Ultra-low-dose photon-counting CT of paranasal sinus

• Verfasst von: Kaatsch, Hanns Leonhard [VerfasserIn]
• Verfasst von: Fulisch, Florian [VerfasserIn]
• Verfasst von: Dillinger, Daniel [VerfasserIn]
• Verfasst von: Kubitscheck, Laura [VerfasserIn]
• Verfasst von: Becker, Benjamin V [VerfasserIn]
• Verfasst von: Piechotka, Joel [VerfasserIn]
• Verfasst von: Brockmann, Marc A [VerfasserIn]
• Verfasst von: Froelich, Matthias F. [VerfasserIn]
• Verfasst von: Schönberg, Stefan [VerfasserIn]
• Verfasst von: Overhoff, Daniel [VerfasserIn]
• Verfasst von: Waldeck, Stephan [VerfasserIn]
• Titel: Ultra-low-dose photon-counting CT of paranasal sinus
• Titelzusatz: an in vivo comparison of radiation dose and image quality to cone-beam CT
• Verf.angabe: Hanns Leonhard Kaatsch, MD, Florian Fulisch, MD, Daniel Dillinger, MD, Laura Kubitscheck, MD, Benjamin V. Becker, MD, Joel Piechotka, MSc, Marc A. Brockmann, MSc, Matthias F. Froelich, MD, Stefan O. Schoenberg, MD, Daniel Overhoff, Stephan Waldeck, MD
• E-Jahr: 2024
• Jahr: February 2024
• Umfang: 6 S.
• Illustrationen: Illustrationen
• Fussnoten: Online veröffentlicht: 13. Dezember 2023 ; Gesehen am 15.01.2025
• Titel Quelle: Enthalten in: Dentomaxillofacial radiology
• Ort Quelle: [Oxford] : Oxford University Press, 1972
• Jahr Quelle: 2024
• Band/Heft Quelle: 53(2024), 2 vom: Feb., Seite 103-108
• ISSN Quelle: 1476-542X
• DOI: doi:10.1093/dmfr/twad010
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1914630076

Abstract

This study investigated the differences in subjective and objective image parameters as well as dose exposure of photon-counting CT (PCCT) compared to cone-beam CT (CBCT) in paranasal sinus imaging for the assessment of rhinosinusitis and sinonasal anatomy.This single-centre retrospective study included 100 patients, who underwent either clinically indicated PCCT or CBCT of the paranasal sinus. Two blinded experienced ENT radiologists graded image quality and delineation of specific anatomical structures on a 5-point Likert scale. In addition, contrast-to-noise ratio (CNR) and applied radiation doses were compared among both techniques.Image quality and delineation of bone structures in paranasal sinus PCCT was subjectively rated superior by both readers compared to CBCT (P < .001). CNR was significantly higher for photon-counting CT (P < .001). Mean effective dose for PCCT examinations was significantly lower than for CBCT (0.038 mSv ± 0.009 vs. 0.14 mSv ± 0.011; P < .001).In a performance comparison of PCCT and a modern CBCT scanner in paranasal sinus imaging, we demonstrated that first-use PCCT in clinical routine provides higher subjective image quality accompanied by higher CNR at close to a quarter of the dose exposure compared to CBCT.