Evaluation of nonrigid registration models for interfraction dose accumulation in radiotherapy

2009 ◽  
Vol 36 (9Part1) ◽  
pp. 4268-4276 ◽  
Author(s):  
Guillaume Janssens ◽  
Jonathan Orban de Xivry ◽  
Stein Fekkes ◽  
André Dekker ◽  
Benoit Macq ◽  
...  
Keyword(s):  
Nonrigid Registration ◽  
Dose Accumulation

scholarly journals Dose accumulation for personalized stereotactic MR-guided adaptive radiation therapy in prostate cancer

2021 ◽  
Vol 157 ◽  
pp. 197-202
Author(s):  
Omar Bohoudi ◽  
Anna M.E. Bruynzeel ◽  
Shyama Tetar ◽  
Ben J. Slotman ◽  
Miguel A. Palacios ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Radiation Therapy ◽  
Adaptive Radiation ◽  
Adaptive Radiation Therapy ◽  
Dose Accumulation

scholarly journals Real-Time Lung Tumor Tracking Using a CUDA Enabled Nonrigid Registration Algorithm for MRI

2020 ◽  
Vol 8 ◽  
pp. 1-8
Author(s):  
Nazanin Tahmasebi ◽  
Pierre Boulanger ◽  
Jihyun Yun ◽  
Gino Fallone ◽  
Michelle Noga ◽  
...  
Keyword(s):  
Real Time ◽  
Lung Tumor ◽  
Nonrigid Registration ◽  
Registration Algorithm ◽  
Tumor Tracking

scholarly journals A novel technique to enable experimental validation of deformable dose accumulation

2012 ◽  
Vol 39 (2) ◽  
pp. 765-776 ◽  
Author(s):  
Carolyn J. Niu ◽  
Warren D. Foltz ◽  
Michael Velec ◽  
Joanne L. Moseley ◽  
Adil Al-Mayah ◽  
...  
Keyword(s):  
Experimental Validation ◽  
Dose Accumulation ◽  
Novel Technique

OC-0503: Impact of cardiac and respiratory motion during cardiac radiosurgery: a dose accumulation study in a porcine model

2014 ◽  
Vol 111 ◽  
pp. S197-S198 ◽  
Author(s):  
R. Werner ◽  
F. Bode ◽  
R. Bruder ◽  
M. Gebhard ◽  
J. Dunst ◽  
...  
Keyword(s):  
Respiratory Motion ◽  
Porcine Model ◽  
Dose Accumulation

scholarly journals Evaluation of deformable image registration (DIR) methods for dose accumulation in nasopharyngeal cancer patients during radiotherapy

2017 ◽  
Vol 51 (4) ◽  
pp. 438-446 ◽  
Author(s):  
Wannapha Nobnop ◽  
Imjai Chitapanarux ◽  
Hudsaleark Neamin ◽  
Somsak Wanwilairat ◽  
Vicharn Lorvidhaya ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Image Registration ◽  
Treatment Plan ◽  
Nasopharyngeal Cancer ◽  
Treatment Strategies ◽  
Deformable Image Registration ◽  
Organ Dose ◽  
Target Dose ◽  
Dose Accumulation ◽  
The Impact

Abstract Introduction Deformable image registration (DIR) is used to modify structures according to anatomical changes for observing the dosimetric effect. In this study, megavoltage computed tomography (MVCT) images were used to generate cumulative doses for nasopharyngeal cancer (NPC) patients by various DIR methods. The performance of the multiple DIR methods was analysed, and the impact of dose accumulation was assessed. Patients and methods The study consisted of five NPC patients treated with a helical tomotherapy unit. The weekly MVCT images at the 1st, 6th, 11th, 16th, 21st, 26th, and 31st fractions were used to assess the dose accumulation by the four DIR methods. The cumulative dose deviations from the initial treatment plan were analysed, and correlations of these variations with the anatomic changes and DIR methods were explored. Results The target dose received a slightly different result from the initial plan at the end of the treatment. The organ dose differences increased as the treatment progressed to 6.8% (range: 2.2 to 10.9%), 15.2% (range: -1.7 to 36.3%), and 6.4% (range: -1.6 to 13.2%) for the right parotid, the left parotid, and the spinal cord, respectively. The mean uncertainty values to estimate the accumulated doses for all the DIR methods were 0.21 ± 0.11 Gy (target dose), 1.99 ± 0.76 Gy (right parotid), 1.19 ± 0.24 Gy (left parotid), and 0.41 ± 0.04 Gy (spinal cord). Conclusions Accuracy of the DIR methods affects the estimation of dose accumulation on both the target dose and the organ dose. The DIR methods provide an adequate dose estimation technique for observation as a result of inter-fractional anatomic changes and are beneficial for adaptive treatment strategies.

Three-dimensional dose accumulation in pseudo-split-field IMRT and brachytherapy for locally advanced cervical cancer

Brachytherapy ◽  
2015 ◽  
Vol 14 (4) ◽  
pp. 481-489 ◽  
Author(s):  
Baozhou Sun ◽  
Deshan Yang ◽  
Jackie Esthappan ◽  
Jose Garcia-Ramirez ◽  
Samantha Price ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Locally Advanced ◽  
Three Dimensional ◽  
Advanced Cervical Cancer ◽  
Dose Accumulation ◽  
Locally Advanced Cervical Cancer ◽  
Split Field
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