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Gold seed fiducial markers

Portuguese translation: marcadores/marcas fiduciais de sementes de ouro (aplicação de)

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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:Gold seed fiducial markers
Portuguese translation:marcadores/marcas fiduciais de sementes de ouro (aplicação de)
Entered by: Elizabeth Braga
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09:53 Mar 15, 2007
English to Portuguese translations [PRO]
Medical - Medical: Instruments / endocavitary coils
English term or phrase: Gold seed fiducial markers
Do not use the endo cavitary coil when any of the following is indicated:
Gold seed fiducial markers within the last 3 weeks.
Elizabeth Braga
Local time: 11:18
marcadores/marcas fiduciais de sementes de ouro (aplicação de)
Explanation:
Marcas fiduciais (de referência) é um terro muito usado em fotografia, mas também em imagiologia. Neste caso, penso que as sementes de ouro servem como marcas/marcadores de um determinado órgão, quando se faz radioterapia - para que a radiação seja efectivamente apontada para o local onde está o tumor.
Parece ser uma técnica relativamente recente e diferente da braquiterapia - técnica em que são aplicadas sementes de ouro ou iodo radioactivas para tratar o tumor localmente; aqui, parecem servir apenas como pontos de referência (sendo apenas radiopacas e não radioactivas).

marcas fiduciais (marcas de referência,. dispostas no ponto médio dos mtc-m16.sid.inpe.br/col/sid.inpe.br/jeferson/2004/04.01.09.07/doc/publicacao.pdf

documentados recorre a marcas de referência. (Marcas Fiduciais), ltodi.est.ips.pt/jbraz/ficheiros/pubs/2005_13epcg_jbraz.pdf


Fiducial markers are gold seeds or stainless steel screws that are implanted in and/or around a soft tissue tumor, or within the bony spine, to act as a radiologic landmark, to define the target lesion's position with millimeter precision. They are typically placed using a CT or other image-guided percutaneous method. There may be other appropriate fiducial placement methods as well, including endoscopic or surgical approaches, if determined best by the participating physicians. To track lesions in 6 degrees (translational and rotational movements), fiducials may be recommended, depending upon the exact circumstance and lesion. Fiducials must be fixed relative to other fiducials and relative to the tumor to ensure targeting accuracy.

Approved Fiducials

Stainless Steel Screw (2.0 x 5.0mm) embedded within bone. Self-drilling and self-tapping screws provide optimal contrast again the bone and minimize migration. These are typically used for spine applications.
Gold Seeds ( 0.8 mm x 5 mm) are typically used for soft tissue lesionshttp://www.sdcyberknife.com/fiducial.htm

To use gold seeds as fiducial markers to identify prostate movement between radiation fractions for IMRT http://rsna2004.rsna.org/rsna2004/V2004/conference/event_dis...
Selected response from:

Dora Matos
Portugal
Local time: 15:18
Grading comment
Poxa, Dora, que pesquisa! Muito obrigada pela ajuda.
4 KudoZ points were awarded for this answer

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Summary of answers provided
5marcadores/marcas fiduciais de sementes de ouro (aplicação de)
Dora Matos


  

Answers


1 hr   confidence: Answerer confidence 5/5
gold seed fiducial markers
marcadores/marcas fiduciais de sementes de ouro (aplicação de)


Explanation:
Marcas fiduciais (de referência) é um terro muito usado em fotografia, mas também em imagiologia. Neste caso, penso que as sementes de ouro servem como marcas/marcadores de um determinado órgão, quando se faz radioterapia - para que a radiação seja efectivamente apontada para o local onde está o tumor.
Parece ser uma técnica relativamente recente e diferente da braquiterapia - técnica em que são aplicadas sementes de ouro ou iodo radioactivas para tratar o tumor localmente; aqui, parecem servir apenas como pontos de referência (sendo apenas radiopacas e não radioactivas).

marcas fiduciais (marcas de referência,. dispostas no ponto médio dos mtc-m16.sid.inpe.br/col/sid.inpe.br/jeferson/2004/04.01.09.07/doc/publicacao.pdf

documentados recorre a marcas de referência. (Marcas Fiduciais), ltodi.est.ips.pt/jbraz/ficheiros/pubs/2005_13epcg_jbraz.pdf


Fiducial markers are gold seeds or stainless steel screws that are implanted in and/or around a soft tissue tumor, or within the bony spine, to act as a radiologic landmark, to define the target lesion's position with millimeter precision. They are typically placed using a CT or other image-guided percutaneous method. There may be other appropriate fiducial placement methods as well, including endoscopic or surgical approaches, if determined best by the participating physicians. To track lesions in 6 degrees (translational and rotational movements), fiducials may be recommended, depending upon the exact circumstance and lesion. Fiducials must be fixed relative to other fiducials and relative to the tumor to ensure targeting accuracy.

Approved Fiducials

Stainless Steel Screw (2.0 x 5.0mm) embedded within bone. Self-drilling and self-tapping screws provide optimal contrast again the bone and minimize migration. These are typically used for spine applications.
Gold Seeds ( 0.8 mm x 5 mm) are typically used for soft tissue lesionshttp://www.sdcyberknife.com/fiducial.htm

To use gold seeds as fiducial markers to identify prostate movement between radiation fractions for IMRT http://rsna2004.rsna.org/rsna2004/V2004/conference/event_dis...

Dora Matos
Portugal
Local time: 15:18
Works in field
Native speaker of: Native in PortuguesePortuguese
PRO pts in category: 111
Grading comment
Poxa, Dora, que pesquisa! Muito obrigada pela ajuda.
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