公开(公告)号：US20140232403A1

公开(公告)日：2014-08-21

申请号：US14347768

申请日：2012-09-28

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Thomas Perkins

IPC: G01R33/48 ,  A61B5/055

CPC classification number: G01R33/4828 ,  A61B5/055 ,  A61B5/4244 ,  A61B5/4872 ,  G01R33/3808 ,  G01R33/383 ,  G01R33/50

Abstract: A probe unit (100) including a magnet (102, 103) generates a static magnetic B0 field in an examination region and a RF coil (105). An input-output module (201) includes a transmitter (203) which controls the RF coil (105) to excite resonance and cause echoes (210) and a receiver (204) which demodulates and digitizes the echoes (210). A data processing module (206) includes at least one processor programmed to calculate a T2 relaxation distribution plot from a digitized echo (210) train, calculate a first area under the fat peak on the T2 distribution plot, calculate a second area under a water peak on the T2 distribution plot, and normalize the first and second area to determine a fat-to-water ratio.

Abstract translation: 包括磁体（102,103）的探针单元（100）在检查区域和RF线圈（105）中产生静态磁场B0场。 输入输出模块（201）包括控制RF线圈（105）以激发谐振并引起回波（210）的发射机（203）和对回波（210）进行解调和数字化的接收机（204）。 数据处理模块（206）包括至少一个处理器，其被编程为从数字化回波（210）列车计算T2弛豫分布图，计算T2分布图上的脂肪峰值下的第一区域，计算水下的第二区域 在T2分布图上达到峰值，并且将第一和第二区域归一化以确定脂肪与水的比例。

公开(公告)号：US09772388B2

公开(公告)日：2017-09-26

申请号：US14347768

申请日：2012-09-28

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Thomas Perkins

IPC: G01R33/48 ,  G01R33/38 ,  G01R33/50 ,  A61B5/00 ,  A61B5/055 ,  G01R33/383

CPC classification number: G01R33/4828 ,  A61B5/055 ,  A61B5/4244 ,  A61B5/4872 ,  G01R33/3808 ,  G01R33/383 ,  G01R33/50

Abstract: A probe unit (100) including a magnet (102, 103) generates a static magnetic B0 field in an examination region and a RF coil (105). An input-output module (201) includes a transmitter (203) which controls the RF coil (105) to excite resonance and cause echoes (210) and a receiver (204) which demodulates and digitizes the echoes (210). A data processing module (206) includes at least one processor programmed to calculate a T2 relaxation distribution plot from a digitized echo (210) train, calculate a first area under the fat peak on the T2 distribution plot, calculate a second area under a water peak on the T2 distribution plot, and normalize the first and second area to determine a fat-to-water ratio.

公开(公告)号：US10241182B2

公开(公告)日：2019-03-26

申请号：US14651496

申请日：2013-12-06

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christian Stehning ,  Thomas Perkins ,  Julien Senegas ,  Jochen Keupp

IPC: G01R33/483 ,  G01R33/563 ,  G01R33/565

Abstract: A magnetic resonance imaging system (1) includes at least one processor (28) configured to receive (48) diffusion weighted imaging data based on a diffusion weighted imaging sequence with magnetic gradient fields applied in different directions and with different b-values. The at least one processor (28) is further configured to detect (50) motion corrupted data present in the received imaging data based on a comparison of data redundant in the received data, and substitute (52) alternative data for detected motion corrupted data.