Results 301 to 310 of about 3,856,896 (414)

An isodose‐constrained automatic treatment planning strategy using a multicriteria predicted dose rating

Medical Physics, EarlyView.
Abstract Background Previous knowledge‐based planning studies have demonstrated the feasibility of predicting three‐dimensional photon dose distributions and subsequently generating treatment plans. The steepness of dose fall‐off represents a critical metric for clinical plan evaluation; however, dose fall‐off similarity is frequently overlooked in ...
Zihan Sun, Jiazhou Wang, Weigang Hu, Yongheng Yan, Yuanhua Chen, Guorong Yao, Zhongjie Lu, Senxiang Yan   +7 more
wiley   +1 more source

Non-fatal overdoses and related risk factors among people who inject drugs in St. Petersburg, Russia and Kohtla-Järve, Estonia [PDF]

, 2015
Anneli Uusküla, Mait Raag, Sigrid Vorobjov, Kristi Rüütel, Alexandra Lyubimova, Olga Levina, Robert Heimer   +6 more
openalex   +1 more source

Instantaneous in vivo distal edge verification in intensity‐modulated proton therapy by means of PET imaging

Medical Physics, EarlyView.
Abstract Background Intensity‐modulated proton therapy (IMPT) holds promise for improving outcomes in head‐and‐neck cancer (HNC) patients by enhancing organ‐at‐risk (OAR) sparing. A key challenge in IMPT is ensuring an accurate dose delivery at the distal edge of the tumor, where the steep dose gradients make treatment precision highly sensitive to ...
Brian Zapien‐Campos, Zahra Ahmadi Ganjeh, Giuliano Perotti‐Bernardini, Jeffrey Free, Stefan Both, Peter Dendooven   +5 more
wiley   +1 more source

Scenario‐free robust optimization algorithm for IMRT and IMPT treatment planning

Medical Physics, EarlyView.
Abstract Background Robust treatment planning algorithms for intensity modulated proton therapy (IMPT) and intensity modulated radiation therapy (IMRT) allow for uncertainty reduction in the delivered dose distributions through explicit inclusion of error scenarios.
Remo Cristoforetti, Jennifer Josephine Hardt, Niklas Wahl   +2 more
wiley   +1 more source

Living Alone and Drug Overdose Deaths in the US.

JAMA Psychiatry, 2023
Olfson M, Cosgrove CM, Wall MM, Blanco C.   +3 more
europepmc   +1 more source

The role of depression and social support in non-fatal drug overdose among a cohort of injection drug users in a Canadian setting

, 2013
Roman Pabayo, Carmela Alcántara, Ichiro Kawachi, Evan Wood, Thomas Kerr   +4 more
openalex   +2 more sources

Actor critic with experience replay‐based automatic treatment planning for prostate cancer intensity modulated radiotherapy

Medical Physics, EarlyView.
Abstract Background Achieving highly efficient treatment planning in intensity‐modulated radiotherapy (IMRT) is challenging due to the complex interactions between radiation beams and the human body. The introduction of artificial intelligence (AI) has automated treatment planning, significantly improving efficiency.
Md Mainul Abrar, Parvat Sapkota, Damon Sprouts, Xun Jia, Yujie Chi   +4 more
wiley   +1 more source

Intratracheal Administration of Nanoplastics With Varying Surface Hydrophobicity Results in Coarsely Vacuolated Alveolar Macrophages, Transient Respiratory Inflammation, and Mild Collagen Deposition

Nano Select, EarlyView.
Nanoplastic hydrophobicity drives adverse effects in the lung. Single intratracheal administration of poly(vinyl acetate‐co‐alcohol) nanoplastics with varying surface hydrophobicity shows that the more hydrophobic nanoplastics increase prevalence of coarsely vacuolated alveolar macrophages, induce transient respiratory inflammation and mild collagen ...
Anna Babin Morgan, Yanira Riffo‐Vasquez, Aateka Bodhaniya, Stuart A. Jones, Ben Forbes, Kavitha Sunassee, Rafael T. M. de Rosales, Stephanie Wright, Clive Page, Lea Ann Dailey   +9 more
wiley   +1 more source

Engagement in a National Naloxone Programme among people who inject drugs [PDF]

, 2016
Bird, Sheila M., Goldberg, David, Hutchinson, Sharon J., McAuley, Andrew, Munro, Alison, Taylor, Avril   +5 more
core   +2 more sources

Tracking Drug Overdose Trends in Ohio using ED Chief Complaints

, 2013
Alise Brown, William Storm, Brian Fowler
openalex   +2 more sources