Tomographic scanner

A method and apparatus for examining relative movement of two masses of different radiation attenuation characteristics, separated by a boundary and moving relative to one another over a repetitive motion cycle. The masses are examined from a plurality of successive angles about a common center of r...

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Hauptverfasser:	MAIR, GARETH A, CHASE, NORMAN E, ABELE, MANLIO G
Format:	Patent
Sprache:	eng
Schlagworte:	DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE SURGERY
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creator	MAIR GARETH A CHASE NORMAN E ABELE MANLIO G
description	A method and apparatus for examining relative movement of two masses of different radiation attenuation characteristics, separated by a boundary and moving relative to one another over a repetitive motion cycle. The masses are examined from a plurality of successive angles about a common center of rotation. The object is scanned over each motion cycle from each of these angles to derive a plurality of attenuation coefficients encompassing the entire motion cycle. A plurality of differential points is calculated between adjacent scans of a single motion cycle, and a single composite image of all of these differential points is reconstructed for each individual time period of each motion cycle for display.
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The masses are examined from a plurality of successive angles about a common center of rotation. The object is scanned over each motion cycle from each of these angles to derive a plurality of attenuation coefficients encompassing the entire motion cycle. A plurality of differential points is calculated between adjacent scans of a single motion cycle, and a single composite image of all of these differential points is reconstructed for each individual time period of each motion cycle for display.</abstract><oa>free_for_read</oa></addata></record>
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subjects	DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE SURGERY
title	Tomographic scanner
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