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. Purpose: 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. Material and 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.

[1]  Michael Sandborg,et al.  Evaluation of image quality of lumbar spine images: a comparison between FFE and VGA. , 2005, Radiation protection dosimetry.

[2]  Magnus Båth,et al.  Nodule detection in digital chest radiography: effect of system noise. , 2005, Radiation protection dosimetry.

[3]  E Samei,et al.  Detection of subtle lung nodules: relative influence of quantum and anatomic noise on chest radiographs. , 1999, Radiology.

[4]  Patrik Sund,et al.  Comparison of visual grading analysis and determination of detective quantum efficiency for evaluating system performance in digital chest radiography , 2004, European Radiology.

[5]  E. Samei,et al.  Dose dependence of mass and microcalcification detection in digital mammography: free response human observer studies. , 2007, Medical physics.

[6]  P. Vock,et al.  Influence of cassette type on the DQE of CR systems. , 2006, Medical physics.

[7]  Anders Tingberg,et al.  Nodule detection in digital chest radiography: introduction to the RADIUS chest trial. , 2005, Radiation protection dosimetry.

[8]  Magnus Båth,et al.  Nodule detection in digital chest radiography: part of image background acting as pure noise. , 2005, Radiation protection dosimetry.

[9]  F R Verdun,et al.  A comparison of the performance of digital mammography systems. , 2007, Medical physics.

[10]  R. Righetto,et al.  Comparison between a built-in "dual side" chest imaging device and a standard "single side" CR. , 2006, Medical physics.

[11]  Anders Tingberg,et al.  Nodule detection in digital chest radiography: summary of the RADIUS chest trial. , 2005, Radiation protection dosimetry.

[12]  Magnus Båth,et al.  Nodule detection in digital chest radiography: effect of nodule location. , 2005, Radiation protection dosimetry.

[13]  B. Schueler,et al.  Performance evaluation of a computed radiography imaging device using a typical "front side" and novel "dual side" readout storage phosphors. , 2006, Medical physics.

[14]  Christoph Hoeschen,et al.  Nodule detection in digital chest radiography: effect of anatomical noise. , 2005, Radiation protection dosimetry.

[15]  Anders Tingberg,et al.  Detectability of pathological lesions in lumbar spine radiography , 2005, SPIE Medical Imaging.

[16]  E. Samei,et al.  Effects of Anatomical Structure on Signal Detection , 2000 .

[17]  M Båth,et al.  Visual grading characteristics (VGC) analysis: a non-parametric rank-invariant statistical method for image quality evaluation. , 2007, The British journal of radiology.

[18]  A. Burgess,et al.  Human observer detection experiments with mammograms and power-law noise. , 2001, Medical physics.

[19]  P. Vock,et al.  An image quality comparison of standard and dual-side read CR systems for pediatric radiology. , 2006, Medical physics.

[20]  Jonny Hansson,et al.  An optimisation strategy in a digital environment applied to neonatal chest imaging. , 2005, Radiation protection dosimetry.

[21]  M. Ruschin,et al.  A software tool for increased efficiency in observer performance studies in radiology. , 2005, Radiation protection dosimetry.

[22]  Icrp.  ICRP Publication 60: 1990 Recommendations of the International Commission on Radiological Protection , 1991 .

[23]  Kenneth A Fetterly,et al.  Performance evaluation of a "dual-side read" dedicated mammography computed radiography system. , 2003, Medical physics.

[24]  F R Verdun,et al.  Estimation of the noisy component of anatomical backgrounds. , 1999, Medical physics.

[25]  Jonny Hansson,et al.  A conceptual optimisation strategy for radiography in a digital environment. , 2005, Radiation protection dosimetry.