TH-E-110-09: Grids Revisited: The Effect of Antiscatter Grids on Image Quality and Dose in Mobile C-Arm Cone-Beam CT for Image-Guided Surgery

2011 ◽  
Vol 38 (6Part36) ◽  
pp. 3875-3875
Author(s):  
S Schafer ◽  
Y Otake ◽  
A Uneri ◽  
D Mirota ◽  
S Nithiananthan ◽  
...  
Keyword(s):  
Image Quality ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Image Guided Surgery ◽  
Guided Surgery ◽  
Image Guided

Feasibility study of low-dose intra-operative cone-beam CT for image-guided surgery

2011 ◽  
Author(s):  
Xiao Han ◽  
Shuanghe Shi ◽  
Junguo Bian ◽  
Patrick Helm ◽  
Emil Y. Sidky ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Low Dose ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Image Guided Surgery ◽  
Guided Surgery ◽  
Image Guided

scholarly journals Volume-of-change cone-beam CT for image-guided surgery

2012 ◽  
Vol 57 (15) ◽  
pp. 4969-4989 ◽  
Author(s):  
Junghoon Lee ◽  
J Webster Stayman ◽  
Yoshito Otake ◽  
Sebastian Schafer ◽  
Wojciech Zbijewski ◽  
...  
Keyword(s):  
Cone Beam Ct ◽  
Cone Beam ◽  
Image Guided Surgery ◽  
Guided Surgery ◽  
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.

scholarly journals Algorithm-enabled exploration of image-quality potential of cone-beam CT in image-guided radiation therapy

2015 ◽  
Vol 60 (12) ◽  
pp. 4601-4633 ◽  
Author(s):  
Xiao Han ◽  
Erik Pearson ◽  
Charles Pelizzari ◽  
Hania Al-Hallaq ◽  
Emil Y Sidky ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Image Quality ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Image Guided Radiation Therapy ◽  
Image Guided

Low dose cone beam CT for paediatric image-guided radiotherapy: image quality and practical recommendations

2021 ◽  
Author(s):  
Abigail Bryce-Atkinson ◽  
Rianne De Jong ◽  
Tom Marchant ◽  
Gillian Whitfield ◽  
Marianne C Aznar ◽  
...  
Keyword(s):  
Image Quality ◽  
Low Dose ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Image Guided Radiotherapy ◽  
Image Guided ◽  
Practical Recommendations

Investigation of cone-beam CT image quality trade-off for image-guided radiation therapy

2016 ◽  
Vol 61 (9) ◽  
pp. 3317-3346 ◽  
Author(s):  
Junguo Bian ◽  
Gregory C Sharp ◽  
Yang-Kyun Park ◽  
Jinsong Ouyang ◽  
Thomas Bortfeld ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Image Quality ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Ct Image ◽  
Trade Off ◽  
Image Guided Radiation Therapy ◽  
Image Guided ◽  
Ct Image Quality
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