Method for geometrical characterisation of the airways of a lung by MRI

US11361429B2 · kind B2 · utility

Assignees

• UNIVERSITÉ DE BORDEAUX · FR
• L'INSTITUT POLYTECHNIQUE DE BORDEAUX · FR
• CENTRE HOSPITALIER UNIVERSITAIRE DE BORDEAUX · FR
• CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR
• Institut National de la Sante et de la Recherche Medicale (INSERM) · FR

Inventors

• Gael Dournes · Bordeaux, FR
• Fabien Baldacci · Pessac, FR
• Francois Laurent · Yverdon-les-Bains, CH
• Patrick Berger · Steffisburg, CH

Key dates

• Filing date: May 29, 2017
• Grant date: Jun 14, 2022
• Expiry date: Dec 18, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30061
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

An MRI method is disclosed for the geometrical characterisation of pulmonary airways on the basis of a first tridimensional image of at least one bronchus of a bronchial tree and includes: acquiring a first MRI image, an MRI sequence being synchronised with a respiratory frequency; filtering the first image; segmenting a portion of the filtered image including the contours of the bronchial tree and its inner volumetric portion; estimating at least one plane of cut of a bronchus; generating at least one image slice of a bronchus; estimating, for each image slice, an area contained within the bronchial wall and/or a bronchial wall thickness.