PubMed Health⌕ Search
Home/Archive/PubMed

PubMed · 10299566

Digital hardware in radiography and fluoroscopy.

R G Gould
View original source ↗Export metadata ↓

Abstract

Computer hardware associated with digital radiographic and digital fluoroscopic systems commonly includes an analog-to-digital converter, an image processor, a digital disk, and a digital display device. This article reviews the features of these components, highlighting their effect on image quality and system performance.

Explore related subjects

Analog-Digital ConversionDiagnosis, Computer-AssistedFluoroscopyRadiographic Image EnhancementRadiographyUnited StatesJournal Article

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

R G Gould. Digital hardware in radiography and fluoroscopy.. https://pubmed.ncbi.nlm.nih.gov/10299566/

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2006

A user-friendly PC-based data acquisition and analysis system for respirometric investigations.

We have developed an easy-to-use computer-based system for recording, displaying, storing and analyzing signals generated by Clark-type oxygen electrodes. A user-friendly interface of Windows-based program BioMed significantly increases the productivity of investigations. It allows to process, control, present and archive the experimental data in real time. A 12-bit analog-to-digital-converter, analog and digital filters, a possibility to zoom the obtained respiratory curves and calculation of the respiration rates by a linear regression method increase the resolution of the estimated oxygen consumption rates. The new system enables to register even small changes, such as 3-5 ngatoms O/min, in respiration rates of biological objects -- enzymes, mitochondria and permeabilized muscle fibers. The system has been developed and is regularly used for the respirometric investigations at the Laboratory of Biochemistry, Institute for Biomedical Research, Kaunas University of Medicine.

Analog-Digital Conversion↗
PubMed2006

Elimination of depth degeneracy in optical frequency-domain imaging through polarization-based optical demodulation.

A novel optical frequency-domain imaging system is demonstrated that employs a passive optical demodulation circuit and a chirped digital acquisition clock derived from a voltage-controlled oscillator. The demodulation circuit allows the separation of signals from positive and negative depths to better than 50 dB, thereby eliminating depth degeneracy and doubling the imaging depth range. Our system design is compatible with dual-balanced and polarization-diverse detection, important techniques in the practical biomedical application of optical frequency-domain imaging.

Analog-Digital Conversion↗