Anders Tingberg1, David Sjöström. 1. Department of Radiation Physics, Malmö University Hospital, SE-205 02 Malmö, Sweden. anders.tingberg@rfa.mas.lu.se
Abstract
PURPOSE: To find the tube voltage that results in the highest image quality per effective dose unit for chest and pelvis radiography, respectively, using image plates. METHODS: Two anthropomorphic phantoms (chest and pelvis) were imaged with several different tube voltages. The mA s settings were chosen so that the effective dose to the phantom was the same, regardless of the tube voltage, for the two examinations, respectively. The quality of the images was evaluated by six experienced radiologists using visual grading analysis. RESULTS: For both the chest and the pelvis examinations, the image quality increased when the tube voltage was reduced compared with the standard settings (125 and 70 kV for chest and pelvis, respectively), which were used for screen-film radiography previously. CONCLUSIONS: The image quality of image plate radiography can be increased by lowering the tube voltage compared with the one that was used for screen-film radiography.
PURPOSE: To find the tube voltage that results in the highest image quality per effective dose unit for chest and pelvis radiography, respectively, using image plates. METHODS: Two anthropomorphic phantoms (chest and pelvis) were imaged with several different tube voltages. The mA s settings were chosen so that the effective dose to the phantom was the same, regardless of the tube voltage, for the two examinations, respectively. The quality of the images was evaluated by six experienced radiologists using visual grading analysis. RESULTS: For both the chest and the pelvis examinations, the image quality increased when the tube voltage was reduced compared with the standard settings (125 and 70 kV for chest and pelvis, respectively), which were used for screen-film radiography previously. CONCLUSIONS: The image quality of image plate radiography can be increased by lowering the tube voltage compared with the one that was used for screen-film radiography.
Authors: G Compagnone; M Casadio Baleni; E Di Nicola; M Valentino; M Benati; L F Calzolaio; N Oberhofer; E Fabbri; S Domenichelli; L Barozzi Journal: Radiol Med Date: 2012-10-22 Impact factor: 3.469
Authors: C S Moore; T J Wood; G Avery; S Balcam; L Needler; A Smith; J R Saunderson; A W Beavis Journal: Br J Radiol Date: 2015-01-09 Impact factor: 3.039