The purpose of this study was to evaluate seven digital cameras for their ability to adequately capture quality radiographic images and their relative cost effectiveness. Radiographs of line pair (LP) phantoms (ranging from 0.6 to 16.6 LP/mm) and a 20-step contrast phantom were photographed at a near distance of 30.0 cm and a far distance (determined for each camera) at which a full 14 x 17 in film filled the viewfinder. Of the seven cameras tested, the Canon EOS-D30 consistently performed the best in LP/mm resolved (7.7 at close distance, 1.4 at far distance) and in contrast latitude (all 20 steps at both close and far distances). The Canon EOS-D30, determined to be the best camera used in this study for photographing radiographic images, is also the most expensive camera that was used. Two cameras, the Nikon Coolpix 995 and the Sony DSC-F707, were very close to the Canon in performance at considerably less cost. Certain inexpensive cameras may not be acceptable choices for teleradiology.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1740-8261.2004.04055.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A comparison of the accuracy and feasibility of a low-cost mobile application versus higher-cost handheld 3D scanner for digital ear prosthetics.
ANZ J Surg
December 2024
Royal Prince Alfred Institute of Academic Surgery, Sydney Local Health District, Sydney, New South Wales, Australia.
Background: Facial prosthetics are an important means to rehabilitate patients with congenital or acquired facial defects. However, with a time-consuming manual workflow and workforce shortage, access to facial prosthetics is limited in Australia and worldwide, especially for rural and remote patients. Optical 3D scanning has been increasingly integrated in digitizing data.
View Article and Find Full Text PDFMulti-angle acquisition and 3D composite reconstruction for organ-targeted PET using planar detectors.
Med Phys
December 2024
Department of Physics, Lakehead University, Thunder Bay, Ontario, Canada.
Background: This study investigates a multi-angle acquisition method aimed at improving image quality in organ-targeted PET detectors with planar detector heads. Organ-targeted PET technologies have emerged to address limitations of conventional whole-body PET/CT systems, such as restricted axial field-of-view (AFOV), limited spatial resolution, and high radiation exposure associated with PET procedures. The AFOV in organ-targeted PET can be adjusted to the organ of interest, minimizing unwanted signals from other parts of the body, thus improving signal collection efficiency and reducing the dose of administered radiotracer.
View Article and Find Full Text PDFMorphological and Molecular Characterization of Tick Species Infesting Cattle in South Africa.
Vet Sci
December 2024
College of Agriculture & Environmental Sciences, University of South Africa, Private Bag X6, Roodepoort 1710, South Africa.
Ticks are a significant threat to livestock globally, with certain species displaying distinct host preferences at various developmental stages. Accurate species-level identification is essential for studying tick populations, implementing control strategies, and understanding disease dynamics. This study evaluated ticks infesting cattle across six provinces in South Africa using morphological and molecular methods.
View Article and Find Full Text PDFOptical Flow Sensor with Fluorescent-Conjugated Hyperelastic Pillar: A Biomimetic Approach.
Biomimetics (Basel)
November 2024
Ocean and Maritime Digital Technology Research Division, Korea Research Institute of Ships and Ocean Engineering, Daejeon 34103, Republic of Korea.
Although the Doppler velocity log is widely applied to measure underwater fluid flow, it requires high power and is inappropriate for measuring low flow velocity. This study proposes a fluid flow sensor that utilizes optical flow sensing. The proposed sensor mimics the neuromast of a fish by attaching a phosphor to two pillar structures (A and B) produced using ethylene propylene diene monomer rubber.
View Article and Find Full Text PDFDMFT-Related Dental Plaque Scoring by Using Different Imaging Systems.
J Esthet Restor Dent
December 2024
Department of Restorative Dentistry, Faculty of Dentistry, Marmara University, Istanbul, Turkiye.
Objective: This study aimed to compare dental plaque scores measured using clinical examination and different imaging methods.
Materials And Methods: Twenty-eight volunteers were included in the study and divided into two groups according to DMFT (D: Decayed, M: Missing, F: Filling, T: Teeth) scores (under 3 and over 10). Dental plaque on anterior labial surfaces' was scored using clinical visual examination with/without staining and different imaging systems (Digital photography, intraoral digital scanning, FluoreCam).
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!