A feature alignment score for online cone‐beam CT ‐based image‐guided radiotherapy for prostate cancer

2018 ◽  
Vol 45 (7) ◽  
pp. 2898-2911 ◽  
Author(s):  
Catriona Hargrave ◽  
Timothy Deegan ◽  
Michael Poulsen ◽  
Tomasz Bednarz ◽  
Fiona Harden ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Cone Beam Ct ◽  
Alignment Score ◽  
Cone Beam ◽  
Image Guided Radiotherapy ◽  
Image Guided ◽  
Feature Alignment

Image-Guided Radiotherapy for Prostate Cancer using kV/kV-Imaging or Cone Beam CT with Fiducial Markers and Rectal Balloon

2011 ◽  
Vol 81 (2) ◽  
pp. S779
Author(s):  
C. Oehler ◽  
P. Dimmerling ◽  
S. Lang ◽  
S. Kloeck ◽  
C. Glanzmann ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Fiducial Markers ◽  
Rectal Balloon ◽  
Image Guided Radiotherapy ◽  
Image Guided

scholarly journals Patient-based low dose cone beam CT acquisition settings for prostate image-guided radiotherapy treatments on a Varian TrueBeam linear accelerator

2020 ◽  
Vol 93 (1115) ◽  
pp. 20200412
Author(s):  
Maria Antonietta Piliero ◽  
Margherita Casiraghi ◽  
Davide Giovanni Bosetti ◽  
Simona Cima ◽  
Letizia Deantonio ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Image Quality ◽  
Low Dose ◽  
Cone Beam Ct ◽  
Subjective Evaluation ◽  
Cone Beam ◽  
Low Contrast ◽  
Image Guided Radiotherapy ◽  
Image Guided ◽  
Prostate Cancer Radiotherapy

Objective: To evaluate the performance of low dose cone beam CT (CBCT) acquisition protocols for image-guided radiotherapy of prostate cancer. Methods: CBCT images of patients undergoing prostate cancer radiotherapy were acquired with the settings currently used in our department and two low dose settings at 50% and 63% lower exposure. Four experienced radiation oncologists and two radiation therapy technologists graded the images on five image quality characteristics. The scores were analysed through Visual Grading Regression, using the acquisition settings and the patient size as covariates. Results: The low dose acquisition settings have no impact on the image quality for patients with body profile length at hip level below 100 cm. Conclusions: A reduction of about 60% of the dose is feasible for patients with size below 100 cm. The visibility of low contrast features can be compromised if using the low dose acquisition settings for patients with hip size above 100 cm. Advances in knowledge: Low dose CBCT acquisition protocols for the pelvis, based on subjective evaluation of patient images.

Image-guided radiotherapy for prostate cancer with cone beam CT: dosimetric effects of imaging frequency and PTV margin

2016 ◽  
Vol 121 (1) ◽  
pp. 103-108 ◽  
Author(s):  
Hemal Ariyaratne ◽  
Hayley Chesham ◽  
John Pettingell ◽  
Roberto Alonzi
Keyword(s):  
Prostate Cancer ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Image Guided Radiotherapy ◽  
Image Guided ◽  
Ptv Margin

scholarly journals Image Guided Radiotherapy (IGRT) Comparison between Cone Beam CT and Ultrasound System for Prostate Cancer

2016 ◽  
Vol 10 (4) ◽  
pp. 110-114 ◽  
Author(s):  
B. Tas ◽  
I. F. Durmus ◽  
S. Tokdemir Ozturk
Keyword(s):  
Prostate Cancer ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Image Guided Radiotherapy ◽  
Image Guided ◽  
Ultrasound System

4D cone beam CT phase sorting using high frequency optical surface measurement during image guided radiotherapy

2011 ◽  
Author(s):  
G. J. Price ◽  
T. E. Marchant ◽  
J. M. Parkhurst ◽  
P. J. Sharrock ◽  
G. A. Whitfield ◽  
...  
Keyword(s):  
High Frequency ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Surface Measurement ◽  
Optical Surface ◽  
Image Guided Radiotherapy ◽  
Image Guided

Image Guided Radiotherapy (IGRT) via Online Cone Beam CT Substantially Reduces Margin Requirements for Stereotactic Lung Radiotherapy

2007 ◽  
Vol 69 (3) ◽  
pp. S154 ◽  
Author(s):  
I.S. Grills ◽  
G. Hugo ◽  
L.L. Kestin ◽  
K.K. Chao ◽  
J. Wloch ◽  
...  
Keyword(s):  
Cone Beam Ct ◽  
Cone Beam ◽  
Image Guided Radiotherapy ◽  
Margin Requirements ◽  
Image Guided ◽  
Lung Radiotherapy
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