FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4246171954> ?p ?o ?g. }

• W4246171954 endingPage "S329" @default.
• W4246171954 startingPage "S329" @default.
• W4246171954 abstract "Combined with modern radiation treatment techniques, such as 3DCRT or IMRT, reduction of PTV margins in prostate cancer external beam radiotherapy [EBRT] reduces dose to nearby normal tissues and could potentially allow an increased radiation dose to the prostate. However, tight margins could lead to geographical misses due to daily prostate displacement. The purpose of this study was to compare 2 distinctly different image-guided verification methods for prostate alignment during daily radiotherapy. A prospective clinical trial was conducted whereas prostate displacements were measured in 40 patients undergoing daily EBRT for prostate cancer. Comparison was made between a two-dimensional trans-abdominal ultrasound-based system (BAT System, NOMOS, Pennsylvania) [BAT] and a three-dimensional trans-abdominal ultrasound-based system (RESTITU System, Resonant Medical, Montreal) [RES]. A total of 217 BAT and 217 RES displacements measurements were collected within a minute of each other with all patients in the supine position. For prostate alignment with the BAT, two nearly orthogonal 2D ultrasound images obtained immediately prior to treatment were compared to the position of the CT-designed treatment planning volumes (i.e., cross-modality calculation method, comparing ultrasound to CT data). The RES system compared 3D ultrasound images acquired immediately prior to the planning CT scan to those acquired immediately prior to the treatment (i.e., intra-modality calculation method, comparing ultrasound to ultrasound data). Since the RES system resides in the CT-simulation room as well, prostate displacements were also compared to those measured by CT scan, which is the gold standard since it is used for treatment planning. This comparison was done in 10 patients, who were rescanned 3 additional times, at bi-weekly intervals, during their treatment course. The prostate displacement between the planning CT and the subsequent CT scans was calculated with the AcQSim CT-Sim Software (Phillips Medical Systems, Massachusetts) and compared to the 3D-US data obtained just prior each of the CT scans. Analysis performed on the difference in the paired 217 BAT and RES prostate displacements shows a mean difference of 0.9 (95% C.I. 0.5, 1.3) mm in the lateral [LAT] direction (p < 0.0001), of 0.1 (95% C.I. -0.5, 0.7) mm in the anteroposterior [A/P] direction (p = 0.604), and 6.0 (95% C.I. 5.4, 6.6) mm in the superoinferior [S/I] direction (p < 0.0001). These trends in the difference results are similar to those determined by Langen et. al.1, who compared the BAT system and implanted radio-opaque markers. Analysis of the thirty CT-scan and RES measured prostate displacements shows mean values of 0.2 (95% C.I. -0.4, 0.8) mm in the LAT direction (p = 0.314), - 0.3 (95% C.I. -0.9, 0.3) mm in the A/P direction (p = 0.405), and 0.1 (95% C.I. -0.5, 0.7) mm in the S/I directions (p = 0.727). Our study indicates that a significant systematic difference exists between cross-modality (BAT) and intra-modality (RES) methods when assessing prostate alignment during daily EBRT. Since RES displacements are consistent with the CT displacements, a more accurate prostate alignment is obtained when the RES method is used, compared to the BAT method." @default.
• W4246171954 created "2022-05-12" @default.
• W4246171954 creator A5011800860 @default.
• W4246171954 creator A5023265387 @default.
• W4246171954 creator A5024741202 @default.
• W4246171954 creator A5030727782 @default.
• W4246171954 creator A5044903935 @default.
• W4246171954 creator A5078274025 @default.
• W4246171954 creator A5086346213 @default.
• W4246171954 creator A5091337701 @default.
• W4246171954 date "2004-09-01" @default.
• W4246171954 modified "2023-09-26" @default.
• W4246171954 title "Comparison of bat system and a new 3D trans-abdominal ultrasound-based image-guided system for prostate daily localization during external beam radiotherapy" @default.
• W4246171954 doi "https://doi.org/10.1016/s0360-3016(04)01454-3" @default.
• W4246171954 hasPublicationYear "2004" @default.
• W4246171954 type Work @default.
• W4246171954 citedByCount "1" @default.
• W4246171954 countsByYear W42461719542012 @default.
• W4246171954 crossrefType "journal-article" @default.
• W4246171954 hasAuthorship W4246171954A5011800860 @default.
• W4246171954 hasAuthorship W4246171954A5023265387 @default.
• W4246171954 hasAuthorship W4246171954A5024741202 @default.
• W4246171954 hasAuthorship W4246171954A5030727782 @default.
• W4246171954 hasAuthorship W4246171954A5044903935 @default.
• W4246171954 hasAuthorship W4246171954A5078274025 @default.
• W4246171954 hasAuthorship W4246171954A5086346213 @default.
• W4246171954 hasAuthorship W4246171954A5091337701 @default.
• W4246171954 hasConcept C121608353 @default.
• W4246171954 hasConcept C125567185 @default.
• W4246171954 hasConcept C126322002 @default.
• W4246171954 hasConcept C126838900 @default.
• W4246171954 hasConcept C141071460 @default.
• W4246171954 hasConcept C143753070 @default.
• W4246171954 hasConcept C201645570 @default.
• W4246171954 hasConcept C2775908122 @default.
• W4246171954 hasConcept C2776235491 @default.
• W4246171954 hasConcept C2777416452 @default.
• W4246171954 hasConcept C2780192828 @default.
• W4246171954 hasConcept C2989005 @default.
• W4246171954 hasConcept C509974204 @default.
• W4246171954 hasConcept C71924100 @default.
• W4246171954 hasConceptScore W4246171954C121608353 @default.
• W4246171954 hasConceptScore W4246171954C125567185 @default.
• W4246171954 hasConceptScore W4246171954C126322002 @default.
• W4246171954 hasConceptScore W4246171954C126838900 @default.
• W4246171954 hasConceptScore W4246171954C141071460 @default.
• W4246171954 hasConceptScore W4246171954C143753070 @default.
• W4246171954 hasConceptScore W4246171954C201645570 @default.
• W4246171954 hasConceptScore W4246171954C2775908122 @default.
• W4246171954 hasConceptScore W4246171954C2776235491 @default.
• W4246171954 hasConceptScore W4246171954C2777416452 @default.
• W4246171954 hasConceptScore W4246171954C2780192828 @default.
• W4246171954 hasConceptScore W4246171954C2989005 @default.
• W4246171954 hasConceptScore W4246171954C509974204 @default.
• W4246171954 hasConceptScore W4246171954C71924100 @default.
• W4246171954 hasLocation W42461719541 @default.
• W4246171954 hasOpenAccess W4246171954 @default.
• W4246171954 hasPrimaryLocation W42461719541 @default.
• W4246171954 hasRelatedWork W1970337331 @default.
• W4246171954 hasRelatedWork W2023503398 @default.
• W4246171954 hasRelatedWork W2027294118 @default.
• W4246171954 hasRelatedWork W2065840363 @default.
• W4246171954 hasRelatedWork W2138863125 @default.
• W4246171954 hasRelatedWork W2383175641 @default.
• W4246171954 hasRelatedWork W2597301728 @default.
• W4246171954 hasRelatedWork W2804276825 @default.
• W4246171954 hasRelatedWork W3032252569 @default.
• W4246171954 hasRelatedWork W4315647262 @default.
• W4246171954 hasVolume "60" @default.
• W4246171954 isParatext "false" @default.
• W4246171954 isRetracted "false" @default.
• W4246171954 workType "article" @default.