[MRI-assisted thermometry for regional hyperthermia and interstitial laser thermotherapy]. / MRT-gestützte Thermometrie in der regionalen Tiefenhyperthermie und interstitiellen Laserthermotherapie.
Radiologe
; 44(4): 310-9, 2004 Apr.
Article
en De
| MEDLINE
| ID: mdl-15057421
ABSTRACT
PURPOSE:
To demonstrate the potential of quantitative MRI-assisted thermometry for the treatment of tumor patients with regional hyperthermia (RHT) and interstitial laser thermotherapy (ILTT).METHODS:
Two patients and seven tissue samples were investigated using the T1-relaxation time and the chemical shift of the proton resonance frequency (PRF) as temperature sensitive MRI-parameters at 0.2 and 1.5 T. Thermotherapy was applied using either a dedicated MRI-hyperthermia hybrid system or a temperature controlled laser with 830 nm.RESULTS:
Both patients were treated successfully showing clinical benefit. T1 and PRF are depending on the applied thermotherapy method and on the MR-system suitable for MRI-assisted thermometry. The clinical application based on phantom results is not necessarily adequate.CONCLUSION:
Clinical application and phantom experiments of RHT and ILTT show the potential of MRI-assisted thermometry for further improvement of both minimal invasive thermotherapy methods. Further investigations concerning optimization of the MRI-techniques, the influence of perfusion or the determination of threshold values are necessary.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Terapia Asistida por Computador
/
Imagen por Resonancia Magnética
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Termografía
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Terapia por Láser
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Calor
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Hipertermia Inducida
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Neoplasias
Límite:
Adult
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Female
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Humans
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Male
Idioma:
De
Revista:
Radiologe
Año:
2004
Tipo del documento:
Article