Results 51 to 60 of about 12,503 (204)

Treatment plan dosimetric impact after catheter stretch during multi-catheter interstitial breast brachytherapy

Journal of Contemporary Brachytherapy, 2017
Purpose: Nylon 6/6 interstitial brachytherapy catheters may stretch when exposed to moisture, mechanical tension, and body temperature. The purpose of this study is to evaluate the magnitude of catheter stretch during a course of multi-catheter ...
Eeva Boman, Dean Paterson, Junou Huang, Shelley Pearson, Carol Johnson   +4 more
doaj   +1 more source

Normal tissue complication probability models of late cardiopulmonary toxicity following deep inspiration breath hold for breast cancer adjuvant radiotherapy

Precision Radiation Oncology, EarlyView.
Deep inspiration breath hold (DIBH) markedly cuts heart and left lung radiation doses during left‐sided breast cancer radiotherapy. The normal tissue complication probability (NTCP) model further confirms lower predicted cardiopulmonary toxicities versus free breathing (FB), potentially improving patients’ quality of life.
Lin Lin, Liang Liu, Zhengxin Gao, Yaling Hong, Qing Gong, Zhan Yu, Xue Liu, Qiaoying Hu, Yongqiang Li, Shen Fu, Qi Yu   +10 more
wiley   +1 more source

Implementation of internal monitoring programs for workers occupationally exposed by 131I in nuclear medicine services in Brazil

Brazilian Journal of Radiation Sciences, 2018
In nuclear medicine services (NMS), workers routinely handle radionuclides for diagnostic and therapy. This practice represents a risk of incorporation by these radionuclides. The International Atomic Energy Agency (IAEA) recommends the implementation of
Salomão Marques de Oliveira, Ana Letícia Almeida Dantas, Bernardo Maranhão Dantas   +2 more
doaj   +1 more source

Harnessing the nonthermal effects of ultrasound for cancer treatment: From mechanisms to applications

Smart Molecules, EarlyView.
Nonthermal ultrasound transforms acoustic energy into diverse therapeutic bioeffects through cavitation, mechanical stimulation, and physicochemical activation. This review discusses how acoustic parameters, biological mechanisms, and responsive materials interact to influence nonthermal ultrasound‐enabled cancer therapies. Mechanism‐guided engineering
Liu Wang, Huan Tang, Yue Pan, Mingle Li, Weijie Zhao, Kai Liu   +5 more
wiley   +1 more source

Microplastics and the Endocrine–Metabolic Interface: Novel Diagnostic Tools Targeting Thyroid–Adipose Axis

Environmental Toxicology, EarlyView.
ABSTRACT Microplastics (MPs) have been identified as major environmental contaminants that can affect organisms directly and act as carriers of particles and chemical additives, thereby aggravating endocrine networks that coordinate metabolic homeostasis.
Sunday Amos Onikanni, Babasola Aiyeku, Marjorie Dardis Murucci, Temitope Aribigbola, Kenia Bispo, Oluwatosin Stella Olayinka, Rômulo Sperduto Dezonne, Sara Gemini Piperni, Paula Soares, Denise Pires de Carvalho, Leandro Miranda‐Alves   +10 more
wiley   +1 more source

Electron Absorbed Fractions and S Factors for Intermediate Size Target Volumes: Comparison of Analytic Calculations and Monte Carlo Simulations

Applied Sciences
The absorbed fraction and the S factor represent fundamental quantities in MIRD-based dosimetry of radiopharmaceutical therapy (RPT). Although Monte Carlo (MC) simulations represent the gold standard in RPT dosimetry, dose point kernels (DPK) obtained ...
Christina Kotroumpelou, Ioanna Kyriakou, Vladimir Ivanchenko, Sebastien Incerti, Dimitris Emfietzoglou   +4 more
doaj   +1 more source

Determination of 99Mo contamination in a nuclear medicine patient submitted to a diagnostic procedure with 99mTc

Brazilian Archives of Biology and Technology, 2005
99mTc is a radionuclide widely used for imaging diagnosis in nuclear medicine. In Brazil it is obtained by elution from 99Mo-99mTc generators supplied by the Nuclear Energy Research Institute (IPEN).
Bernardo Maranhão Dantas, Ana Letícia Almeida Dantas, Fábio Luiz Navarro Marques, Luiz Bertelli, Michael G. Stabin   +4 more
doaj   +1 more source

Integration of external and internal dosimetry in Switzerland [PDF]

Radiation Protection Dosimetry, 2006
Individual monitoring regulations in Switzerland are based on the ICRP60 recommendations. The annual limit of 20 mSv for the effective dose applies to the sum of external and internal radiation. External radiation is monitored monthly or quarterly with TLD, DIS or CR-39 dosemeters by 10 approved external dosimetry services and reported as Hp(10) and Hp(
D, Frei, C, Wernli, S, Baechler, G, Fischer, H, Jossen, A, Leupin, Y, Lörtscher, R, Mini, T, Otto, R, Schuh, U, Weidmann   +10 more
openaire   +2 more sources

Nonthermal plasma approaches for combating implant‐associated infections: A compendious review

VIEW, EarlyView.
Implant‐associated infections pose serious clinical challenges. Non‐thermal plasma (NTP) modifications overcome this bottleneck in distinct ways relative to traditional sterilization methods. Gas‐phase plasmas generate highly energetic species, UV radiation and reactive oxygen/nitrogen species (RONS), which alter the implant surface properties.
A. M. Trimukhe, Satish Rojekar, Amol Gholap, K. Navaneetha Pandiyaraj, Mukesh Patekar, Claudia Riccardi, R. R. Deshmukh, Tomáš Kovářík, Kalim Deshmukh   +8 more
wiley   +1 more source

The Essential Role of Monte Carlo Simulations for Lung Dosimetry in Liver Radioembolization—Part B: ¹⁶⁶Ho Microspheres

Applied Sciences
This study compares dosimetric approaches for lung dosimetry in 166 radioembolization (Ho-TARE) with direct Monte Carlo (MC) simulations on a voxelized anthropomorphic phantom derived from a real patient’s CT scan, preserving the patient’s lung density ...
Edoardo d’Andrea, Andrea Politano, Bartolomeo Cassano, Nico Lanconelli, Marta Cremonesi, Vincenzo Patera, Massimiliano Pacilio   +6 more
doaj   +1 more source