Generalized measure of image quality in medical X-ray imaging

Generalized measure of image quality in medical X-ray imaging

A method for defining image quality characteristics of X-ray based medical projection imaging devices is provided. A spatial frequency-dependent signal-to-noise ratio function includes image quality parameters of spatial resolution, object contrast and noise. The detectability of an object embedded...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BATZ LOTHAR, HOHEISEL MARTIN, BERNHARDT PHILIPP, RUHRNSCHOPF ERNST-PETER
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
DIAGNOSIS
HANDLING RECORD CARRIERS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
MEDICAL OR VETERINARY SCIENCE
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
SURGERY
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Beschreibung
Zusammenfassung:A method for defining image quality characteristics of X-ray based medical projection imaging devices is provided. A spatial frequency-dependent signal-to-noise ratio function includes image quality parameters of spatial resolution, object contrast and noise. The detectability of an object embedded into a defined background, such as a cardiac guide wire in a patient is determined. An X-ray system may be defined and set up for obtaining an optimized image quality to determine the best object detectability for a given patient dose.