Radiation dose and image quality evaluation relative to different contrast media using cone-beam CT

2012 ◽  
Vol 4 (5) ◽  
pp. 505-513 ◽  
Author(s):  
Jijo Paul ◽  
Thomas J Vogl ◽  
Emmanuel C Mbalisike
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Contrast Media ◽  
Quality Evaluation ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Image Quality Evaluation

Dose and Image Quality Evaluation of a Dedicated Cone-Beam CT System for High-Contrast Neurologic Applications

2010 ◽  
Vol 194 (2) ◽  
pp. W193-W201 ◽  
Author(s):  
Lifeng Yu ◽  
Thomas J. Vrieze ◽  
Michael R. Bruesewitz ◽  
James M. Kofler ◽  
David R. DeLone ◽  
...  
Keyword(s):  
Image Quality ◽  
Quality Evaluation ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
High Contrast ◽  
Image Quality Evaluation ◽  
Ct System

SU-DD-A4-04: Dosimetry and Image Quality Evaluation of a Dedicated Cone-Beam CT System for Sinus and Temporal Bone Applications

2007 ◽  
Vol 34 (6Part1) ◽  
pp. 2327-2327 ◽  
Author(s):  
L Yu ◽  
T Vrieze ◽  
M Bruesewitz ◽  
J Kofler ◽  
C McCollough
Keyword(s):  
Image Quality ◽  
Temporal Bone ◽  
Quality Evaluation ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Image Quality Evaluation ◽  
Ct System

scholarly journals Prediction of detectability of the mandibular canal by quantitative image quality evaluation using cone beam CT

2018 ◽  
pp. 20170369 ◽  
Author(s):  
Yohei Takeshita ◽  
Mayumi Shimizu ◽  
Gainer R Jasa ◽  
Warangkana Weerawanich ◽  
Kazutoshi Okamura ◽  
...  
Keyword(s):  
Image Quality ◽  
Quality Evaluation ◽  
Cone Beam Ct ◽  
Mandibular Canal ◽  
Cone Beam ◽  
Image Quality Evaluation ◽  
Quantitative Image

SU-GG-I-57: Dose and Image Quality Evaluation for Partial and Full-Angle Kilovoltage Cone-Beam CT Protocols

2010 ◽  
Vol 37 (6Part3) ◽  
pp. 3114-3114
Author(s):  
S Kim ◽  
S Yoo ◽  
F Yin ◽  
E Samei ◽  
T Yoshizumi
Keyword(s):  
Image Quality ◽  
Quality Evaluation ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Image Quality Evaluation

scholarly journals Evaluation of a low-dose protocol for cone beam computed tomography of the temporomandibular joint

2020 ◽  
Vol 49 (6) ◽  
pp. 20190495 ◽  
Author(s):  
Durer Iskanderani ◽  
Mats Nilsson ◽  
Per Alstergren ◽  
Xie-Qi Shi ◽  
Kristina Hellen-halme
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Temporomandibular Joint ◽  
Low Dose ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Sign Test ◽  
Intraobserver Agreement ◽  
Radiographic Findings ◽  
Need To Evaluate

Objective: Evaluation of cone beam CT (CBCT) examination with a low-dose scanning protocol for assessment of the temporomandibular joint (TMJ). Methods: 34 adult patients referred for CBCT imaging of the TMJ underwent two examinations with two scanning protocols, a manufacturer-recommended protocol (default) and a low-dose protocol where the tube current was reduced to 20% of the default protocol. Three image stacks were reconstructed: default protocol, low-dose protocol, and processed (using a noise reduction algorithm) low-dose protocol. Four radiologists evaluated the images. The Sign test was used to evaluate visibility of TMJ anatomic structures and image quality. Receiver operating characteristic analyzes were performed to assess the diagnostic accuracy. κ values were used to evaluate intraobserver agreement. Results: With the low-dose and processed protocols, visibility of the TMJ anatomical structures and overall image quality were comparable to the default protocol. No significant differences in radiographic findings were found for the two low-dose protocols compared to the default protocol. The area under the curves (Az) averaged for the low-dose and processed protocols, according to all observers, were 0.931 and 0.941, respectively. Intraobserver agreement was good to very good. Conclusion: For the CBCT unit used in this study, the low-dose CBCT protocol for TMJ examination was diagnostically comparable to the manufacturer-recommended protocol, but delivered a five times lower radiation dose. There is an urgent need to evaluate protocols for CBCT examinations of TMJ in order to optimize them for a radiation dose as low as diagnostically acceptable (the as low as diagnostically acceptable principle recommended by NCRP).

3D cone-beam CT of the ankle using a novel twin robotic X-ray system: Assessment of image quality and radiation dose

2019 ◽  
Vol 119 ◽  
pp. 108659 ◽  
Author(s):  
Jan-Peter Grunz ◽  
Andreas Steven Kunz ◽  
Carsten Herbert Gietzen ◽  
Andreas Max Weng ◽  
Maike Veyhl-Wichmann ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
X Ray ◽  
System Assessment
Sign in / Sign up

Export Citation Format

Share Document