Mostrando 2,001 - 2,020 Resultados de 2,457 Para Buscar '"Oar"', tiempo de consulta: 0.09s Limitar resultados
  1. 2001
    “…It was feasible to perform stereotactic high-precision RT after defining tumor and OARs by CT imaging. After stereotactic RT, a high rate of DNA damage was mainly observed in the tumor but not in OARs. …”
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  2. 2002
    por Reitz, Bodo, Miften, Moyed
    Publicado 2008
    “…The plans were optimized to achieve the same clinical objectives concerning dose to the target volume and to the relevant organs‐at‐risk (OARs). The number of intensity levels were minimized until the clinical objectives could not be achieved anymore. …”
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  3. 2003
    “…It includes two integrated indices 1.Integrated Dosimetric Index for tumor (IDI(Tumor)) dose coverage and 2.Integrated Dosimetic Index (IDI(organs)) for Organs At Risk (OARs). PQI was used to select better dosimetric plan form multiple VMAT plans of a Nasopharynx case. …”
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  4. 2004
  5. 2005
    “…Conclusion Our findings reveal distinct radiation exposure patterns to OARs of nasopharyngeal carcinoma. This research emphasises the need for tailored radiation therapy planning to achieve optimal clinical outcomes while safeguarding vital organs.…”
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  6. 2006
  7. 2007
  8. 2008
    “…RA plans were evaluated in terms of planning target volume (PTV) coverage, dose to organs at risk (OARs), conformity index (CI), homogeneity index (HI), gradient measure, external volume index of dose distribution produced, total number of monitor units (MUs), nontumor integral dose (ID), and low dose volume of normal tissue. …”
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  9. 2009
  10. 2010
  11. 2011
    “…Differences in target volumes and dose distributions in OARs and PTVs were then evaluated with various metrics such as the DICE Similarity Coefficient and the homogeneity index. …”
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  12. 2012
    “…A planning target volume (PTV) and organs at risk (OARs) were recorded with DVH analysis. RESULTS: The study describes the full procedure of breast HDR brachytherapy with the lumpectomy. …”
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  13. 2013
  14. 2014
  15. 2015
    por Park, So Hyun, Choi, Jinhyun
    Publicado 2021
    “…CONCLUSION: The application of a radiation bra was associated with better geometric and dosimetric planning parameters, with a smaller CTV and lower doses to the OARs (lungs and heart) in the radiotherapy field. …”
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  16. 2016
    “…Recently, proton therapy has been evaluated for mediastinal HL treatment, due to its possibility to significantly reduce integral dose to OARs, which is expected to limit second neoplasm risk and reduce late toxicity. …”
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  17. 2017
    “…Modern inverse planning radiotherapy techniques allow for organs at risk (OARs) to evade radiation doses that they would have been subjected to with earlier techniques. …”
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  18. 2018
    “…Rectum and bladder were considered reference organs at risk (OARs). Following dose (D) parameters were examined: D(max) (0.5 cc), D(20%) and D(50%) for rectum, D(max) (0.5 cc) and D(50%) for bladder; for each parameter, differences between the two adopted methods were reported as Δ-values. …”
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  19. 2019
    “…MAIN OUTCOMES AND MEASURES: The main outcomes were organs at risk (OARs) dosimetric outcomes, prognosis (overall survival [OS], progression-free survival [PFS], and objective response rate [ORR]), and radiation-related toxic effects. …”
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  20. 2020
    “…However, this could cause underdosage of the treatment volume and overdosage of the organs at risk (OARs). To reduce this problem, in this proof of principle study we developed and evaluated a novel adaptive planning method. …”
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