ArticleDento maxillo facial radiology2020
Quantitative assessment of variation in CBCT image technical parameters related to CBCT detector lateral-offset position.
Article in Dento maxillo facial radiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- What Drives Metal Artifacts in CBCT? A Comparative Study of Detector Types and Metallic Object Configurations.Radiology research and practice · 2026Article
- Gray values and noise behavior of cone-beam computed tomography machines-an in vitro study.Dento maxillo facial radiology · 2025Article
- Sivan classification system for diagnosis of jaw lesions based on visual volumetric analysis of 3-dimensional cone-beam computed tomographic images.Scientific reports · 2024Article
- A carbon nanotube x-ray source array designed for a new multisource cone beam computed tomography scanner.Physics in medicine and biology · 2024Article
- Cone-beam computed tomography-based radiographic considerations in impacted lower third molars: Think outside the box.Imaging science in dentistry · 2023Article
- Impact of movement and motion-artefact correction on image quality and interpretability in CBCT units with aligned and lateral-offset detectors.Dento maxillo facial radiology · 2020Article
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6 authors.
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Abstract
objectivesTo assess the effect of CBCT detector position (aligned/lateral-offset) on image technical parameters (mean voxel value - MVV, standard deviation of voxel value (SDVV) distribution), comparing peripheral regions of interest (ROIs) to the central ROI in CBCT volumes.
methods40 CBCT volumes of a wax phantom were acquired in six units with aligned and/or lateral-offset detectors: Cranex 3Dx (CRA), Ortophos SL (ORT), Picasso Trio (PIC), Promax 3D Mid (PRO), Scanora 3D (SCA), and X1. Four image-acquisition protocols used an aligned detector, and four a lateral-offset detector. In each volume, 13 ROIs (12 peripheral and 1 central) were evaluated. MVV and SDVV of the peripheral ROI were compared to those of the central ROI in the volume. MVVD (the difference in percentage, between the MVV of a peripheral and the central ROI) was calculated.
resultsFor aligned-detectors, MVV increased (ORT and PRO) or decreased (CRA and X1) in the ROIs farther from the centre. For lateral-offset detectors, ROIs farther from the centre showed increased MVV. SDVV for most aligned detectors was lower, the nearer the ROI was to the centre. For lateral-offset detectors, it was lower for the peripheral ROIs, except with PIC. Range for MVVD was -32.8% to 22.8% for units with aligned detectors, and -20.7% to 69.5% for lateral-offset detectors.
conclusionLateral-offset detectors to acquire CBCT images significantly change SDVV distribution within the field-of-view, and lead to MVVD with increased range, compared to aligned detectors. This must be taken in consideration in the clinic, if voxel-value dependent measurements are to be performed.
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