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Clinical application of a OneDose tm mosfet for skin dose measurements during internal mammary chain irradiation with high dose rate brachytherapy in carcinoma of the breast

In Physics in Medicine and Biology
By: Kinhikar RA.
Contributor(s): Shrivastava SK | Deshpande D | Sarin R | Mahantshetty UM | Tambe CM | Sharma PK | .
Material type: materialTypeLabelArticleSeries: Vol 51 Issues.Publisher: 2006Description: N263-N268.Subject(s): Measurements | Mosfet | Breast carcinoma | Brachytherapy | DDC classification: In: Physics in Medicine and BiologySummary: In our earlier study, we experimentally evaluated the characteristics of a newly designed metal oxide emiconductor field effect transistor (MOSFET) OneDoseTM in-vivo osimetry system for Ir-192 (380 keV) energy and the results were compared with thermoluminescent dosimeters (TLDs). We have now extended the same study to the clinical application of this MOSFET as an in-vivo dosimetry system. The OSFET was used during high dose rate brachytherapy (HDRBT) of internal mammary chain (IMC) irradiation for a carcinoma of the breast. The aim of this study was to measure the skin dose during IMC irradiation with a MOSFET and a TLD and compare it with the calculated dose with a treatment planning system (TPS). The skin dose was measured for ten patients. All the patients treatment was planned on a PLATO treatment planning system. TLD measurements were erformed to compare the accuracy of the measured results from the MOSFET. The mean doses measured with the MOSFET and the TLD were identical (0.5392 Gy, 15.85% of the
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In our earlier study, we experimentally evaluated the characteristics of a newly designed metal oxide emiconductor field effect transistor (MOSFET) OneDoseTM in-vivo osimetry system for Ir-192 (380 keV) energy and the results were compared with thermoluminescent dosimeters (TLDs). We have now extended the same study to the clinical application of this MOSFET as an in-vivo dosimetry system. The OSFET was used during high dose rate brachytherapy (HDRBT) of internal mammary chain (IMC) irradiation for a carcinoma of the breast. The aim of this study was to measure the skin dose during IMC irradiation with a MOSFET and a TLD and compare it with the calculated dose with a treatment planning system (TPS). The skin dose was measured for ten patients. All the patients treatment was planned on a PLATO treatment planning system. TLD measurements were erformed to compare the accuracy of the measured results from the MOSFET. The mean doses measured with the MOSFET and the TLD were identical (0.5392 Gy, 15.85%
of the

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