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:
Mar. 19, 2019
Filed:
May. 19, 2015
Sirona Dental Systems Gmbh, Bensheim, DE;
Volker Rasche, Erbach, DE;
Stefan Wundrak, Gronau, DE;
DENTSPLY SIRONA INC., York, PA (US);
Abstract
Disclosed is a method for producing magnetic resonance tomography images (B) of at least one phase of a cyclic movement, comprising the method steps: production of raw data sets (r, . . . , rx) of the cyclic movement during a recording period (T) having radial or almost radial k-space part trajectories (k, . . . , kx); reconstruction of a series of intermediate images (z, . . . , zy), each from at least one raw data set (r, . . . , rx) with high time resolution at least for each region (region of interest, ROI) of the raw data sets (r, . . . , rx); calculation of a distance matrix (D) from the series of intermediate images (z, . . . , zy), wherein each matrix element (D) corresponds to the distance of a first intermediate image (z, . . . , zy) of the series to the first or a further intermediate image (z, . . . , zy) of the series; fitting of functions (vi, . . . , vz) to structures forming in the distance matrix (D) by means of an active contour method and reconstruction of at least one image (B) from the raw data sets (r, . . . , rx), said raw data sets corresponding to intersection (S) of the fitted curves (v, . . . , vz) with a line of the distance matrix (D).