Comparative Study between Field-in-Field and IMRT Techniques in Prostate Cancer Radiotherapy: A Treatment Planning Study
| Autor: | Tamer Dawod, Sabbah I. Hammoury |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
business.industry
medicine.medical_treatment Radiation dose Normal tissue Intensity-modulated radiation therapy medicine.disease 030218 nuclear medicine & medical imaging Radiation therapy 03 medical and health sciences Prostate cancer 0302 clinical medicine 030220 oncology & carcinogenesis Imrt planning Medicine Field in field business Nuclear medicine Radiation treatment planning neoplasms therapeutics |
| Zdroj: | International Journal of Medical Physics, Clinical Engineering and Radiation Oncology. :18-25 |
| ISSN: | 2168-5444 2168-5436 |
| DOI: | 10.4236/ijmpcero.2016.51002 |
| Popis: | Introduction: Field-in-Field (FIF) and Intensity Modulated Radiation Therapy (IMRT) are two advanced radiation therapy planning techniques. Both of them are being used to achieve the same two related aims which are, to expose the targeted tumor to the full radiation dose and to spare the nearby normal tissues (or organs) from being exposed to high amounts of radiation more than its tolerance dose limits. FIF is a forward planning while IMRT is an inverse planning and FIF is a forward IMRT. Aim: The purpose of this study was to compare between Field-in-Field and IMRT techniques in prostate cancer radiotherapy. Method: A treatment planning system supporting both inverse and forward planning facilities is used. Ten prostate cancer patients were planned with both FIF and IMRT planning techniques. Doses received by the Planning Target Volume (PTV) and Organs at Risk (OARs) were compared in the two methods quantitatively from Dose Volume Histograms (DVHs) and qualitatively from (axial cuts). Results: The results showed that the IMRT planning technique achieved better dose coverage to the PTV than the FIF planning technique but, except RT and LT Femoral Heads, FIF achieved a better protection to the Rectum and the Bladder (OARs) than IMRT. Conclusions: The results showed that the inverse planning based IMRT technique is better and recommended in the prostate cancer radiotherapy than the FIF technique. |
| Databáze: | OpenAIRE |
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