X RAY IMAGING SYSTEM WITH SCATTER RADIATION CORRECTION AND METHOD OF USING SAME

X RAY IMAGING SYSTEM WITH SCATTER RADIATION CORRECTION AND METHOD OF USING SAME

A CT scanner with scatter correction device and a method for scatter correction are provided. The method comprises positioning shields for shielding some of the CT detector elements from direct X ray radiation, while allowing scattered radiation to arrive at said shielded elements; measuring scatter...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SHAPIRO, Olga, RUIMI, David, DAFNI, Ehud
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Beschreibung
Zusammenfassung:A CT scanner with scatter correction device and a method for scatter correction are provided. The method comprises positioning shields for shielding some of the CT detector elements from direct X ray radiation, while allowing scattered radiation to arrive at said shielded elements; measuring scatter signals from said shielded elements, indicative of scattered radiation intensity; and correcting for scatter by subtracting scatter intensity values estimated from said measured scatter signals from signals measured by unshielded detector elements.