Results 181 to 190 of about 37,305 (281)

Automated quality assurance of HDR brachytherapy: Evaluation of Dwell‐position accuracy and Dwell‐time linearity via image processing of radiochromic films

open access: yesPrecision Radiation Oncology, EarlyView.
This study develops a method combining radiochromic film and image processing to assess HDR brachytherapy source accuracy and linearity, achieving high precision and efficiency . Abstract Purpose To develop and validate a fully automated quality assurance method for high‐dose rate (HDR) brachytherapy, enabling the precise evaluation of source dwell ...
Qingqing Yuan   +4 more
wiley   +1 more source

A Novel Method for Generating a Fused Ventilation–Perfusion Map Using CT‐Derived Ventilation and FDG‐PET for Lung Functional Avoidance in Radiotherapy: A Feasibility Study

open access: yesPrecision Radiation Oncology, EarlyView.
This study retrospectively analyzed two types of respiratory phase CT and PET/CT images of 20 lung cancer patients. After DIR and functional grading, three lung function images were developed, and their correlations and differences were evaluated. Abstract Background Pulmonary ventilation–perfusion function plays a crucial role in both radiotherapy ...
Suyan Bi   +4 more
wiley   +1 more source

RADIUM AND OTHER RADIOACTIVE SUBSTANCES. POLONIUM, ACTINIUM, AND THORIUM [PDF]

open access: yesThe American Journal of the Medical Sciences, 1904
openaire   +1 more source

The Next Frontier: Micro/Nanorobots Operating Inside the Living Body

open access: yesSmartBot, EarlyView.
Micro/nanorobots, with their tiny size and controllable motion capabilities, can perform complex and precise tasks in micro‐spaces, thus showing broad application prospects in the biomedical field. This review systematically summarizes the core advantages of micro/nanorobots in real‐time in vivo imaging, targeted drug delivery, and active barrier ...
Ningbo Yu   +5 more
wiley   +1 more source

Development of lesion and organ negative cast modelling technique for quality assurance and optimization of nuclear medicine images. [PDF]

open access: yesCommun Med (Lond)
Fedrigo R   +7 more
europepmc   +1 more source

2D van der Waals System Integrated with Targeting Radio‐Diagnostic and Imaging Functions

open access: yesSmall, EarlyView.
Layered double hydroxide (LDH) nanoplates were engineered for tumor‐targeted imaging and therapy. By exploiting folate receptor (FR) expression levels, the system achieves selective tumor accumulation and high‐resolution dual PET/fluorescence (PET/FL) imaging.
Sairan Eom   +6 more
wiley   +1 more source

Modelling and Dose Calculations [PDF]

open access: yes, 2013
Kanisch, Günter, Nielsen, Sven Poul
core  

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