Acquisition of four dimensional magnetic resonance data during subject motion

US11609294B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Falk Uhlemann · Hamburg, DE
• Tim Nielsen · Hamburg, DE
• Jan Hendrik Wuelbern · Hamburg, DE

Key dates

• Filing date: Jan 23, 2018
• Grant date: Mar 21, 2023
• Expiry date: Feb 12, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/7285
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention provides for a magnetic resonance imaging system (100, 200) comprising a memory (148) for storing machine executable instructions (150) and pulse sequence commands (152). The pulse sequence commands are configured for acquiring a four dimensional magnetic resonance data set (162) from an imaging region of interest (109). The four dimensional magnetic resonance data set is at least divided into three dimensional data magnetic resonance data sets (400, 402, 404, 406, 408) indexed by a repetitive motion phase of the subject. The three dimensional data magnetic resonance data sets are further at least divided into and indexed by k-space portions (410, 412, 414, 416, 418, 420, 422, 424, 426, 428, 430, 432, 434, 436). The magnetic resonance imaging system further comprises a processor (144) for controlling the magnetic resonance imaging system. Execution of the machine executable instructions causes the processor during a first operational portion (310) to iteratively: receive (300) a motion signal (156) descriptive of the repetitive motion phase; acquire (302) an initial k-space portion using the pulse sequence commands, wherein the initial k-space portion is selected from…