公开(公告)号：US20200293690A1

公开(公告)日：2020-09-17

申请号：US16814249

申请日：2020-03-10

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Arne EWALD ,  Tim NIELSEN ,  Karsten SOMMER ,  Irina WAECHTER-STEHLE ,  Christophe Michael Jean SCHÜLKE ,  Frank Michael WEBER ,  Rolf Jürgen WEESE ,  Jochen PETERS

IPC: G06F21/62 ,  G16H10/60 ,  G16H30/20 ,  G06N20/00

Abstract: A system (100) and computer-implemented method are provided for data collection for distributed machine learning of a machine learnable model. A privacy policy data (050) is provided defining computer-readable criteria for limiting a selection of medical image data (030) to a subset of the medical image data to obfuscate an identity of the at least one patient. The medical image data is selected based on the computer-readable criteria to obtain privacy policy-compliant training data (060) for transmission to another entity. The system and method enable medical data collection at clinical sites without requiring manual oversight, and enables such selections to be made automatically, e.g., based on a request for medical image data which may be received from outside of the clinical site.

公开(公告)号：US20190033413A1

公开(公告)日：2019-01-31

申请号：US16072940

申请日：2017-02-06

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Thomas Erik AMTHOR ,  Peter KOKEN ,  Karsten SOMMER ,  Mariya Ivanova DONEVA ,  Peter BOERNERT

IPC: G01R33/56 ,  G01R33/46 ,  G01R33/48 ,  G01R33/561

Abstract: The invention provides for a magnetic resonance imaging system (100) for acquiring magnetic resonance data (142) from a subject (118) within a measurement zone (108), wherein the magnetic resonance imaging system comprises: a processor (130) for controlling the magnetic resonance imaging system and a memory (136) for storing machine executable instructions (150, 152, 154) and pulse sequence commands (140). The pulse sequence commands for controlling the magnetic resonance imaging system to acquire the magnetic resonance data according to a magnetic resonance fingerprinting protocol. The pulse sequence commands are configured for controlling the magnetic resonance imaging system to generate an RF pulse train (300). The pulse sequence commands are configured for controlling the magnetic resonance imaging system to acquire the magnetic resonance data as multiple k-space traces. The pulse sequence commands are configured for controlling the RF pulse train to be repeated for the acquisition of each of the multiple k-space traces. The machine executable instructions causes the processor to: sequentially acquire (200) the multiple k-space traces of magnetic resonance data by controlling the magnetic resonance imaging system with pulse sequence commands and calculate (202) the abundance of each of a set of predetermined substances for k-space traces that are acquired after a predetermined number of k-space traces of the multiple k-space traces has been acquired. The abundance of each of a set of predetermined substances is determined by comparing the magnetic resonance data with a steady state magnetic resonance fingerprinting dictionary (144). The steady state magnetic resonance fingerprinting dictionary contains a listing of calculated magnetic resonance signals in response to the RF pulse train for a set of predetermined substances.