Tomography system and method for producing a series of volume images of a vascular system

US10702220B2 · kind B2 · utility

Assignee

• Siemens Healthcare Limited · DE

Inventors

• Klaus Klingenbeck · Aufseß, DE
• Markus Kowarschik · Koblenzer Straße, DE
• Christopher Rohkohl · Hattingen, DE
• Kevin Royalty · Fitchburg, US
• Sebastian Schafer · Blomberg, DE

Key dates

• Filing date: Dec 9, 2015
• Grant date: Jul 7, 2020
• Expiry date: Feb 29, 2036

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B6/5258
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to a tomography system (TA) comprising a first (QD1) and a second (QD2) beam source-detector pair for capturing one series (A1, A2) of projection image data sets (PB1, PB2) each from one projection angle (W1, W2) each and a volume image production system (VE) for producing a series (AV) of volume images (VB) of a vascular system (GS) while taking into account first confidence values (VW1) of the first pixel values (PW1) and/or while taking into account second confidence values (VW2) of the second pixel values (PW2). The confidence value (VW1, VW2) of a pixel value (PW1, PW2) depends on a pixel-specific traversing length (L) that a projection beam (PS1, PS2) traverses on a path through parts (Gi) of the vascular system (GS) from the first (Q1) or the second (Q2) beam source to a pixel-specific sensor element (S) of the associated first (D1) or second (D2) detector. The invention further relates to a corresponding method (100) for producing a series (AV) of volume images (VB) of a vascular system (GS).