Mostrando 1,221 - 1,240 Resultados de 2,457 Para Buscar '"Oar"', tiempo de consulta: 0.29s Limitar resultados
  1. 1221
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  6. 1226
    “…Dose constraints were met for 65.2-100% of mandatory OARs. Statistically significant correlations were observed between the subjective acceptability of contours and the ability to meet dose constraints for all OARs (p ≤ 0.01) except for the parotids and spinal cord. …”
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  7. 1227
    “…Subsequently, all patients were treated with external beam radiation therapy (EBRT) followed by multichannel vaginal cylinder (MVC)-based VBT using graphic optimization for shaping the isodose to improve the clinical target volume (CTV) coverage, as well as to spare the organs at risk (OAR). The dose to the bladder and rectum with regard to 0.1 cc, 1 cc, and 2 cc were recorded. …”
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  13. 1233
    “…The exquisite soft-tissue contrast of magnetic resonance imaging (MRI) has meant that the technique is having an increasing role in contouring the gross tumor volume (GTV) and organs at risk (OAR) in radiation therapy treatment planning systems (TPS). …”
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  14. 1234
    “…The ADC-based target differentiation and dose optimization may facilitate conformal dose distribution to the aCTV(HR) and OAR sparing in an IMRT plan. GRAPHICAL ABSTRACT: [Image: see text]…”
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  17. 1237
    “…In terms of LAD, 3DHT plans with complete block of LAD showed extremely low dose, while dose increase in other OARs were observed, when compared with other plans. …”
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  18. 1238
    “…METHODS AND MATERIAL: Real time prostate motion was analysed for 26 patients and 742 fractions; 12 patients with and 14 patients without hydrogel (SpaceOAR™). The intra-fraction motion was quantified and compared between the two groups. …”
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  19. 1239
    “…The BDC approach provided significantly superior dose homogeneity/conformity by 23%–48%/6%–9% compared with both the initial and LDC IMRT plans, as well as reduced doses to the organs at risk (OARs) by up to 18%, with acceptable MU numbers. Compared with VMAT, BDC IMRT yielded superior homogeneity, inferior conformity and comparable overall OAR sparing. …”
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  20. 1240
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