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Towards faster quality control of personal radiation protective equipment using CT scout or a dedicated biplanar radiography device.
Radiat Prot Dosimetry
January 2025
Medical Physics, Ghent University, Proeftuinstraat 86, 9000 Ghent, Belgium.
Quality control (QC) of personal radiation protective equipment (PRPE) is essential to detect tears and holes in the attenuating layers. Routinely, this QC is performed using fluoroscopy on a conventional X-ray table. However, such a QC procedure is laborious and time consuming.
View Article and Find Full Text PDFSeeing fast and slow: the influence of music-induced affective states and individual sensory sensitivity on visual processing speed.
Cogn Emot
December 2024
Psychology Program, Division of Science, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates.
There is a speed-accuracy trade-off in perception. The ability to quickly extract sensory information is critical for survival, while extended processing can improve our accuracy. It has been suggested that emotions can change our style of processing, but their influence on processing speed is not yet clear.
View Article and Find Full Text PDFAn efficient joint model for high dimensional longitudinal and survival data via generic association features.
Biometrics
October 2024
INSERM, Centre de recherche des Cordeliers, Univ. Sorbonne, Univ. Paris Cité, Paris F-75006, France.
This paper introduces a prognostic method called FLASH that addresses the problem of joint modeling of longitudinal data and censored durations when a large number of both longitudinal and time-independent features are available. In the literature, standard joint models are either of the shared random effect or joint latent class type. Combining ideas from both worlds and using appropriate regularization techniques, we define a new model with the ability to automatically identify significant prognostic longitudinal features in a high-dimensional context, which is of increasing importance in many areas such as personalized medicine or churn prediction.
View Article and Find Full Text PDFManifestation of the FLASH effect in proton irradiation of embryos.
Int J Radiat Biol
January 2025
Institute for Nuclear Research, Russian Academy of Sciences (INR RAS), Troitsk, Russia.
Purpose: In order to study the FLASH effect using live models, this work compared proton-induced damage to embryos (nine days after fertilization) and one-day-old chicks (18 days after fertilization) from irradiated at different dose rates eggs of Japanese quail ().
Materials And Methods: Eggs were irradiated with protons in different modes depending on the dose rate: in a conventional mode (<1 Gy/s, CONV), in a flash mode (∼100 Gy/s, FLASH) and in a single-pulse flash mode (∼10 Gy/s SPLASH).
Results: By the criteria of body weight and length, as well as the number of erythrocytes with micronuclei in nine-day-old embryos from eggs irradiated in the spread-out Bragg peak (SOBP) (8.
Development of patient-specific pre-treatment verification procedure for FLASH proton therapy based on time resolved film dosimetry.
Med Phys
November 2024
HollandPTC, Delft, The Netherlands.
Background: Pre-clinical studies demonstrate that delivering a high dose at a high dose rate result in less toxicity while maintaining tumor control, known as the FLASH effect. In proton therapy, clinical trials have started using 250 MeV transmission beams and more trials are foreseen. A novel aspect of FLASH treatments, compared to conventional radiotherapy, is the importance of dose rate next to dose and geometry.
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