R. A. Bayliss

ORCID: 0000-0003-1994-1276
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Research Areas
  • Advanced Radiotherapy Techniques
  • Geomagnetism and Paleomagnetism Studies
  • Magnetic confinement fusion research
  • Solar and Space Plasma Dynamics
  • Medical Imaging Techniques and Applications
  • Glioma Diagnosis and Treatment
  • Archaeology and Historical Studies
  • Radiation Therapy and Dosimetry
  • Byzantine Studies and History
  • History of Science and Natural History
  • Lung Cancer Diagnosis and Treatment
  • Brain Metastases and Treatment
  • Water management and technologies
  • Marriage and Sexual Relationships
  • Ancient Mediterranean Archaeology and History
  • Head and Neck Cancer Studies
  • Radiation Dose and Imaging
  • Endometrial and Cervical Cancer Treatments
  • Meningioma and schwannoma management
  • Migration, Aging, and Tourism Studies
  • Prostate Cancer Treatment and Research
  • Colorectal and Anal Carcinomas
  • Management of metastatic bone disease
  • Geophysics and Gravity Measurements
  • Education Systems and Policy

UW Health University Hospital
2011-2024

University of Wisconsin Carbone Cancer Center
2019-2024

University of Wisconsin–Madison
2007-2023

Methodist Hospital
2023

RELX Group (United States)
2022-2023

RELX Group (United Kingdom)
2022

Aspirus
2018

Wentworth Douglass Hospital
2018

University of Pennsylvania
2018

University of Wisconsin Foundation
2012

Magnetic resonance-guided radiation therapy (MRgRT) offers advantages for image guidance radiotherapy treatments as compared to conventional computed tomography (CT)-based modalities. The superior soft tissue contrast of magnetic resonance (MR) enables an improved visualization the gross tumor and adjacent normal tissues in treatment abdominal thoracic malignancies. Online adaptive capabilities, coupled with advanced motion management real-time tracking tumor, directly allow high-precision...

10.7759/cureus.2422 article EN Cureus 2018-04-04

Pennycress ( Thlaspi arvense ) is a promising intermediate oilseed crop, producing oil suitable for conversion to biofuels—including aviation fuels. While domestication efforts are ongoing, deeper understanding of the genetic architecture traits crucial informing future breeding efforts. Here, we conducted largest genomic and phenotypic survey pennycress date, analyzing 739 accessions collected across four continents. Leveraging whole-genome sequencing field-collected phenotypes,...

10.1101/2025.03.21.644658 preprint EN cc-by bioRxiv (Cold Spring Harbor Laboratory) 2025-03-25

The role of turbulence in current generation and self-excitation magnetic fields has been studied the geometry a mechanically driven, spherical dynamo experiment, using three-dimensional numerical computation. A simple impeller model drives flow that can generate growing field, depending on Reynolds number Rm=micro0sigmaVa fluid Re=Vanu flow. For Re<420, is laminar transition governed by threshold Rmcrit=100, above which eigenmode observed primarily dipole field transverse to axis symmetry...

10.1103/physreve.75.026303 article EN Physical Review E 2007-02-05

Purpose: Small field dosimetry is prone to uncertainties due the lack of electronic equilibrium and use correct detector size relative measured. It also exhibits higher sensitivity setup errors as well large variation in output with shape. Radiochromic film an attractive method for reference small fields its ability provide 2D dose measurements while having minimal impact on distribution. Gafchromic EBT2 has a range up 40 Gy; therefore, it could potentially be useful high spatial resolution....

10.1118/1.3597834 article EN Medical Physics 2011-06-22

The management of a pregnant patient in radiation oncology is an infrequent event requiring careful consideration by both the physician and physicist. aim this manuscript was to highlight treatment planning techniques detail measurements fetal dose for recently brain cancer. A 27-year-old woman treated during gestational weeks 19-25 resected grade 3 astrocytoma 50.4 Gy 28 fractions, followed additional 9 boost five fractions. Four potential plans were developed patient: 6 MV 3D-conformal...

10.1002/acm2.12262 article EN cc-by Journal of Applied Clinical Medical Physics 2018-07-30

Patients with grade 2 glioma exhibit highly variable survival. Re-irradiation for recurrent disease has limited mature clinical data. We report treatment results of pulsed reduced-dose rate (PRDR) radiation patients glioma.

10.1093/noajnl/vdae073 article EN cc-by-nc Neuro-Oncology Advances 2024-01-01

Three attempts were made in Parliament to create a Consumers' Council between 1929 and 1939. The proposed was have powers investigate recommend price fixing, although all three bills unsuccessful, some of the issues discussed are still contemporary interest.

10.1111/j.1470-6431.1980.tb00366.x article EN Journal Of Consumer Studies and Home Economics 1980-06-01

A Consumers' Council was established in the closing months of Great War. Its work seems to have been overlooked, but it an important body with achievements its credit and a notable membership. The deserves new look decade when National Consumer has created.

10.1111/j.1470-6431.1979.tb00342.x article EN Journal Of Consumer Studies and Home Economics 1979-03-01

Purpose: Helical tomotherapy is a complex delivery technique, integrating CT image guidance and intensity modulated radiotherapy in single system. The integration of the detector ring on gantry not only allows patient position verification but also often used to perform various QA procedures. This convenience lacks rigor machine‐independent process. Methods: In this article, Si strip detector, known as Dose Magnifying Glass (DMG), was measurements multileaf collimator alignment, leaf open...

10.1118/1.3566067 article EN Medical Physics 2011-03-30

Whole pelvic radiotherapy with concurrent chemotherapy is the standard of care for locally advanced cervical carcinoma. Published literature reports that bone marrow (BM) dosimetric parameters V10 > 90% and V20 80% are associated higher rates hematologic toxicities using this approach. Here, we investigate ability Tomotherapy based intensity modulated radiation therapy (IMRT) to reduce dose BM while evaluating distribution critical structures planning target volume (PTV) coverage. Ten...

10.7785/tcrt.2012.500300 article EN Technology in Cancer Research & Treatment 2012-09-12

Purpose: Magnetic resonance imaging–guided radiation therapy has entered clinical practice at several major treatment centers. Treatment of early-stage non-small cell lung cancer with stereotactic body is one potential application this modality, as some form respiratory motion management important to address. We hypothesize that magnetic tri-cobalt-60 can be used generate clinically acceptable plans. Here, we report on a dosimetric comparison between plans and internal target volume–based...

10.1177/1533034617691407 article EN cc-by-nc Technology in Cancer Research & Treatment 2017-02-07

A recent field safety notice from TomoTherapy detailed the underdosing of small, off-axis targets when receiving high doses per fraction. This is due to angular undersampling in dose calculation gantry angles. study evaluates a correction method reduce underdosing, be implemented current version (v4.1) treatment planning software.The method, termed "Super Sampling" involved tripling number angles which calculated during optimization and calculation. Radiochromic film was used measure small...

10.1118/1.4736811 article EN Medical Physics 2012-07-19

Coaxial helicity injection in the HIT-II [A. J. Redd et al., Phys. Plasmas 9, 2006 (2002)] spherical torus is modeled with time-dependent resistive magnetohydrodynamics computations run to steady state for conditions without strong relaxation. Laboratory and computed results on injector current plasma agree reasonably well as toroidal magnetic field flux are scaled. The scalings consistent a dimensional estimate from Grad-Shafranov equation that provides new perspective previously published...

10.1063/1.3626563 article EN Physics of Plasmas 2011-09-01

ABSTRACT Background We sought to validate the consensus recommendation and assess dosimetric significance of selective omission nodal level V from intensity‐modulated radiotherapy (IMRT) clinical target volume (CTV) for oropharyngeal cancer. Methods IMRT plans outcomes 112 patients with cancer (nodal classification N0–N2b) were analyzed coverage ipsilateral contralateral V. Additionally, new generated in 6 randomly selected its impact. Results With median follow‐up 3.4 years, there no...

10.1002/hed.23924 article EN Head & Neck 2014-12-01

Recurrent intracranial metastases after whole-brain irradiation pose a clinical challenge owing to the escalating morbidity associated with their treatment. Although stereotactic radiosurgery is increasingly being used, there are still situations in which reirradiation (ReRT) continues be appropriate. Here, we report our experience using pulsed reduced dose rate radiation therapy (PRDR), method that delivers at slower of 0.067 Gy/min potentially increase sublethal damage repair and decrease...

10.1016/j.adro.2020.06.021 article EN cc-by-nc-nd Advances in Radiation Oncology 2020-07-08

An abstract is not available for this content so a preview has been provided. As you have access to content, full PDF via the 'Save PDF' action button.

10.1017/s0025727300047293 article EN Medical History 1987-10-01

The recently reported FLAME trial demonstrated a biochemical disease-free survival benefit to using focal intraprostatic boost multiparametric magnetic resonance imaging (mpMRI)-identified lesions in men with localized prostate cancer treated definitive radiation therapy. Prostate-specific membrane antigen (PSMA)-directed positron emission tomography (PET) may identify additional areas of disease. In this work, we investigated both PSMA PET and mpMRI planning boosts stereotactic body therapy...

10.1016/j.adro.2023.101241 article EN cc-by-nc-nd Advances in Radiation Oncology 2023-04-09
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