in SemOpenAlex for { <https://semopenalex.org/work/W2019082015> ?p ?o ?g. }
Showing items 1 to 76 of
76
with 100 items per page.
- W2019082015 endingPage "367" @default.
- W2019082015 startingPage "367" @default.
- W2019082015 abstract "Purpose: Rotational errors in patient setup are well characterized with cone beam CT imaging. One typical approach makes 3D and 4D corrections only, and continues with treatment. Due to the difficulty of computing the effect of rotations on delivered dose, many centers utilize class solutions based on treatment site to determine if roll and pitch can generally be neglected. This study examines the effects of rotation on dose distribution for individuals and classes. Methods: Proprietary software was developed that automates the entire evaluation process which begins with DICOM files exported from Eclipse 8.6. The effects of patient rotation perturbations on the dose-volume histogram are compared to the baseline DVH via TCP-NTCP analysis. A retrospective study was conducted using eight nasal tumor canine patients. Virtual rotation perturbations of up to 10 degrees about a vector set uniformly spaced over a 2π hemisphere were induced and doses to target and organs were recomputed. For this study, the evaluation was limited to a single organ proximal to the tumor (left or right eye lens). For each patient, the changes to the original baseline values (dTCP and dNTCP) were computed as a function of rotational error. Individual and group metrics were obtained. Results: At 10 degrees rotation mean dTCP decreases by 53% (S.D. +/−66%), while mean dNTCP values increase 6% (S.D. +/−22%). Both begin to make sharp deviations from their base values around 3 to 4 degrees deviation, however statistical analysis shows no significant deviation from the baseline out to 10 degrees (p=0.05). For individual cases dTCP reductions of 50% as early as 4 degrees rotation were observed. Conclusion: While class solutions to errors in rotation are helpful for general solutions, a patient by patient analysis for dose changes with rotational errors may be required to avoid significant deviations between planned and delivered dose." @default.
- W2019082015 created "2016-06-24" @default.
- W2019082015 creator A5004921008 @default.
- W2019082015 creator A5031021988 @default.
- W2019082015 creator A5052929117 @default.
- W2019082015 creator A5085221789 @default.
- W2019082015 date "2013-06-01" @default.
- W2019082015 modified "2023-10-18" @default.
- W2019082015 title "SU-E-T-700: Characterization of the Dosimetric Impact of Rotational Errors On Individual Patients in IMRT Plan Using a Canine Model" @default.
- W2019082015 doi "https://doi.org/10.1118/1.4815127" @default.
- W2019082015 hasPublicationYear "2013" @default.
- W2019082015 type Work @default.
- W2019082015 sameAs 2019082015 @default.
- W2019082015 citedByCount "0" @default.
- W2019082015 crossrefType "journal-article" @default.
- W2019082015 hasAuthorship W2019082015A5004921008 @default.
- W2019082015 hasAuthorship W2019082015A5031021988 @default.
- W2019082015 hasAuthorship W2019082015A5052929117 @default.
- W2019082015 hasAuthorship W2019082015A5085221789 @default.
- W2019082015 hasConcept C105795698 @default.
- W2019082015 hasConcept C115961682 @default.
- W2019082015 hasConcept C120934525 @default.
- W2019082015 hasConcept C126838900 @default.
- W2019082015 hasConcept C141071460 @default.
- W2019082015 hasConcept C154945302 @default.
- W2019082015 hasConcept C22679943 @default.
- W2019082015 hasConcept C2524010 @default.
- W2019082015 hasConcept C2779813781 @default.
- W2019082015 hasConcept C2989005 @default.
- W2019082015 hasConcept C33923547 @default.
- W2019082015 hasConcept C41008148 @default.
- W2019082015 hasConcept C53533937 @default.
- W2019082015 hasConcept C544519230 @default.
- W2019082015 hasConcept C71924100 @default.
- W2019082015 hasConcept C74050887 @default.
- W2019082015 hasConcept C75088862 @default.
- W2019082015 hasConcept C77331912 @default.
- W2019082015 hasConceptScore W2019082015C105795698 @default.
- W2019082015 hasConceptScore W2019082015C115961682 @default.
- W2019082015 hasConceptScore W2019082015C120934525 @default.
- W2019082015 hasConceptScore W2019082015C126838900 @default.
- W2019082015 hasConceptScore W2019082015C141071460 @default.
- W2019082015 hasConceptScore W2019082015C154945302 @default.
- W2019082015 hasConceptScore W2019082015C22679943 @default.
- W2019082015 hasConceptScore W2019082015C2524010 @default.
- W2019082015 hasConceptScore W2019082015C2779813781 @default.
- W2019082015 hasConceptScore W2019082015C2989005 @default.
- W2019082015 hasConceptScore W2019082015C33923547 @default.
- W2019082015 hasConceptScore W2019082015C41008148 @default.
- W2019082015 hasConceptScore W2019082015C53533937 @default.
- W2019082015 hasConceptScore W2019082015C544519230 @default.
- W2019082015 hasConceptScore W2019082015C71924100 @default.
- W2019082015 hasConceptScore W2019082015C74050887 @default.
- W2019082015 hasConceptScore W2019082015C75088862 @default.
- W2019082015 hasConceptScore W2019082015C77331912 @default.
- W2019082015 hasIssue "6Part22" @default.
- W2019082015 hasLocation W20190820151 @default.
- W2019082015 hasOpenAccess W2019082015 @default.
- W2019082015 hasPrimaryLocation W20190820151 @default.
- W2019082015 hasRelatedWork W1996344890 @default.
- W2019082015 hasRelatedWork W2019082015 @default.
- W2019082015 hasRelatedWork W2029797738 @default.
- W2019082015 hasRelatedWork W2072197848 @default.
- W2019082015 hasRelatedWork W2078275218 @default.
- W2019082015 hasRelatedWork W2899150111 @default.
- W2019082015 hasRelatedWork W2948455515 @default.
- W2019082015 hasRelatedWork W3028967573 @default.
- W2019082015 hasRelatedWork W3092440924 @default.
- W2019082015 hasRelatedWork W3159061934 @default.
- W2019082015 hasVolume "40" @default.
- W2019082015 isParatext "false" @default.
- W2019082015 isRetracted "false" @default.
- W2019082015 magId "2019082015" @default.
- W2019082015 workType "article" @default.