Title: Comparison of image quality between a digital panorama X-ray unit with a CdTe-CMOS detector and panorama Xray units with other types of digital detectors
Authors : Scheidegger, Stephan
Proceedings: SSRMP Annual Scientific Meeting 2009 : University Hospital Basel 19th and 20th of November 2009: Abstracts & Proceedings
Pages : 63
Pages to: 69
Conference details: SSRMP Annual Scientific Meeting 2009, Schweizerische Gesellschaft für Strahlenbiologie und Medizinische Physik, Basel, 19–20 November 2009
Publisher / Ed. Institution : SSRMP
Publisher / Ed. Institution: Basel
Issue Date: 2009
License (according to publishing contract) : Licence according to publishing contract
Type of review: Not specified
Language : English
Subjects : CDTE-CMOS; Digital detector; Panorama x-ray unit
Subject (DDC) : 530: Physics
616: Internal medicine and diseases
Abstract: An investigation of the image quality of 5 panoramic X-ray units was carried out for this paper. Measurement of the MTF clearly shows good resolution for the Art Plus unit (MTF(50%) = 5.61 lp / mm) compared to the average of all 5 of the units (3.44 ± 1.55 lp /mm). To investigate image noise, the ratio was calculated between average gray scale value and standard deviation in a 32 × 32 matrix ( R32x32 ). Compared to the other units, identical regions in the image are less noisy for the Art Plus unit ( 32x32 R = 92.28 and 32x32 R = 19.40 ± 11.00 for the other units). Also image displacement of a series of images was determined for the Art Plus and the Pro Max unit. The displacements were between 1-5 Pixels for both.
Departement: School of Engineering
Publication type: Conference Paper
ISBN: 3-908-125-49-9
URI: http://www.ssrpm.ch/old/2009/proceedings-2009.pdf
Appears in Collections:Publikationen School of Engineering

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