Contemporary real-time ultrasound images are constructed of graduated shades of gray. The practical range of echo contrast than can be depicted is therefore limited. The use of color as well as intensity would potentially increase the amount of information available and possibly augment tissue textu
Gray scale performance of displays for dynamic ultrasound imaging
โ Scribed by M. G. Maginness
- Publisher
- John Wiley and Sons
- Year
- 1977
- Tongue
- English
- Weight
- 485 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0091-2751
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
Methods used to convert the output of diagnostic ultrasound dynamic imaging systems to television format are reviewed. The gray scale characteristics of a largeโscreen direct display are compared with the transfer through a display monitorโtelevision cameraโtelevision monitor chain. Available direct display devices have distinct performance limitations in this application and the transfer linearity and dynamic range of the television converter described are objectively superior. This confirmed a subjective preference of system users to view the TV display.
๐ SIMILAR VOLUMES
## Abstract A conventional B scan ultrasound unit was modified by the addition of a specially built logarithmic amplifier and a high resolution nonstorage oscilloscope, as suggested by Taylor and Carpenter. One hundred five consecutive patients submitted for radionuclide imaging of the liver were e
## Abstract The effectiveness of three methods (Campbell and Wilkin,^6^ Warsof,^3^ Warsof et al^4^) for estimating fetal weight from measurements of the abdominal circumference (AC) and biparietal diameter (BPD) has been evaluated in 125 patients studied with dynamic image ultrasound. Investigation
## Abstract ## Purpose The aim of this study was to evaluate the effectiveness of using flashโecho imaging (FEI) in the subtraction mode to assess the vascularity of small hepatocellular carcinomas (HCCs) that had been unsatisfactorily assessed with power Doppler sonography. ## Methods Between M
## Abstract White uniformity indicates the degree of uniform distribution of white color across the display screen and is one of the important inspection factors determining the image quality of a visual display unit (VDU). Experiments in which participants were confronted with 6 evaluation points