scholarly journals An evaluation of the effect of tube potential on clinical image quality using direct digital detectors for pelvis and lumbar spine radiographs

2020 ◽  
Vol 67 (4) ◽  
pp. 260-268 ◽  
Author(s):  
Nicole E Peacock ◽  
Adam L Steward ◽  
Peter J Riley
Keyword(s):  
Lumbar Spine ◽  
Image Quality ◽  
Clinical Image ◽  
Tube Potential ◽  
Spine Radiographs

scholarly journals Lumbar spine radiographs — is it time for widespread adoption of posteroanterior projection?

2019 ◽  
Vol 92 (1103) ◽  
pp. 20190386
Author(s):  
Christopher Green ◽  
Guru Karnati ◽  
Katharine Thomson ◽  
Ashok Subramanian
Keyword(s):  
Lumbar Spine ◽  
Image Quality ◽  
Effective Dose ◽  
Acquisition Time ◽  
Reference Image ◽  
Patient Study ◽  
Spine Radiography ◽  
Widespread Adoption ◽  
Spine Radiograph ◽  
Spine Radiographs

Objective: Phantom studies and a prior patient study have shown up to 53% effective dose reduction when lumbar spine radiographs are acquired posteroanterior (PA) instead of anteroposterior (AP). Since November 2017, Taunton and Somerset NHS Foundation Trust has acquired all standing lumbar spine radiographs PA. The aim of this study was to locally evaluate dose and image quality in both projections and survey current UK practice. Methods: 80 outpatients having a standing lumbar spine radiograph (40 AP; 40 PA) had their dose–area product recorded at a constant KV and focus film distance. Effective dose was calculated using PCXMC software. Each blinded radiograph was scored against an optimal reference image using European Guidelines criteria. The data were analyzed using Mann–Whitney U tests and linear regression. Eighty radiologists nationally were sent an anonymous survey to establish their current practice. Results: A lumbar spine radiograph acquired PA instead of AP reduced effective dose by 41% (p < 0.001) with no difference in image quality (p = 0.9). 21 radiologists completed our survey and only 1 NHS Trust is currently using PA. Conclusion: PA lumbar spine radiography reduces patient radiation exposure with no affect on image quality, acquisition time or cost. The majority of NHS Trusts nationally are still using AP and it is time to standardize to PA. Advances in knowledge: This patient study provides further good evidence of how reduction in exposure to ionizing radiation can be achieved in lumbar spine radiography and more widespread adoption of PA protocol could improve patient safety.

Influence of the characteristic curve on the clinical image quality of lumbar spine and chest radiographs

2004 ◽  
Vol 77 (915) ◽  
pp. 204-215 ◽  
Author(s):  
A Tingberg ◽  
C Herrmann ◽  
B Lanhede ◽  
A Almén ◽  
M Sandborg ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Image Quality ◽  
Characteristic Curve ◽  
Chest Radiographs ◽  
Clinical Image

scholarly journals ANODE HEEL EFFECT ATTENUATION IN LUMBAR SPINE RADIOGRAPHY: CAN THE USE OF ALUMINIUM FILTERS IMPROVE CLINICAL PRACTICE OF RADIOGRAPHERS?

2020 ◽  
Vol 37 (2) ◽  
pp. 19-26
Author(s):  
Luís Pedro Vieira RIBEIRO ◽  
António Fernando Caldeira Lagem ABRANTES ◽  
Oksana LESYUK ◽  
Rúben DORES ◽  
Patrick SOUSA ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Lumbar Spine ◽  
Image Quality ◽  
Image Quality Assessment ◽  
Skin Dose ◽  
Lateral Projection ◽  
Spine Radiography ◽  
Imaging Department ◽  
Spine Radiographs ◽  
Heel Effect

Purpose: The aim of this study was to design an aluminium-based filter to reduce the anode heel effect in lumbar spine radiographs. Methods: Initially, lumbar spine examinations were observed in a public imaging department to determine the standard exposure parameters. Then, the characterization of the anode heel effect was made using the Unfors Xi R/F detector and based on the data collected, aluminium filters were designed with a wedge shape, with thicknesses ranging from 0.1 to 4.0 mm. The assessment of the entrance skin dose (ESD) reduction was performed on the anthropomorphic phantom, with and without filters, using the universal dosimeter UNIDOS E equipped with an ionization chamber. Lastly, the image quality assessment was performed with the Pehamed Phantom Digrad A+K and image quality surveys were applied to radiographers and radiologists.     Results and Discussion: Uniformity of the beam was achieved, especially with the filter number 2, which presents a significant variation of 9% between cathode and anode side. This filter contributes to ESD reduction of 35% and 36% for AP and lateral projection, respectively. Also, according to the radiographers and radiologists, it improves the image quality of lumbar spine radiography. Conclusion: The use of aluminium filters can be advantageous in the clinical practice of radiographers when carrying out lumbar spine radiographs, since it allows to standardize the anode heel effect, reducing the radiation dose to the patient and without compromising the image quality.

Influence of the characteristic curve on the clinical image quality and patient absorbed dose in lumbar spine radiography

2001 ◽  
Author(s):  
Anders Tingberg ◽  
Clemens Herrmann ◽  
Birgitta Lanhede ◽  
Anja Almen ◽  
Saron Mattsson ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Image Quality ◽  
Characteristic Curve ◽  
Absorbed Dose ◽  
Clinical Image ◽  
Spine Radiography

The influence of different technique factors on image quality of lumbar spine radiographs as evaluated by established CEC image criteria.

2000 ◽  
Vol 73 (875) ◽  
pp. 1192-1199 ◽  
Author(s):  
A Almén ◽  
A Tingberg ◽  
S Mattsson ◽  
J Besjakov ◽  
S Kheddache ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Image Quality ◽  
Spine Radiographs
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