Zobrazeno 1 - 10
of 37
pro vyhledávání: '"B.J. Oosterveld"'
Publikováno v:
Life Sciences. 54:1815-1823
This study evaluates whether irradiation inhibits responses to pain in an animal model. We found that irradiation with doses of 10 Gy, 15 Gy and 17.5 Gy of the lumbar enlargement of the spinal cord inhibits the behavioural responses to the stimulus o
Publikováno v:
Ultrasound in Medicine & Biology. 19:21-25
Quantitative acoustic parameters and image texture parameters were used in a linear discriminant analysis. This analysis was applied to detect retrospectively the classes of diffuse liver disease against a population of normal livers. Three different
Publikováno v:
Investigative Radiology. 28:1-6
RATIONALE AND OBJECTIVES The detectability of diffuse liver diseases by quantitative echography was retrospectively investigated using scans of patients with known pathologic findings (n = 103) and of normal subjects (n = 129). The authors determined
Publikováno v:
Ultrasound in Medicine & Biology. 17:857-867
The values of acoustic and image texture parameters were estimated from liver scans of healthy subjects. The values were obtained after appropriate preprocessing of the radio frequency echograms by an on-line computerized system. The preprocessing co
Publikováno v:
Ultrasonic Imaging. 12:17-34
The echo signal obtained from a homogenous and isotropically scattering medium can be described as a Poisson time series which is convolved with the transmission pulse of the transducer. The probability density function (pdf) of this signal approxima
Publikováno v:
Ultrasound in medicinebiology. 19(1)
Radio frequency (RF) echograms were acquired from human subjects without liver pathology (n = 126), who were in the range of 20 to 84 years of age. After appropriate correction for the equipment settings and performance characteristics, acoustospectr
Publikováno v:
Physics in medicine and biology. 36(8)
A study was performed to find and test quantitative methods of analysing echographic signals for the differentiation of diffuse liver diseases. An on-line data acquisition system was used to acquire radiofrequency (RF) echo signals from volunteers an
Publikováno v:
Ultrasonic imaging. 13(1)
In this study, the estimation of ultrasound parameters is evaluated for in vivo differentiation of intraocular melanomas. For this purpose, both tissue and image parameters of the ultrasound signal are considered. These parameters comprised, respecti
Publikováno v:
Ultrasonic Imaging. 13:203-204
Publikováno v:
Ultrasonic Imaging. 10:171-195
In search of the optimal display of echographic information for the detection of focal lesions, a systematic study was performed considering a wide range of gray level transforms (i.e., lookup tables). This range comprised power functions of the echo