PURPOSE To reduce the potential of late toxicity (tissue necrosis and cognitive function loss) from brain radiotherapy, we studied a novel planning technique for MLC-equipped linear accelerators (LINACS) that reduces the high doses delivered outside the PTV, enhancing radiation dose conformity. METHODS The feasibility of improving dose conformity by using variable source-to-tumor distances wa...

The Radiation Therapy Oncology Group (RTOG) 0813 protocol requires the use of dose calculation algorithms with tissue heterogeneity corrections to compute dose on stereotactic body radiation therapy (SBRT) non-small cell lung cancer (NSCLC) plans. A new photon dose calculation algorithm called Acuros XB (AXB) has recently been implemented in the Eclipse treatment planning system (TPS). The main...

Vascular access remains one of the most challenging aspects renal replacement therapy. New European Renal Best Practice (ERBP) Clinical practice guideline on peri- and postoperative care arteriovenous fistulas grafts for haemodialysis was published in 2019 (https://doi.org/10.1093/ndt/gfz072). During Advisory Board meeting ERBP, official guidance providing body ERA-EDTA, it decided that ERBP wi...

The calibration of ion chambers in high-energy electron beams in terms of absorbed dose to water at the National Physical Laboratory requires knowledge of the ratio of perturbation factors in graphite and water phantoms. During a review of data required for the NPL calibration procedure an empirical model was developed to calculate the perturbation due to the rear wall, pwall, of a well-guarded...

Climate science has confirmed the alteration of hydrological cycle attributed to global warming. This warming tendency affects monsoon precipitation in Pakistan with an unprecedented intensity, causing severe flooding. Therefore, it is inevitable observe recent spring and summer changes extreme throughout Pakistan. The present study examined 8 indices past 50-year period (1971–2020) (stretched ...

The purpose of this article is to evaluate the accuracy optical coherence tomography (OCT) measurement choroidal thickness in healthy eyes using a deep-learning method with Mask R-CNN model. Thirty EDI-OCT thirty patients were enrolled. A mask region-based convolutional neural network (Mask R-CNN) model composed deep residual (ResNet) and feature pyramid networks (FPNs) standard convolution ful...

The Cyclone Global Navigation Satellite System (CYGNSS) consists of a constellation of eight microsatellites that provide observations of surface wind speed in all precipitating conditions. A method for estimating tropical cyclone (TC) metrics—maximum surface wind speed VMAX, radius of maximum surface wind speed RMAX, and wind radii (R64, R50, and R34)—from CYGNSS observations is developed and ...