Clinical evaluation of a dual-side readout technique computed radiography system in chest radiography of premature neonates.
BACKGROUND
Recently, the dual-side readout technique has been introduced in computed radiography, leading to an increase in detective quantum efficiency (DQE) compared with the single-side readout technique.


OBJECTIVE
To evaluate if the increase in DQE with the dual-side readout technique results in a higher clinical image quality in chest radiography of premature neonates at no increase in radiation dose.


METHODS
Twenty-four chest radiographs of premature neonates were collected from both a single-side readout technique system and a double-side readout technique system. The images were processed in the same image-processing station in order for the comparison to be only dependent on the difference in readout technique. Five radiologists rated the fulfillment of four image quality criteria, which were based on important anatomical landmarks. The given ratings were analyzed using visual grading characteristics (VGC) analysis.


RESULTS
The VGC analysis showed that the reproduction of the carina with the main bronchi and the thoracic vertebrae behind the heart was better with the dual-side readout technique, whereas no significant difference for the reproduction of the central vessels or the peripheral vessels could be observed.


CONCLUSIONS
The results indicate that the higher DQE of the dual-side readout technique leads to higher clinical image quality in chest radiography of premature neonates at no increase in radiation dose.
Carlander
A
A
Department of Radiation Physics, Sahlgrenska Academy at Göteborg University, Göteborg, Sweden.
Hansson
J
J
Söderberg
J
J
Steneryd
K
K
Båth
M
M
D019540:Area Under Curve; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D011829:Radiation Dosage; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D013902:Radiography, Thoracic / Q000379:methods*; D012189:Retrospective Studies; D012984:Software