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Mostrando 41 - 60 Resultados de 89 Para Buscar '"Novalis"', tiempo de consulta: 0.43s Limitar resultados
  1. 41
    “…PURPOSE: To evaluate the feasibility, efficacy, and side effects of dose escalation in hypofractionated stereotactic radiotherapy (hfSRT) for intrapulmonary tumors with the Novalis™ system (BrainLAB AG, Heimstetten, Germany). …”
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    Hypofractionated Stereotactic Radiotherapy for Primary and Secondary Intrapulmonary Tumors: First Results of a Phase I/II Study
  2. 42
    “…METHODS: Between 2000 and 2007, 33 patients with a pathological diagnosis of glioblastoma received SRS with the Novalis(® )Shaped Beam Radiosurgery system. Eighteen patients (54%) underwent salvage SRS for recurrence while 15 (45%) patients received upfront SRS following standard fractionated RT for newly diagnosed glioblastoma. …”
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    Stereotactic radiosurgery for glioblastoma: retrospective analysis
  3. 43
    “…The patient received radiosurgical treatment for brain metastasis; after this procedure a new target was defined on the floor of the third ventricle, in the midpoint between the mamillary bodies and the infundibular recess where we delivered 100 Gy delivered by an isocentric multiple noncoplanar arcs technique, with a 6 MV Novalis(®) dedicated LINAC. A series of 21 arcs was arranged with a radiation field generated by a 4 mm circular collimator. …”
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    Radiosurgical third ventriculostomy: Technical note
  4. 44
    “…The plans were delivered with Novalis Tx linear accelerator with 6 MV X-rays for both the phantoms separately. …”
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    Investigation on the effect of sharp phantom edges on point dose measurement during patient-specific dosimetry with Rapid Arc
  5. 45
    “…A 2.4 × 2.4 cm(2) square area of a T25 flask was irradiated by a Varian Novalis accelerator delivering 6 MV photons. Cell survival inside the irradiation field, in the dose gradient zone and in the peripheral zone, was determined using a clonogenic assay for different radiation doses at the isocenter. …”
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    Nonlinearity in MCF7 Cell Survival Following Exposure to Modulated 6 MV Radiation Fields: Focus on the Dose Gradient Zone
  6. 46
    “…Linearity, uniformity, and repeatability of the system. The Novalis system uses a daily isocenter calibration procedure to ensure consistency of isocenters between the IGRT and the LINAC systems. …”
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    Clinical assessment and characterization of a dual‐tube kilovoltage X‐ray localization system in the radiotherapy treatment room
  7. 47
    “…We investigated 76 patients with spinal tumors who received SBRT using Novalis Tx at our institution between January 2013 and September 2020. …”
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    Evaluation of the setup discrepancy between 6D ExacTrac and cone beam computed tomography in spine stereotactic body radiation therapy
  8. 48
    “…The evaluation of these dosimetric systems was performed for RapidArc and IMRT deliveries using a Varian NovalisTX linear accelerator. The plans were generated using the Varian Eclipse treatment planning system. …”
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    Comparison of four commercial devices for RapidArc and sliding window IMRT QA
  9. 49
    “…The EPID used in this study was the aSi1000 Varian on a Novalis TX linac equipped with high‐definition MLC. …”
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    Anatomy‐based, patient‐specific VMAT QA using EPID or MLC log files
  10. 50
    “…METHODS: Patients were treated on Novalis LINAC. Three dose schedules were used depending on the PTV-size. …”
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    Impact of PTV margin reduction (2 mm to 0 mm) on pseudoprogression in stereotactic radiotherapy of solitary brain metastases
  11. 51
    “…METHODS: The study includes 29 patients who underwent IMRT on a Novalis-Tx linear accelerator (Varian Medical System and BrainLAB) between June 2019 and March 2021. …”
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    Clinical performance of FractionLab in patient-specific quality assurance for intensity-modulated radiotherapy: a retrospective study
  12. 52
    “…The coordinates of a virtual prostate in BA and a real prostate were obtained by use of the ExaxTrac/NovalisBody system, and the distance between them was calculated as the spatial difference. …”
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    Interfraction Prostate Movement in Bone Alignment After Rectal Enema for Radiotherapy
  13. 53
    “…To this end, 1 cm(3) of DA was irradiated with a 6-MV X-ray beam (100 MU) in a field size of 10 × 10 cm(2) using a Novalis TX linear accelerator. Ethylene vinyl acetate copolymer, polyolefin elastomer, and polyethylene terephthalate (PET) were selected as DD materials. …”
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    A study on a dental device for the prevention of mucosal dose enhancement caused by backscatter radiation from dental alloy during external beam radiotherapy
  14. 54
    “…Given that the Clinac 21EX shares head geometry with Varian's iX, Trilogy, and Novalis TX accelerators, our findings should also be applicable to these machines. …”
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    Comparison of measured Varian Clinac 21EX and TrueBeam accelerator electron field characteristics
  15. 55
    “…SRS was performed with a True Beam STX Novalis Radiosurgery LINAC (Varian Medical Systems). …”
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    Local control and overall survival after frameless radiosurgery: A single center experience
  16. 56
    “…The irradiation was performed with a Novalis® linear accelerator using a 6-MV photon beam. …”
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    Detector-specific correction factors in radiosurgery beams and their impact on dose distribution calculations
  17. 57
    “…A commercially available linear accelerator (Novalis®, BrainLab) device was used to deliver 90 Gy to the root-entry zone with a 4- or 5-mm collimator. …”
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    Immediate Pain Relief Elicited After Radiosurgery for Classical and Symptomatic Trigeminal Neuralgia
  18. 58
    “…Plans were chosen from those that had been treated using the Elekta VersaHD or a Novalis Tx linac. All of the treated volumetric-modulated arc therapy plans used 6 MV or 10 MV photon beams. …”
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    Dose Calculation Comparisons between Three Modern Treatment Planning Systems
  19. 59
    “…MATERIALS AND METHODS: The image-guided Brainlab Novalis stereotactic system was used. Fourteen patients with 23 extra-cranial metastatic RCC lesions (orbits, head and neck, lung, mediastinum, sternum, clavicle, scapula, humerus, rib, spine and abdominal wall) and two patients with biopsy-proven primary RCC (not surgical candidates) were treated with SBRT (24-40 Gy in 3-6 fractions over 1-2 weeks). …”
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    The treatment of primary and metastatic renal cell carcinoma (RCC) with image-guided stereotactic body radiation therapy (SBRT)
  20. 60
    “…PATIENTS AND METHODS: A total of 73 NSA patients (39 men/34 women) with a median age of 62 years were prospectively included in a treatment protocol of SRS [planning target volume (PTV) < 4 ccm, > 2 mm to optic pathways = low risk] or SRT (PTV ≥ 4 ccm, ≤ 2 mm to optic pathways = high risk) in two Novalis® centers. Mean tumor volume was 7.02 ccm (range 0.58–57.29 ccm). …”
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    Risk-adapted single or fractionated stereotactic high-precision radiotherapy in a pooled series of nonfunctioning pituitary adenomas: High local control and low toxicity
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