Image guidance doses delivered during radiotherapy: Quantification, management, and reduction: Report of the AAPM Therapy Physics Committee Task Group 180

GX Ding, P Alaei, B Curran, R Flynn… - Medical …, 2018 - Wiley Online Library
Background With radiotherapy having entered the era of image guidance, or image‐guided
radiation therapy (IGRT), imaging procedures are routinely performed for patient positioning …

Monte Carlo methods for medical imaging research

H Lee - Biomedical Engineering Letters, 2024 - Springer
In radiation-based medical imaging research, computational modeling methods are used to
design and validate imaging systems and post-processing algorithms. Monte Carlo methods …

Dosimetry of CBCT: methods, doses and clinical consequences

JR Sykes, R Lindsay, G Iball… - Journal of Physics …, 2013 - iopscience.iop.org
The use of Cone beam CT (CBCT) systems for Image Guided Radiotherapy is rapidly
expanding in the developed world. With its use comes concern for the increased risks of …

Dose delivered from Varian's CBCT to patients receiving IMRT for prostate cancer

N Wen, H Guan, R Hammoud, D Pradhan… - Physics in Medicine …, 2007 - iopscience.iop.org
With the increased use of cone beam CT (CBCT) for daily patient setup, the accumulated
dose from CBCT may be significantly higher than that from simulation CT or portal imaging …

Inclusion of the dose from kilovoltage cone beam CT in the radiation therapy treatment plans

P Alaei, G Ding, H Guan - Medical physics, 2010 - Wiley Online Library
Purpose Cone beam CT is increasingly being used for daily patient positioning verification
during radiation therapy treatments. The daily use of CBCT could lead to accumulated …

Calculation of photon energy deposition kernels and electron dose point kernels in water

E Mainegra‐Hing, DWO Rogers, I Kawrakow - Medical physics, 2005 - Wiley Online Library
Effects of changes in the physics of EGSnrc compared to egs4/presta on energy deposition
kernels for monoenergetic photons and on dose point kernels for beta sources in water are …

Dose calculation and treatment plan optimization including imaging dose from kilovoltage cone beam computed tomography

P Alaei, E Spezi, M Reynolds - Acta Oncologica, 2014 - Taylor & Francis
Background. With the increasing use of cone beam computed tomography (CBCT) for
patient position verification and radiotherapy treatment adaptation, there is an increasing …

Precision IORT–Image guided intraoperative radiation therapy (igIORT) using online treatment planning including tissue heterogeneity correction

F Schneider, F Bludau, S Clausen, J Fleckenstein… - Physica Medica, 2017 - Elsevier
Background To the present date, IORT has been eye and hand guided without treatment
planning and tissue heterogeneity correction. This limits the precision of the application and …

A point kernel algorithm for microbeam radiation therapy

C Debus, U Oelfke, S Bartzsch - Physics in Medicine & Biology, 2017 - iopscience.iop.org
Microbeam radiation therapy (MRT) is a treatment approach in radiation therapy where the
treatment field is spatially fractionated into arrays of a few tens of micrometre wide planar …

Commissioning kilovoltage cone‐beam CT beams in a radiation therapy treatment planning system

P Alaei, E Spezi - Journal of applied clinical medical physics, 2012 - Wiley Online Library
The feasibility of accounting of the dose from kilovoltage cone‐beam CT in treatment
planning has been discussed previously for a single cone‐beam CT (CBCT) beam from one …