Subjective image quality in digital panoramic radiography in relation to patient exposure

Abstract Aim To compare digital panoramic images acquired for the presurgical assessment of third molars captured with a storage phosphorbased system with conventional film panoramic radiographs. Methods and Materials A total of 51 pairs of digital and conventional panoramic images, made simultaneously, were included in this study. The images were evaluated for diagnostic quality prior to third molar surgery by two experienced oral surgeons and rated with a four-point grading scale. Results Despite the fact that conventional panoramic images were rated higher than the digital images, the difference was not statistically significant. Conclusions Conventional and digital panoramic images were found to be of comparable image quality with regard to their diagnostic contribution to third molar surgery. Clinical Significance This study is contributory to understanding differences in image quality between digital and conventional panoramic radiography for certain diagnostic tasks. The lack of significant differences in image quality may be an endorsement for digital panoramic radiography. Citation Parissis N, Angelopoulos C, Mantegari S, Karamanis S, Masood F, Tsirlis A. A Comparison of Panoramic Image Quality between a Digital Radiography Storage Phosphor System and a Film-Based System. J Contemp Dent Pract [Internet]. 2010 Jan; 11(1):009-016. Available from: http://www.thejcdp.com/journal/view/ volume11-issue1-parissis.

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Clinical Evaluation of Dose Reduction on Image Quality of Panoramic Radiographs

The Journal of Contemporary Dental Practice ◽

10.5005/jcdp-9-5-34 ◽

2008 ◽

Vol 9 (5) ◽

pp. 34-41 ◽

Cited By ~ 4

Author(s):

Meryem Toraman Alkurt ◽

Likay Peker ◽

Gülten Usalan ◽

Bülent Altunkaynak

Keyword(s):

Image Quality ◽

Dose Reduction ◽

Clinical Evaluation ◽

Panoramic Radiography ◽

Panoramic Radiographs ◽

Tube Current ◽

Digital Panoramic Radiography ◽

Significant Difference ◽

Panoramic Images

Abstract Aim The purpose of this study was to evaluate the effect of tube current reduction on image quality using medium and regular intensifying screens as well as a digital system for panoramic radiography. Methods and Materials A total of 150 panoramic images of 75 patients were obtained in the study. The initial images were taken at standard exposure settings, and secondary images were exposed with the tube current reduced at different rates. Results There was no statistically significant difference (p>0.05) between the two exposures for Group 3 (the rate of dose reduction 25%) while a statistically significant difference (p<0.05) was found in Group 4 (the rate of dose reduction 50%) using medium intensifying screens for all observers. No statistically significant difference was found between the two exposures on digital panoramic images. Conclusion According to the results of this study a dose reduction of 25% was achieved for medium intensifying screens and for digital panoramic images without any loss of image quality. Clinical Significance A substantial reduction in radiation exposure can be achieved in conventional panoramic radiography using a medium intensifying screen and in digital panoramic radiography without any loss of image quality needed for radiological evaluation of anatomical structures and pathological conditions. Citation Alkurt MT, Peker I, Usalan G, Altunkaynak B. Clinical Evaluation of Dose Reduction on Image Quality of Panoramic Radiographs. J Contemp Dent Pract 2008 July; (9)5:034-041.

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The Subjective Image Quality of Conventional and Digital Panoramic Radiography Among 6 to 10 year old Children

Journal of Clinical Pediatric Dentistry ◽

10.17796/jcpd.31.2.46lx77211v483x01 ◽

2007 ◽

Vol 31 (2) ◽

pp. 109-112 ◽

Cited By ~ 3

Author(s):

N Makris ◽

K Tsiklakis ◽

K Alexiou ◽

A Vierrou ◽

Th Stefaniotis

Keyword(s):

Image Quality ◽

Rating Scale ◽

Panoramic Radiography ◽

Image Interpretation ◽

Diagnostic Image Quality ◽

Diagnostic Quality ◽

Digital Panoramic Radiography ◽

Pediatric Dentists ◽

Tooth Germs

Objectives: To compare the diagnostic quality of orthopantomographs made with the conventional unit Orthophos Siemens and the direct digital unit Planmeca 2000 cc Proline among children 6-10 years old and to investigate possible differences on image interpretation between oral radiologists and pediatric dentists. Methods: Study material included two independent groups of panoramic images (50 in each group) made with different panoramic modalities (digital, conventional). Eight observers (four pediatric dentists and four oral radiologists) evaluated all images for diagnostic quality in 12 pre-determined areas using a 4-point rating scale. Results: Digital and conventional panoramic radiography performed almost similarly as far as it concerns the specific diagnostic tasks rated with the exception of the interproximal contacts of mandibular molars where digital panoramic radiography was scored significantly higher and the periapical region of anterior mandible and anterior mandibular tooth germs where conventional panoramic radiography was found to be significantly better. Both oral radiologists and pediatric dentists graded similarly digital and conventional radiographs for a variety of diagnostic tasks. Conclusions: It can be concluded that diagnostic image quality obtained with the digital orthopantomograph unit Planmeca 2000 cc Proline was generally equal to image quality obtained with the conventional orthopantomograph unit Orthophos Plus CD. Image interpretation between oral radiologists and pediatric dentists was not substantially different

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