Dose Reduction in Dental CT: A Phantom Study With Special Focus on Tin Filter Technique

2020 ◽  
Vol 215 (4) ◽  
pp. 945-953
Author(s):  
Carsten Hackenbroch ◽  
Sebastian Schnaidt ◽  
Daniel Halt ◽  
Frank Wilde ◽  
Meinrad Beer ◽  
...  
Keyword(s):  
Dose Reduction ◽  
Phantom Study ◽  
Special Focus ◽  
Dental Ct ◽  
Filter Technique ◽  
Tin Filter

A PHANTOM STUDY SHOWING THE IMPORTANCE OF BREAST SHIELDING DURING HEAD CT

2020 ◽  
Vol 188 (4) ◽  
pp. 464-469 ◽  
Author(s):  
Nika Zalokar ◽  
Nejc Mekiš
Keyword(s):  
Computed Tomography ◽  
Dose Reduction ◽  
Phantom Study ◽  
Anthropomorphic Phantom ◽  
Head Ct ◽  
Lead Shield ◽  
Phantom Measurements ◽  
Lead Shielding ◽  
Head Computed Tomography

Abstract This study aimed to investigate the dose to the breasts during head computed tomography (CT) if lead shielding is used. The study was performed in two major hospitals using helical and axial protocols on an anthropomorphic phantom. Measurements were performed with and without the use of a lead shield of 0.5 mm equivalent density. The results showed a significant decrease in dose with the lead shielding in both hospitals. During the helical protocol, the use of shielding significantly reduced the dose by 96% in Hospital A and 82% in Hospital B. The dose reduction during axial protocol was also significant: 95% in Hospital A and 86% in Hospital B with lead shielding. Considering the significant dose reduction of 82% up to 96% during this study, we highly recommend the shielding of breasts regardless of the protocol used during head CT examinations.

Flat-Panel X-ray Detector Based on Amorphous Silicon versus Asymmetric Screen-Film System: Phantom Study of Dose Reduction and Depiction of Simulated Findings

Radiology ◽  
2003 ◽  
Vol 227 (2) ◽  
pp. 484-492 ◽  
Author(s):  
Ulrike Rapp-Bernhardt ◽  
Friedrich W. Roehl ◽  
Robert C. Gibbs ◽  
Hagen Schmidl ◽  
Ulrich W. Krause ◽  
...  
Keyword(s):  
Amorphous Silicon ◽  
Dose Reduction ◽  
Phantom Study ◽  
Film System ◽  
Flat Panel ◽  
X Ray

scholarly journals Dual-source photon counting detector CT with a tin filter: a phantom study on iodine quantification performance

2019 ◽  
Vol 64 (11) ◽  
pp. 115019 ◽  
Author(s):  
Ashley Tao ◽  
Richard Huang ◽  
Shengzhen Tao ◽  
Gregory J Michalak ◽  
Cynthia H McCollough ◽  
...  
Keyword(s):  
Photon Counting ◽  
Phantom Study ◽  
Photon Counting Detector ◽  
Iodine Quantification ◽  
Dual Source ◽  
Tin Filter
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