Diagnostic usefulness of chest computed radiography—Film versus cathode-ray tube images
نویسندگان
چکیده
منابع مشابه
The Channel Multiplier Cathode-ray Tube
This paper describes a new approach to cathode-ray tube design aimed at achieving a significant depth reduction. The addressing function of the electron beam has been separated from the light generation process by a channel electron multiplier array, allowing the use of a novel deflection system based on a low-power scanning beam. Monochrome versions of the thin tube have been made with a 12" (...
متن کاملThe use of chest computed tomography versus chest X-ray in patients with major blunt trauma.
INTRODUCTION Computed tomography (CT) scans are often used in the evaluation of patients with blunt trauma. This study identifies the clinical features associated with further diagnostic information obtained on a CT chest scan compared with a standard chest X-ray in patients sustaining blunt trauma to the chest. METHODS A 2-year retrospective survey of 141 patients who attended a Level 1 trau...
متن کاملA Cathode Ray Tube creates images by shooting an electron gun at wall of phosphors
This application claims an invention which was disclosed in Provisional Application Number 60/108,100, filed November 12, 1998, entitled "Desktop Projector". The benefit under 35 USC §119(e) of the United States provisional application is hereby claimed.. 5 This application is also a continuation-in-part of Serial No. 09/323,651, filed June 1, 1999, which is also a PCT International Application...
متن کاملVisual Evoked Potential Using Head-Mounted Display Versus Cathode Ray Tube: A Pilot Study
OBJECTIVE To present a new stimulation method based on the use of a head-mounted display (HMD) during pattern reversal visual evoked potential (PR-VEP) testing and to compare variables of HMD to those of conventional cathode ray tube (CRT). METHODS Twenty-three normal subjects without visual problems were recruited. PR-VEPs were generated using CRT or HMD stimuli. VEP outcome measures include...
متن کاملLuminance artifacts of cathode-ray tube displays for vision research.
Phosphor persistence, video bandwidth, DC restoration and high-voltage regulation affect the appearance of images presented on cathode-ray tubes (CRTs), potentially resulting in differences between nominal and actual stimuli. We illustrate these effects by measuring physical parameters of horizontal and vertical static and counter-phase flickering gratings, and we illustrate problems for vision...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Digital Imaging
سال: 1995
ISSN: 0897-1889,1618-727X
DOI: 10.1007/bf03168063