scholarly journals Slot-Scan Digital Radiography of the Lower Extremities: a Comparison to Computed Radiography with Respect to Image Quality and Radiation Dose

2009 ◽  
Vol 10 (1) ◽  
pp. 51 ◽  
Author(s):  
Kwang Hwi Lee ◽  
Jong Won Kwon ◽  
Young Cheol Yoon ◽  
Sang-Hee Choi ◽  
Jee Young Jung ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Digital Radiography ◽  
Computed Radiography ◽  
Lower Extremities

SU-FF-I-85: Optimization of Image Quality and Minimization of Radiation Dose for Chest Computed Radiography

2006 ◽  
Vol 33 (6Part4) ◽  
pp. 2016-2016
Author(s):  
X Kong ◽  
H Liu ◽  
X Rong ◽  
C Sweet ◽  
Z Yang ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Computed Radiography

scholarly journals Optimization of Dose and Image Quality for Computed Radiography and Digital Radiography

2006 ◽  
Vol 19 (2) ◽  
pp. 126-131 ◽  
Author(s):  
John E. Aldrich ◽  
Emerenciana Duran ◽  
Pat Dunlop ◽  
John R. Mayo
Keyword(s):  
Image Quality ◽  
Digital Radiography ◽  
Computed Radiography

scholarly journals A pilot study evaluating erect chest imaging in children, using the Lodox Statscan digital X-ray machine

2009 ◽  
Vol 13 (4) ◽  
pp. 80 ◽  
Author(s):  
Rupesh Baloo Daya ◽  
Maurice A Kibel ◽  
Richard Denys Pitcher ◽  
Lesley Workman ◽  
Tania S Douglas ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Diagnostic Accuracy ◽  
Chest Radiography ◽  
Computed Radiography ◽  
Significant Proportion ◽  
Chest Radiographs ◽  
X Ray ◽  
Airway Narrowing ◽  
Cr System

ABSTRACT Background: Chest radiography accounts for a significant proportion of ionising radiation in children. The radiation dose of radiographs performed on the Lodox Statscan system has been shown to be lower than that of a computed radiography (CR) system. The role of the Lodox Statscan (hereafter referred to as the Statscan) in routine erect chest radiography in children has not been evaluated. Objective: To evaluate the image quality and diagnostic accuracy of erect paediatric chest radiographs obtained with the Statscan and compare this with conventional erect chest images obtained with a CR system. Materials and Methods: Thirty three children with suspected chest pathology were enrolled randomly over a period of three months. Erect chest radiographs were obtained with the Statscan, and a Shimadzu R-20J X-ray machine coupled with a Fuji FCR 5000 CR system. Image quality and diagnostic accuracy and diagnostic capability were evaluated between the two modalities. Results: The erect Statscan allowed superior visualisation of the three major airways. Statscan images however, demonstrated exposure and movement artifacts with hemidiaphragms and ribs most prone to movement. Bronchovascular clarity was also considered unsatisfactory on the Statscan images. Conclusion: The Statscan has limitations in erect chest radiography in terms of movement artefacts, exposure fluctuations, and poor definition of lung markings. Despite this, the Statscan allows better visualisation of the major airways, equivalent to a ‘high KV’ film at a fraction of the radiation dose. This supports the finding of an earlier study evaluating Statscan images in trauma cases, where the images were taken supine. Statscan has great potential in assisting in the diagnosis of childhood tuberculosis where airway narrowing occurs as a result of nodal compression.

Low-dose CT angiography of the lower extremities: a comparison study of image quality and radiation dose

2021 ◽  
Vol 76 (2) ◽  
pp. 156.e19-156.e26
Author(s):  
S. Park ◽  
S.H. Park ◽  
J.H. Hwang ◽  
J.H. Kim ◽  
K.H. Lee ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Ct Angiography ◽  
Low Dose ◽  
Lower Extremities ◽  
Comparison Study ◽  
Low Dose Ct

Effects of Projections on Radiation Dose for and Image Quality of Chest Digital Radiography for Children

2021 ◽  
Vol 17 ◽  
Author(s):  
Hongrong Xu ◽  
Bo Liu ◽  
Jinhua Cai ◽  
Huan Zheng ◽  
Helin Zheng ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Image Quality ◽  
Radiation Dose ◽  
Body Mass ◽  
Digital Radiography ◽  
Old Patients ◽  
Dose Area Product ◽  
The Impact ◽  
Field Area

Background: Until now few studies have specially validated whether the sex, body mass index, or imaging projections of pediatric patients undergoing chest digital radiography (DR) affect the radiation dose and image quality. Introduction: To investigate the impact of different photography positions on radiation dose for and image quality of chest DR for 3-4-year-old children. Method: One-hundred twenty 3-4-year-old patients who required chest DR were included. The patients were divided into 3 groups, with 40 patients in each group: supine anterior-posterior projection (APP), standing APP and posterior-anterior projection (PAP). The dose area product (DAP) and entrance surface dose (ESD) values for every patient were recorded after each exposure. The visual grading analysis score (VGAS) was used to evaluate image quality. Result: The DAP and ESD values for the standing PAP and APP groups were significantly lower than those for the supine APP group (0.19 ± 0.04 dGy cm2 and 0.05 ± 0.01 mGy vs 0.25 ± 0.05 dGy cm2 and 0.08 ± 0.01 mGy, P<0.05, respectively). Additionally, the VGAS for the standing APP group was significantly lower than those for the standing PAP and supine APP groups (28.58 ± 0.96 vs 29.08 ± 0.94 and 29.03 ± 0.80, P<0.05, respectively), whereas the pulmonary field area for the standing PAP group was significantly higher than those for the standing and supine APP groups (118.95 ± 16.81 cm2 vs 105.65 ± 14.76 cm2 and 105.24 ± 16.32 cm2, P<0.05, respectively). However, there were no statistically significant differences in DAP, ESD, VGAS, pulmonary field area and body mass index between the male and female patients in the three groups (P>0.05, respectively). Conclusion: The standing PAP should be the first projection choice for chest DR for 3-4-year-old children; compared with the supine and standing APP, the standing PAP may improve image quality and decrease the required radiation dose.

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