The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 25, 2012
Filed:
Apr. 27, 2009
Kecheng Liu, Solon, OH (US);
Yongming Dai, Shanghai, CN;
Tiejun Zhao, Wexford, PA (US);
Thorsten Feiweier, Poxdorf, DE;
Jing an, ShenZhen, CN;
Kecheng Liu, Solon, OH (US);
YongMing Dai, Shanghai, CN;
Tiejun Zhao, Wexford, PA (US);
Thorsten Feiweier, Poxdorf, DE;
Jing An, ShenZhen, CN;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An apparatus and method for obtaining diffusion weighted magnetic resonance images (DW-MRI) is described. The properties of the diffusion tensor in tissue are measured by applying a diffusion weighting gradient oriented along a plurality of measurement axes. The value of the magnetic field is increased by using as many of the magnetic gradient coils as are effective in contributing the gradient field strength along the axis being. In regions where the magnetic field gradient is increased, the echo time (TE) may be decreased, increasing the signal-to-noise ratio of the measurements. Alternatively, the number of measurements than are averaged to achieve a particular image quality may be decreased, reducing the patient exposure time.