System and method for assessing a pulmonary image

US11657500B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Rafael Wiemker · Kisdorf, DE
• Tanja Nordhoff · Hamburg, DE
• Thomas Buelow · Großhansdorf, DE
• Axel Saalbach · Hamburg, DE
• Tobias Klinder · Uelzen, DE
• TOM BROSCH · Hamburg, DE
• TIM PHILIPP HARDER · Ahrensburg, DE
• Karsten Sommer · Hamburg, DE

Key dates

• Filing date: Dec 14, 2018
• Grant date: May 23, 2023
• Expiry date: Dec 14, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30168
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to a system for assessing a pulmonary image which allows for an improved assessment with respect to lung nodules detectability. The pulmonary image is smoothed for providing different pulmonary images (20, 21, 22) with different degrees of smoothing, wherein signal values and noise values, which are indicative of the lung vessel detectability and the noise in these images, are determined and used for determining an image quality being indicative of the usability of the pulmonary image to be assessed for detecting lung nodules. Since a pulmonary image shows lung vessels with many different vessel sizes and with many different image values, which cover the respective ranges of potential lung nodules generally very well, the image quality determination based on the different pulmonary images with different degrees of smoothing allows for a reliable assessment of the pulmonary image's usability for detecting lung nodules. The image quality is used to determine a radiation dose level to be applied for generating a next pulmonary image.