Mostrando 661 - 680 Resultados de 2,457 Para Buscar '"Oar"', tiempo de consulta: 0.38s Limitar resultados
  1. 661
    “…METHODS: Inbred 129 mice and their IFNAR KO (A129) mice were subcutaneously inoculated with 10(0), 10(2), 10(4) or 10(6) pfu of JaOArS982 strain of JEV. Mice were weighed daily and observed for clinical signs. …”
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  2. 662
    “…In sheep, the regions with extreme scores were localized on autosome OAR-2 harbouring the MSTN gene for double muscling and on OAR-10 harbouring the RXFP2 gene for polledness. …”
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  3. 663
    “…In this study, we investigated the dosimetric consequences of the inter-play effect on target and organs at risk (OAR) by simulating dynamic dose delivery using dynamic CT datasets. …”
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  4. 664
    “…PURPOSE: The endobronchial brachytherapy (EBBT) is an established treatment method for tumors of the tracheobronchial system, however, little is known about the tolerance dose for organ at risk (OAR) in EBBT. The purpose of this study is to analyze patients with superficial bronchial carcinoma treated with definitive EBBT, and to investigate a relationship between late complications and dose for OAR. …”
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  5. 665
    “…In the 25 clinically approved cases that the TPS-QC tool identified as passed, a greater difference could be observed for dosimetric endpoints for organs at risk (OAR) than for planning target volume (PTV), implying that better dose sparing could be achieved in OAR than in PTV. …”
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  6. 666
    “…Subsequent tightening of the treatment planning constraints for these OARs on new vCT-adapted plans did not degrade target coverage and yielded pCT equivalent plans on the vCT. …”
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  7. 667
  8. 668
    “…CONCLUSION: Our results confirmed the abilities of VMAT to provide excellent coverage of target volumes while sparing OAR especially the nervous structures and salivary glands.…”
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  9. 669
    “…However, VMAT and IMRT increased the low dose volume to the contralateral OARs. Although VMAT and IMRT showed mixed results on target coverage and OAR sparing, VMAT decreased MU and delivery time significantly compared with IMRT. …”
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  10. 670
    “…IMRT treatment plans are proven to reduce acute treatment related side effects by optimal sparing of organs at risk (OAR). At the same time, areas that were out of the former 3D fields now receive low radiation doses. …”
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  11. 671
    “…In conclusion, VMAT and IMRT showed significant dosimetric advantages both on target coverage and OAR sparing compared with CRT in the treatment of postoperative cervical cancer. …”
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  12. 672
  13. 673
    “…For both effects (additional imaging dose and dose smearing), plans were analyzed and compared considering target coverage, sparing of organs at risk (OAR) and normal tissue complication probability (NTCP). …”
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  14. 674
    “…CONCLUSION: TVMAT greatly decreases the radiation doses delivered to the OAR with maintained therapeutic efficacy. It is highly recommended for treating breast cancer, especially for difficult cases with left side disease needing nodal irradiation.…”
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  15. 675
    “…Patients with a tumor adjacent to the organ at risk (OAR) or at a high risk of RIP had a lower UTCP and a smaller fractional dose compared with patients with a tumor located distant from the OAR. …”
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  16. 676
    “…The mean and max doses of OARs declined significantly in HT. CONCLUSIONS: For high-grade glioma patients, HT had superior outcomes in terms of PTV coverage and OAR sparing as compared with IMRT/VMAT.…”
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  17. 677
    “…RESULTS: RSABR and BgRT plans resulted in mean ± standard deviation increases in D(max) of 4 ± 11% (P = .21) and 18 ± 15% (P < .001) and reductions in D(OAR) of –20 ± 19% (P <.001) and –10 ± 19% (P = .02) compared with CSABR. …”
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  18. 678
    “…At the same time, PlanIQ consistently produced plans of equal or greater quality to the previously manually planned re‐irradiation across all (20/20) trials (P = 0.05). Proximal OAR exhibited similar to slightly improved maximum point doses from feasibility‐based planning with the largest advantages gained found within the subset of cranial and spine overlap cases, where improvements upward of 10.9% were observed. …”
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  19. 679
    “…On the basis of our previously published work, we simplified the 3-layer GRU-RNN model to a single-layer model and further trained every organ at risk (OAR) separately with an OAR-specific equivalent uniform dose- (EUD-) based loss function. …”
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  20. 680
    “…Conventional KBPs and k‐DCA plans were compared with clinically treated plans per RTOG‐0618 requirements for target conformity, tumor dose heterogeneity, intermediate dose fall‐off and organs‐at‐risk (OAR) sparing. Treatment planning time, treatment delivery efficiency, and accuracy were recorded. …”
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