Estimation of absorbed radiation doses to skin and S‐values for organs at risk due to nasal administration of PET agents using Monte Carlo simulations

2021 ◽  
Author(s):  
Jim O’Doherty ◽  
Colby D. Mangini ◽  
David M. Hamby ◽  
David Boozer ◽  
Nisha Singh ◽  
...  
Keyword(s):  
At Risk ◽  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Organs At Risk ◽  
Nasal Administration ◽  
Radiation Doses

Estimation of absorbed radiation doses to skin and S-values for organs at risk due to nasal administration of PET agents using Monte Carlo simulations

2021 ◽  
Vol 84 ◽  
pp. 301-302
Author(s):  
Jim O. Doherty ◽  
Colby Mangini ◽  
David Hamby ◽  
David Boozer ◽  
Nisha Singh ◽  
...  
Keyword(s):  
At Risk ◽  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Organs At Risk ◽  
Nasal Administration ◽  
Radiation Doses

scholarly journals Assessment of Radiation Doses Delivered to Organs at Risk Among Patients With Early-Stage Favorable Hodgkin Lymphoma Treated With Contemporary Radiation Therapy

2020 ◽  
Vol 3 (9) ◽  
pp. e2013935
Author(s):  
Chelsea C. Pinnix ◽  
Jillian R. Gunther ◽  
Penny Fang ◽  
Mikaela E Bankston ◽  
Sarah A. Milgrom ◽  
...  
Keyword(s):  
At Risk ◽  
Radiation Therapy ◽  
Hodgkin Lymphoma ◽  
Early Stage ◽  
Organs At Risk ◽  
Radiation Doses

Ideal Input Parameters for Organs at Risk on Monte Carlo Optimizer: Should It Be DVH-Based or Biologically-Based?

2013 ◽  
Vol 87 (2) ◽  
pp. S715-S716
Author(s):  
L.N. Chaudhari ◽  
M. Meshram ◽  
P. Shinde ◽  
P. Deshmukh ◽  
V. Shankar
Keyword(s):  
At Risk ◽  
Monte Carlo ◽  
Organs At Risk ◽  
Input Parameters

scholarly journals Comparison of Ray Tracing and Monte Carlo Calculation Algorithms for Spine Lesions Treated with CyberKnife

2021 ◽  
Author(s):  
Jun Li ◽  
Xile Zhang ◽  
Yuxi Pan ◽  
Hongqing Zhuang ◽  
Ruijie Yang
Keyword(s):  
At Risk ◽  
Monte Carlo ◽  
Ray Tracing ◽  
Thoracic Spine ◽  
Organs At Risk ◽  
Target Coverage ◽  
Dose Volume Histograms ◽  
Percentage Volume ◽  
Calculation Algorithms ◽  
Sacral Spine

Abstract Purpose: This study attempts to evaluate Ray Tracing (RT) and Monte Carlo (MC) algorithm for CyberKnife treatments of spine lesions and determine whether MC algorithm is necessary for all spine treatment and analyze which sites of spine lesion for which RT algorithm is comparable to MC algorithm. Methods: The CyberKnife is used for stereotactic body radiotherapy for lesions in the cervical spine (30), thoracic spine (50), lumbar spine (30) and sacral spine (15). Dose was calculated using RT and MC algorithms for patients planned with the same beam angles and monitor units. Dose-volume histograms of the target and selected critical structures are evaluated. Results: The average target coverage of prescribed dose with MC algorithms was 94.80%, 88.47%, 92.52% and 93.41% respectively in cervical, thoracic, lumbar and sacral spine. For thoracic spine, RT algorithm significantly overestimates the percentage volume of target covered by the prescribed dose, as well as overestimates doses to organs at risk in most cases, including lung, spinal cord and esophagus. For cervical, lumbar and sacral spine, the differences of the target coverage of prescription dose were generally less than 3% between the RT and MC algorithms. The differences of doses to organs at risk varied with lesion sites and surrounding organs. Conclusions: In the thoracic spine lesions with beams through air cavities, RT algorithm should be limited and verified with MC algorithm, but the RT algorithm is adequate for treatment of cervical, lumbar and sacral spine lesions without or small amount of beams passing through the lungs.

Monte Carlo calculated doses to treatment volumes and organs at risk for permanent implant lung brachytherapy

2013 ◽  
Vol 58 (20) ◽  
pp. 7061-7080 ◽  
Author(s):  
J G H Sutherland ◽  
K M Furutani ◽  
R M Thomson
Keyword(s):  
At Risk ◽  
Monte Carlo ◽  
Organs At Risk ◽  
Permanent Implant

scholarly journals Verification and Evaluation of Radiation Doses received by organs at risk in (3D-CRT) and IMRT technique for breast cancer

2020 ◽  
Vol 1660 ◽  
pp. 012098
Author(s):  
Nashwan K. Abdulkareem ◽  
Fatiheea F Hassan ◽  
Arthur Saniotis
Keyword(s):  
Breast Cancer ◽  
At Risk ◽  
Organs At Risk ◽  
Radiation Doses ◽  
3D Crt
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