Results 21 to 30 of about 99 (99)

Evaluation of dosimetric and spatial accuracy of a virtual cone technique for radiosurgery using linac‐integrated CBCT‐based polymer gel dosimetry

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study evaluates the dosimetric and geometric precision of a virtual cone technique using CBCT‐based polymer gel dosimetry, enabling radiation delivery, and imaging readout within an identical spatial coordinate system. Methods We created a C# script for a virtual cone technique that generates a treatment plan with 10 gantry arcs ...
Tenzin Kunkyab   +6 more
wiley   +1 more source

Combining CD34+ stem cell selection with prophylactic pathogen and leukemia directed T‐cell immunotherapy to simultaneously reduce graft versus host disease, infection, and leukemia recurrence after allogeneic stem cell transplant

open access: yesAmerican Journal of Hematology, Volume 98, Issue 1, Page 159-165, January 2023., 2023
Donor stem cell product undergoes CD34 stem cell selection. CD34 positive stem cells are used for transplantation. Pathogen‐ and leukemia‐specific T‐cells are manufactured from CD34 negative fraction and infused prophylactically 21 days after transplant.
David J. Gottlieb   +12 more
wiley   +1 more source

Surface dose analysis and dosimetric comparison of Halcyon versus Truebeam in breast cancer radiotherapy: An OSL dosimetry study

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Breast cancer is a neoplastic disease with high prevalence among women. Radiotherapy is one of the principal treatment modalities for this disease, but it poses significant challenges. This study aimed to compare and evaluate the technical and dosimetric performance of conventional C‐arm linac systems and a new design, Halcyon, in the ...
Mustafa Çağlar   +8 more
wiley   +1 more source

Patients with treated indolent lymphomas immunized with BNT162b2 have reduced anti‐spike neutralizing IgG to SARS‐CoV‐2 variants, but preserved antigen‐specific T cell responses

open access: yesAmerican Journal of Hematology, Volume 98, Issue 1, Page 131-139, January 2023., 2023
Abstract Patients with indolent lymphoma undertaking recurrent or continuous B cell suppression are at risk of severe COVID‐19. Patients and healthy controls (HC; N = 13) received two doses of BNT162b2: follicular lymphoma (FL; N = 35) who were treatment naïve (TN; N = 11) or received immunochemotherapy (ICT; N = 23) and Waldenström's macroglobulinemia
Brendan Beaton   +20 more
wiley   +1 more source

Evaluation of internal target volume of abdominal tumors using cine‐MRI

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Introduction The detailed anatomy visualization with magnetic resonance (MR)‐guided radiotherapy is particularly attractive for abdominal treatments, but patient respiratory motion can compromise image quality. The “navigator technique” produces high‐quality 3D images, triggered by diaphragm displacement, in exhale phase only.
Jessica Lye   +8 more
wiley   +1 more source

Sex differences in lymphoma incidence and mortality by subtype: A population‐based study

open access: yesAmerican Journal of Hematology, Volume 98, Issue 1, Page 23-30, January 2023., 2023
A higher incidence and a trend toward higher mortality in men for most lymphoma subtypes is seen in this Swedish population‐based cohort study on adults (age 18‐99) diagnosed with lymphoma 2000‐2019. Male‐to‐female incidence rate ratio (IRR) by male‐to‐female excess mortality ratio (EMR), both adjusted for age and year of diagnosis, by lymphoma subtype.
Cecilia Radkiewicz   +9 more
wiley   +1 more source

Using deep learning generated CBCT contours for online dose assessment of prostate SABR treatments

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Prostate Stereotactic Ablative Body Radiotherapy (SABR) is an ultra‐hypofractionated treatment where small setup errors can lead to higher doses to organs at risk (OARs). Although bowel and bladder preparation protocols reduce inter‐fraction variability, inconsistent patient adherence still results in OAR variability.
Conor Sinclair Smith   +8 more
wiley   +1 more source

Evaluation of the characteristics of workers injured on the job requiring hospitalization, and employer compliance with OSHA's reporting requirement for these work‐related hospitalizations

open access: yesAmerican Journal of Industrial Medicine, Volume 66, Issue 2, Page 109-121, February 2023., 2023
Abstract Background The Occupational Safety and Health Administration (OSHA) implemented a new standard in 2014 requiring employers to report nearly all work‐related inpatient hospitalizations within 24 h of the event. We examined the characteristics of the injured workers who were reported and the compliance of Michigan employers with the regulation ...
Mary Jo Reilly   +2 more
wiley   +1 more source

Improving dose delivery in non‐coplanar cranial SRS: Stereoscopic x‐ray‐guided mitigation of table walkout errors

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Purpose Linear accelerator (LINAC)‐based single‐isocenter multi‐target (SIMT) treatment has streamlined the cranial stereotactic radiosurgery (SRS) workflow. Though efficient, SIMT delivery adds additional challenges that should be considered, including increased sensitivity to rotational errors for off‐isocenter targets.
Yohan A. Walter   +4 more
wiley   +1 more source

Accounting for TLD response to CBCT protocols in external beam radiotherapy dose monitoring

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose LiF thermoluminescent dosimeters (TLDs) are commonly used in radiation therapy to verify the delivered dose. Examples include dose verification for complicated treatment setups or cardiovascular implantable electronic devices (CIEDs). TLDs may be present for both the pre‐treatment imaging kilovoltage (kV) beam and the megavoltage (MV ...
Andrew J. White   +5 more
wiley   +1 more source

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