Results 111 to 120 of about 43,614 (295)

Real‐time radiation beam imaging on an MR linear accelerator using quantitative T1 mapping

open access: yesMedical Physics, EarlyView.
Abstract Background Direct three‐dimensional imaging of radiation beams could enable more accurate radiation dosimetry. It has been previously reported that changes in T1‐weighted magnetic resonance imaging (MRI) intensity could be observed during radiation due to radiochemical oxygen depletion.
Brandon T. T. Tran   +5 more
wiley   +1 more source

Field output correction factors using a scintillation detector

open access: yesMedical Physics, EarlyView.
Abstract Background As small radiation fields play an ever‐increasing role in radiation therapy, accurate dosimetry of these fields becomes critical to ensure high quality dose calculation and treatment optimization. Despite the availability of several small volume dose detectors, small field dosimetry remains challenging.
Luc Gingras   +10 more
wiley   +1 more source

Characterization and inter‐scanner reproducibility of geometric distortion on a small footprint, high‐performance, head‐specific 0.5 T scanner

open access: yesMedical Physics, EarlyView.
Abstract Background Magnetic resonance imaging (MRI) offers superior soft tissue contrast and essential imaging capabilities for modern medicine. MRI is increasingly being used in applications that require a high degree of spatial fidelity; however, distortions are a well‐known limitation of the modality. The mid‐field (0.3 T ≤ B0 < 1 T) has advantages
Curtis N. Wiens   +2 more
wiley   +1 more source

Evaluating Proton Versus Photon Therapy: A Call for Nuanced Decision‐Making

open access: yes
Journal of Medical Radiation Sciences, EarlyView.
Peter Gorayski, Hien Le, Frank Saran
wiley   +1 more source

Small elongated MLC fields: Novel equivalent square field formula and output factors

open access: yesMedical Physics, EarlyView.
Abstract Purpose This study evaluates different approaches for estimating the equivalent square field size (ESF) to derive the Output Correction Factors (OCF) according to the IAEA TRS‐483 protocol, for small fields, focusing on rectangular fields generated by MLCs.
Antonella Fogliata   +7 more
wiley   +1 more source

Comparison of WBRT alone, SRS alone, and their combination in the treatment of one or more brain metastases: Review and meta-analysis

open access: yesTumor Biology, 2017
Whole brain radiotherapy has been a standard treatment of brain metastases. Stereotactic radiosurgery provides more focal and aggressive radiation and normal tissue sparing but worse local and distant control.
Muhammad Khan   +7 more
doaj   +1 more source

Charged-particle Radiosurgery for Intracranial Vascular Malformations [PDF]

open access: green, 1992
Jacob I. Fabrikant   +7 more
openalex   +1 more source

Radiosurgery for palliation of base of skull recurrences from head and neck cancers [PDF]

open access: bronze, 1992
Irving Kaplan   +4 more
openalex   +1 more source

Radiosurgery And Fractionated Radiosurgery For Recurrent Glioblastoma [PDF]

open access: yesInternational Journal of Radiation Oncology*Biology*Physics, 2020
L. Larrea   +7 more
openaire   +2 more sources

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