Zobrazeno 1 - 10
of 21
pro vyhledávání: '"W. H. McCartney"'
Publikováno v:
Clinical Nuclear Medicine. 20:302-305
A case study is presented in which three types of images from a Ga-67 study are compared. The Ga-67 study was performed on a patient with fever of unknown origin (FUO). Planar and SPECT images were obtained. Planar data were presented as standard 2-D
Publikováno v:
Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology. 5(5)
In recent years, there has been much interest in the clinical application of attenuation compensation to myocardial perfusion single photon emission computed tomography (SPECT) with the promise that accurate quantitative images can be obtained to imp
Publikováno v:
Chest. 97(5)
This represents the first case of an Askin's tumor demonstrated on MRI. It showed a large pleural-based mass which trapped pleural fluid in large pseudotumors. The disease was unilateral and involved the mediastinum as well. Magnetic resonance imagin
Autor:
Stephen M. Pizer, Edward V. Staab, B. C. Brenton, J. R. Perry, John B. Zimmerman, W. H. McCartney
Publikováno v:
IEEE Transactions on Medical Imaging. 7:304-312
Adaptive histogram equalization (AHE) and intensity windowing have been compared using psychophysical observer studies. Experienced radiologists were shown clinical CT (computerized tomographic) images of the chest. Into some of the images, appropria
Autor:
W. H. McCartney
Publikováno v:
JAMA: The Journal of the American Medical Association. 236:1023-1027
Publikováno v:
Journal of nuclear medicine : official publication, Society of Nuclear Medicine. 30(4)
Correction for photon attenuation in cardiac SPECT imaging using a measured attenuation distribution with an iterative expectation maximization (EM) algorithm and an iterative Chang algorithm were compared with the conventional filtered backprojectio
Publikováno v:
Journal of nuclear medicine : official publication, Society of Nuclear Medicine. 29(5)
An observer study was performed in order to evaluate several filters used in SPECT imaging. The filters were applied to the simulated projection data of a uniform activity density cylinder which contained a cold, spherical lesion, 2 cm in diameter. T
Autor:
L. M. Vincent, Stephen A. Grubb, W. H. McCartney, B. J. Awbrey, P. C. Jacobson, Roy V. Talmage
Publikováno v:
Journal of orthopaedic research : official publication of the Orthopaedic Research Society. 2(4)
This study measured radial and lumbar spine bone density in postmenopausal white female patients with nontraumatic fractures and their age-matched controls. Bone density measurements were made with a single-beam densitometer. Distal radial bone densi
Publikováno v:
Journal of computer assisted tomography. 6(3)
Publikováno v:
Journal of computer assisted tomography. 3(1)
Various combinations of window settings and displays were evaluated to determine the optimal photographic reproduction of images obtained from the Ohio-Nuclear Delta scanner to best demonstrate bony structure by computed tomography. A combination of