Assessment of organ and effective dose when using region-of-interest attenuators in cone-beam CT and interventional fluoroscopy

Z Xiong, S Vijayan, S Rudin… - Journal of Medical …, 2017 - spiedigitallibrary.org
In some medical-imaging procedures using cone-beam CT (CBCT) and fluoroscopy, only
the center of the field of view (FOV) may be needed to be visualized with optimal image …

Skin dose mapping for non-uniform x-ray fields using a backscatter point spread function

S Vijayan, Z Xiong, A Shankar, S Rudin… - … 2017: Physics of …, 2017 - spiedigitallibrary.org
Beam shaping devices like ROI attenuators and compensation filters modulate the intensity
distribution of the xray beam incident on the patient. This results in a spatial variation of skin …

[HTML][HTML] Monte Carlo investigation of backscatter point spread function for x-ray imaging examinations

Z Xiong, S Vijayan, S Rudin… - Proceedings of SPIE--the …, 2017 - ncbi.nlm.nih.gov
X-ray imaging examinations, especially complex interventions, may result in relatively high
doses to the patient's skin inducing skin injuries. A method was developed to determine the …

Calculation of Forward Scatter Dose Distribution at the skin entrance from the patient table for fluoroscopically guided interventions using a pencil beam convolution …

S Vijayan, Z Xiong, C Guo, J Troville… - … 2018: Physics of …, 2018 - spiedigitallibrary.org
The forward-scatter dose distribution generated by the patient table during fluoroscopic
interventions and its contribution to the skin dose is studied. The forward-scatter dose …

Organ and effective dose reduction for region-of-interest (ROI) CBCT and fluoroscopy

Z Xiong, S Vijayan, S Rudin… - Medical Imaging 2017 …, 2017 - spiedigitallibrary.org
In some medical-imaging procedures using CBCT and fluoroscopy, it may be needed to
visualize only the center of the field-of-view with optimal quality. To reduce the dose to the …

Recalage déformable, jeux de données et protocoles d'évaluation pour la chirurgie mini-invasive abdominale augmentée

R Modrzejewski - 2020 - theses.hal.science
Cette thèse concerne les techniques de recalage déformable de données pré-opératoires
dans la scène peropératoire en tant qu'étape indispensable à la réalisation de réalité …

Calculation of the entrance skin dose distribution for fluoroscopically guided interventions using a pencil beam backscatter model

S Vijayan, Z Xiong, S Rudin… - Journal of Medical …, 2017 - spiedigitallibrary.org
Radiation backscattered from the patient can contribute substantially to skin dose in
fluoroscopically guided interventions (FGIs). The distribution of backscatter is not spatially …

Development and Enhancement of a Real-Time Skin Dose Tracking System dor Fluoroscopically-Guided Interventions

S Vijayan - 2017 - search.proquest.com
X-ray image guided interventions are increasingly used for the treatment of vascular
pathologies. Some of the interventions can be prolonged resulting in a high skin dose to the …

Enhancement of the Real-time Dose Tracking System for Interventional Fluoroscopic Procedures through Monte Carlo Investigations

Z Xiong - 2018 - search.proquest.com
Fluoroscopically-guided neuro-interventional procedures are increasingly used in the
treatment of various vascular lesions. They provide important benefits to public health, but …