Utilization of cone-beam CT for offline evaluation of target volume coverage during prostate image-guided radiotherapy based on bony anatomy alignment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00179906%3A_____%2F12%3A10123857" target="_blank" >RIV/00179906:_____/12:10123857 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11150/12:10123857

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S1507136712000478" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1507136712000478</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.rpor.2012.03.003" target="_blank" >10.1016/j.rpor.2012.03.003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Utilization of cone-beam CT for offline evaluation of target volume coverage during prostate image-guided radiotherapy based on bony anatomy alignment

Popis výsledku v původním jazyce

To assess target volume coverage during prostate image-guided radiotherapy based on bony anatomy alignment and to assess possibility of safety margin reduction. Implementation of IGRT should influence safety margins. Utilization of conebeam CT provides current 3D anatomic information directly in irradiation position. Such information enables reconstruction of the actual dose distribution. In 12 % of reconstructed plans the prostate coverage was not sufficient. The prostate underdosage was observed in 5patients. Coverage of seminal vesicles was not satisfactory in 3 % of plans. Most of the target underdosage corresponded to excessive rectal of bladder filling. Evaluation of alternative plans assuming a smaller 7 mm margin revealed 22 % and 11 % of plans where prostate and seminal vesicles coverage, respectively, was compromised. These were distributed over 8 and 7 patients, respectively. Sufficient dose coverage of target volumes was not achieved for all patients. Reducing of safety ma

Název v anglickém jazyce

Utilization of cone-beam CT for offline evaluation of target volume coverage during prostate image-guided radiotherapy based on bony anatomy alignment

Popis výsledku anglicky

To assess target volume coverage during prostate image-guided radiotherapy based on bony anatomy alignment and to assess possibility of safety margin reduction. Implementation of IGRT should influence safety margins. Utilization of conebeam CT provides current 3D anatomic information directly in irradiation position. Such information enables reconstruction of the actual dose distribution. In 12 % of reconstructed plans the prostate coverage was not sufficient. The prostate underdosage was observed in 5patients. Coverage of seminal vesicles was not satisfactory in 3 % of plans. Most of the target underdosage corresponded to excessive rectal of bladder filling. Evaluation of alternative plans assuming a smaller 7 mm margin revealed 22 % and 11 % of plans where prostate and seminal vesicles coverage, respectively, was compromised. These were distributed over 8 and 7 patients, respectively. Sufficient dose coverage of target volumes was not achieved for all patients. Reducing of safety ma

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

FD - Onkologie a hematologie

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Reports of Practical Oncology and Radiotherapy

ISSN

1507-1367

e-ISSN

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Svazek periodika

17

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

7

Strana od-do

134-140

Kód UT WoS článku

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EID výsledku v databázi Scopus

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