Image sharpening improves the visibility of reference points on low-dose lateral cephalometric radiographs: a phantom study.

Λεπτομέρειες βιβλιογραφικής εγγραφής
Τίτλος:	Image sharpening improves the visibility of reference points on low-dose lateral cephalometric radiographs: a phantom study.
Συγγραφείς:	Kojima I; Department of Dental Informatics and Radiology, Tohoku University Graduate School of Dentistry, Sendai, Miyagi 980-8575, Japan.; Department of Medical AI Center, Tohoku University Hospital, Sendai, Miyagi 980-8574, Japan., Ito A; Department of Orthodontics and Dentofacial Orthopedics, Tohoku University Graduate School of Dentistry, Sendai, Miyagi 980-8575, Japan., Shimada Y; Department of Dental Informatics and Radiology, Tohoku University Graduate School of Dentistry, Sendai, Miyagi 980-8575, Japan., Tagaino Watanabe N; Department of Dental Informatics and Radiology, Tohoku University Graduate School of Dentistry, Sendai, Miyagi 980-8575, Japan., Ikawa M; Department of Radiological Technology, Tohoku University Hospital, Sendai, Miyagi 980-8574, Japan., Onodera S; Department of Radiological Technology, Tohoku University Hospital, Sendai, Miyagi 980-8574, Japan., Kanetaka H; Department of Orthodontics and Dentofacial Orthopedics, Tohoku University Graduate School of Dentistry, Sendai, Miyagi 980-8575, Japan., Iikubo M; Department of Dental Informatics and Radiology, Tohoku University Graduate School of Dentistry, Sendai, Miyagi 980-8575, Japan.; Department of Medical AI Center, Tohoku University Hospital, Sendai, Miyagi 980-8574, Japan.
Πηγή:	Dento maxillo facial radiology [Dentomaxillofac Radiol] 2026 Oct 01; Vol. 55 (7), pp. 812-819.
Τύπος έκδοσης:	Journal Article
Γλώσσα:	English
Στοιχεία περιοδικού:	Publisher: Oxford University Press Country of Publication: England NLM ID: 7609576 Publication Model: Print Cited Medium: Internet ISSN: 1476-542X (Electronic) Linking ISSN: 0250832X NLM ISO Abbreviation: Dentomaxillofac Radiol Subsets: MEDLINE
Imprint Name(s):	Publication: January 2024- : [Oxford] : Oxford University Press Original Publication: Erlangen, Germany : University Press Erlangen
Ιατρικοί όροι (MeSH):	Cephalometry/methods , Radiographic Image Enhancement/methods , Anatomic Landmarks/diagnostic imaging , Phantoms, Imaging, Humans ; Radiation Dosage
Περίληψη:	This phantom study aimed to determine whether a novel non-artificial intelligence image-sharpening approach improves the visibility of reference points on low-dose lateral cephalometric radiographs. Lateral cephalometric radiographs were obtained using an adult human bone phantom at 100% of the routine dose. Low-dose imaging was performed using 60%, 40%, and 20% of the routine dose. Each low-dose image underwent a 2-level image-sharpening process using the Medical Image Enhancer software. Six reviewers evaluated the visibility of the 5 reference points in the first and second sets of sharpened and 100% radiation-dose images. Using Scheffé's method of paired comparisons, odds ratios (ORs) were reported as relative values for a standard cephalometric radiograph (100% radiation dose) to compare the visibility of reference points among imaging conditions. For the first set of mildly sharpened 60%-dose images, the ORs for the 4 reference points were >1.0, Point A (OR 1.12, P = .83), Nasion (OR 2.26, P = .11), posterior nasal spine (OR 2.35, P = .1), and incisal edge of the maxillary central incisor (OR 1.35, P = .53), indicating visibility comparable to or better than the 100%-dose images. For the second set of markedly sharpened images, rated visibility was significantly higher for all reference points at 60% and 40% doses and for several reference points at 20% dose. Image-sharpening algorithms improved the visibility of reference points on low-dose phantom radiographs, suggesting their technical feasibility as a post-acquisition approach for dose-reduced cephalometric imaging. (© The Author(s) 2026. Published by Oxford University Press on behalf of the British Institute of Radiology and the International Association of Dentomaxillofacial Radiology.)
References:	Ann ICRP. 2007;37(2-4):1-332. (PMID: 18082557) Radiology. 2004 May;231(2):506-14. (PMID: 15128995) Dentomaxillofac Radiol. 2015;44(4):20140260. (PMID: 25564885) Eur Arch Paediatr Dent. 2020 Aug;21(4):463-508. (PMID: 32557182) Int J Radiat Biol. 2013 Jan;89(1):2-8. (PMID: 22856587) Dentomaxillofac Radiol. 2011 Dec;40(8):471-5. (PMID: 22065795) Eur Radiol. 2002 Feb;12(2):385-90. (PMID: 11870439) Dentomaxillofac Radiol. 2007 Jan;36(1):39-44. (PMID: 17329587) J Clin Med. 2022 Sep 26;11(19):. (PMID: 36233534) Sci Rep. 2025 Apr 02;15(1):11351. (PMID: 40175386) Sci Rep. 2023 Feb 16;13(1):2758. (PMID: 36797311) Radiat Prot Dosimetry. 2012 Jan;148(1):58-64. (PMID: 21335329) J Prosthet Dent. 2018 Dec;120(6):927-933. (PMID: 30166247) J Clin Med. 2022 Apr 07;11(8):. (PMID: 35456168)
Grant Information:	24K13234 Japan Society for the Promotion of Science; 24K02639 Japan Society for the Promotion of Science
Contributed Indexing:	Keywords: cephalometric radiography; image processing; radiation dose reduction
Entry Date(s):	Date Created: 20260706 Date Completed: 20260930 Latest Revision: 20261001
Update Code:	20261001
DOI:	10.1093/dmfr/twag047
PMID:	42405564
Βάση Δεδομένων:	MEDLINE

Full Text Finder

Περιγραφή
ISSN:	1476-542X
DOI:	10.1093/dmfr/twag047