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Mostrando 581 - 600 Resultados de 2,457 Para Buscar '"Oar"', tiempo de consulta: 0.20s Limitar resultados
  1. 581
    “…The differences in planning target volume (PTV) dose distribution, organ at risk (OAR) dose, and dose to the PG and its ducts were compared between the two groups. …”
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    Parotid Gland Stem Cell Preservation during Intensity-Modulated Radiotherapy for Nasopharyngeal Carcinoma: Dosimetric Analysis and Feasibility
  2. 582
    “…Of these miRNAs, 22 demonstrated a differential expression pattern, especially between the estrous cycle and early pregnancy, and targeted 521 genes. Two miRNAs (oar-miR-218a and oar-miR-1185-3p) were confirmed using RT-qPCR in the ovine plasma samples. …”
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    Online Artículo Texto
    Circulating miRNAs in maternal plasma as potential biomarkers of early pregnancy in sheep
  3. 583
    “…Delineation time and –confidence were registered for targets and OAR. Impact of contour adaptation on treatment plan quality was investigated. …”
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    Online Artículo Texto
    Online adaptive MR-guided radiotherapy: Conformity of contour adaptation for prostate cancer, rectal cancer and lymph node oligometastases among radiation therapists and radiation oncologists
  4. 584
    “…Accurate organ-at-risk (OAR) segmentation is critical to reduce radiotherapy complications. …”
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    Online Artículo Texto
    Comprehensive and clinically accurate head and neck cancer organs-at-risk delineation on a multi-institutional study
  5. 585
    “…Finally, the ceRNA relationship network with oar-miR-27a_R-1 and oar-miR-29a as the core was validated, suggesting possible involvement of these interactions in tail fat development. …”
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    Online Artículo Texto
    MicroRNA and circular RNA profiling in the deposited fat tissue of Sunite sheep
  6. 586
    “…We conducted radiation plans with DIBH and free-breath CT and evaluated organ at risk (OAR) and target doses according to two different plans. …”
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    Online Artículo Texto
    Development of deep-inspiration breath-hold system that monitors the position of the chest wall using infrared rangefinder
  7. 587
    “…Margin reduction decreased PTV-OAR overlap; for example, the proportion of optic chiasm overlapped by the PTV was reduced up to 23.5 % by margin reduction from 4 mm to 3 mm. …”
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    Online Artículo Texto
    Empirical planning target volume modeling for high precision MRI guided intracranial radiotherapy
  8. 588
    “…Before implementation of TG-263 guidelines in each institution, there was variability in OAR nomenclature across institutions and structures. …”
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    Online Artículo Texto
    Head and Neck Radiation Therapy Patterns of Practice Variability Identified as a Challenge to Real-World Big Data: Results From the Learning from Analysis of Multicentre Big Data Aggregation (LAMBDA) Consortium
  9. 589
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    Online Artículo Texto
    Surgery-first approach with 3D customized passive self-ligating brackets and 3D surgical planning: Case report
  10. 590
    “…We identified 126 alleles in 12 microsatellite markers (McM042, INRA006, McM527, ETH152, CSRD247, OarFCB20, INRA172, INRA063, MAF065, MAF214, INRA005, INRA023). …”
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    Online Artículo Texto
    A genogeographic study of the Kyrgyz mountain merino via microsatellite markers
  11. 591
    “…Dose to the planning target volume (PTV) 1–5 and organ at risk (OAR) were analyzed in this study for the efficiency comparison of RA and IMRT. …”
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    Online Artículo Texto
    Application of a Comprehensive Treatment Planning Test for Credentialing Intensity-Modulated Radiotherapy and RapidArc in a TrueBeam Linear Accelerator Setup
  12. 592
    “…Increasing ELS had no effect on critical organ‐at‐risk (OAR) doses or the integral dose, while increasing SS resulted in slightly higher integral and selected OAR doses. …”
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    Online Artículo Texto
    Effect of the initial energy layer and spot placement parameters on IMPT delivery efficiency and plan quality
  13. 593
    “…BACKGROUND/PURPOSE: Radiotherapy (RT) volumes for anal cancer are large and of moderate complexity when organs at risk (OAR) such as testis, small bowel and bladder are at least partially to be shielded. …”
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    A fast radiotherapy paradigm for anal cancer with volumetric modulated arc therapy (VMAT)
  14. 594
    “…DMPO plans were compared to an IMRT variant having only one segment per angle ("2-Step Fast"). 2-Step Fast is based on a geometrical analysis of the topology of the planning target volume (PTV) and the organs at risk (OAR). A prostate/rectum case, spine metastasis/spinal cord, breast/lung and an artificial PTV/OAR combination of the ESTRO-Quasimodo phantom were used for the study. …”
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    Online Artículo Texto
    Fast IMRT by increasing the beam number and reducing the number of segments
  15. 595
    “…Using 20% uncertainty of physical dose for OAR and 10% for HR CTV, the effects on total treatment dose for a 4 fraction HDR schedule at clinically relevant dose levels were found to be 4–8 Gy EQD2 for OAR and 3 Gy EQD2 for HR CTV. …”
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    Online Artículo Texto
    A multicentre comparison of the dosimetric impact of inter- and intra-fractional anatomical variations in fractionated cervix cancer brachytherapy
  16. 596
    “…Dose values of PTVs and OAR were analysed. The length of the treatment field, the N + and N- volumes, and treatment duration were reported. …”
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    Online Artículo Texto
    Dose to organs at risk in the upper abdomen in patients treated with extended fields by helical tomotherapy: a dosimetric and clinical preliminary study
  17. 597
    “…CONCLUSIONS: This present study has illustrated that RMPBT can improve OAR sparing while giving equivalent coverage to target volumes relative to traditional PBT methods while avoiding the increased RBE at the end of the beam. …”
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    Online Artículo Texto
    Range modulation in proton therapy planning: a simple method for mitigating effects of increased relative biological effectiveness at the end-of-range of clinical proton beams
  18. 598
    por Kalbfleisch, Ted, Heaton, Michael P
    Publicado 2014
    “…In this work we mapped 35 Gb of next generation sequence data of a Katahdin sheep to its own species’ reference genome ( Ovis aries Oar3.1) and to that of a species that diverged 15 to 30 million years ago ( Bos taurus UMD3.1).  …”
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    Online Artículo Texto
    Mapping whole genome shotgun sequence and variant calling in mammalian species without their reference genomes
  19. 599
    “…The VMAT plans provided better conformity to the target volume, improved dose to the OAR, and required fewer MUs. Treatments using VMAT-1A were significantly faster than both IMRT and VMAT-2A. …”
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    A retrospective planning analysis comparing intensity modulated radiation therapy (IMRT) to volumetric modulated arc therapy (VMAT) using two optimization algorithms for the treatment of early-stage prostate cancer
  20. 600
    “…CONCLUSIONS: For breast patients, imaging dose to OAR depends on imaging modality and treated breast size. …”
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    Online Artículo Texto
    Imaging dose in breast radiotherapy: does breast size affect the dose to the organs at risk and the risk of secondary cancer to the contralateral breast?
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