Mostrando 1,381 - 1,400 Resultados de 2,457 Para Buscar '"Oar"', tiempo de consulta: 0.75s Limitar resultados
  1. 1381
    “…The Ovis aries reference genome (Oar v3.1) includes 27,504 genes (20,921 protein coding), of which 25,350 (19,921 protein coding) had detectable expression in at least one tissue in the sheep gene expression atlas dataset. …”
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  2. 1382
    “…The plans were compared on target coverage, conformity, homogeneity, dose to organs at risk (OAR), low dose to the surrounding tissue, total monitor units (MU), and treatment time. …”
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  3. 1383
  4. 1384
    “…Various cranial sites were treated among the patients to prescription doses ranging from 45 to 54 Gy. Organs at risk (OARs) evaluated were patient‐dependent; 15 unique OARs were analyzed, all of which were assessed in at least 10 patients. …”
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  5. 1385
    “…Furthermore, the maximum increase of dose to the PTV in the last set of comparative analyses was 8 Gy with similar doses to OARs as the other VMAT plans. The maximum increase of dose was 2.50 Gy to the rectum and the maximum decrease of dose was 0.70 Gy to the bladder. …”
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  6. 1386
    “…In the standard plan, optimization considered organs at risk (OAR), dose conformity, maximum dose [Formula: see text] to spinal cord and [Formula: see text] to brain stem. …”
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  7. 1387
    “…Apart from the target reference point dose measurements, various dose parameters for the planning target volume (PTV) and organs at risk (OARs) were assessed. In addition, the “Fractional Deviation” (FDev) was also calculated for comparison, which was defined as the ratio of the RAT and MC values. …”
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  8. 1388
    “…When calculated with the 4° spacing, the overall mean point dose errors measured with an ion chamber were [Formula: see text] and [Formula: see text] for the PTV and OAR, respectively. The γ(3%, 3 mm) passing rate, measured for absolute dose with a biplanar diode array, was [Formula: see text] (range 94.5–99.9%). …”
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  9. 1389
    “…Dose to the organs at risk (OARs) (kidney, liver, spinal cord, and bowel space), unspecified tissue, and dose evaluation volumes (DEVs) at 1, 2, and 5 cm from PTV were calculated and compared. …”
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  10. 1390
    “…Each of IMRT, SA-VMAT, PA-VMAT, 2PA-VMAT strategy had individual advantages, and therefore it may be crucial to employ different planning techniques for different disease classifications and OAR requirements.…”
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  11. 1391
    por Holloway, S M, Holloway, M D, Thomas, S J
    Publicado 2018
    “…If the uncertainty model is inaccurate then the plan will produce under-dosing of the target and/or overdosing of OAR. We aim to provide a method for which centre and site-specific population range uncertainty due to inter-fraction motion can be quantified to improve the uncertainty model in proton treatment planning. …”
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  12. 1392
  13. 1393
    “…The dosimetric advantages of JTSA over SA were evaluated in terms of a dose‐volume histogram (DVH) of organ at risk (OAR) after renormalizing both plans to make the same target coverage. …”
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  14. 1394
  15. 1395
    “…Meanwhile, the doses received by organs-at-risk (OAR) including the heart, ipsilateral lung and contralateral lung were not statistically different (p > 0.05).…”
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  16. 1396
  17. 1397
  18. 1398
    “…METHODS: In all, 34 patients with 40 brain metastases, each treated over a period of 7 days in three separate gamma knife radiosurgery sessions (GKRS 1-3) between November 2013 and August 2017, were retrospectively analyzed in terms of tumor volume reduction, salvage of organs at risk (OAR), and radiation induced toxicity under the period of treatment (GKRS 1-3 = one week) and at first follow-up magnetic resonance imaging (MRI) (4 weeks after GKRS 3). …”
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  19. 1399
  20. 1400
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