VIKAS GULANI, MD
Radiology at Euclid Ave, Cleveland, OH

2011031, Dec 22, 2011

Jun 17, 2010

12/817520

Mark A. GRISWOLD - Shaker Heights OH, US
Candice BOOKWALTER - University Heights OH, US
Nicole SEIBERLICH - Shaker Heights OH, US
Vikas GULANI - Shaker Heights OH, US

CASE WESTERN RESERVE UNIVERSITY - Cleveland OH

G06K 9/40, G01R 33/48

382275, 324309

Systems, methods, and other embodiments associated with removing motion artifacts from MR images are described. One example method includes controlling an MRI apparatus to acquire a fully sampled, centric-ordered, non-interleaved, data set from an object to be imaged and controlling a Generalized Auto-Calibrating Partially Parallel Acquisition (GRAPPA) logic to produce a GRAPPA duplicate of a single partition through the data set. The method also includes computing, from the GRAPPA duplicate, a GRAPPA navigator for a phase encoding (PE) line in the single partition and computing an error between the PE line in the single partition and a corresponding PE line in the GRAPPA duplicate using the GRAPPA navigator. The method also includes selectively replacing data in the PE line in the single partition with replacement data upon determining that the error exceeds a threshold. The method may include reconstructing an MR image based, at least in part, on the single partition.

2012005, Mar 1, 2012

Sep 1, 2010

12/873395

Mark A. GRISWOLD - Shaker Heights OH, US
Matthew RIFFE - Cleveland OH, US
Stephen YUTZY - Seven Fields PA, US
Vikas GULANI - Shaker Heights OH, US
Dean NAKAMOTO - Beachwood OH, US
Daniel HSU - Shaker Heights OH, US

CASE WESTERN RESERVE UNIVERSITY - Cleveland OH

A61B 5/055

600411, 600410

Example systems, apparatus, circuits, and so on described herein concern intervention-independent scan plane control for an MRI system. A tracking device capable of being manipulated independently of an interventional device in use to treat a patient transmits position signals describing an orientation of the tracking device to an MRI system. The MRI system determines a desired scan plan that will correspond to the orientation of the tracking device and performs a diagnostic scan on the desired scan plan.

2012023, Sep 20, 2012

Mar 18, 2011

13/051044

NICOLE SEIBERLICH - Shaker Heights OH, US
Dan Ma - , US
Vikas Gulani - Shaker Heights OH, US
Mark Griswold - Shaker Heights OH, US

G01R 33/44

324307

Apparatus, methods, and other embodiments associated with NMR fingerprinting are described. One example NMR apparatus includes an NMR logic configured to repetitively and variably sample a (k, t, E) space associated with an object to acquire a set of NMR signals. Members of the set of NMR signals are associated with different points in the (k, t, E) space. Sampling is performed with t and/or E varying in a non-constant way. The varying parameters may include flip angle, echo time, RF amplitude, and other parameters. The NMR apparatus may also include a signal logic configured to produce an NMR signal evolution from the NMR signals, a matching logic configured to compare a signal evolution to a known, simulated or predicted signal evolution, and a characterization logic configured to characterize a resonant species in the object as a result of the signal evolution comparisons.

2013026, Oct 10, 2013

Sep 19, 2012

13/623104

Mark Griswold - Shaker Heights OH, US
Nicole Sieberlich - Shaker Heights OH, US
Vikas Gulani - Shaker Heights OH, US
Dan Ma - Cleveland Heights OH, US

Case Western Reserve University - Cleveland OH

G01R 33/56

324309, 324318

Apparatus, methods, and other embodiments associated with NMR fingerprinting are described. One example NMR apparatus includes an NMR logic configured to repetitively and variably sample a (k, t, E) space associated with an object to acquire a set of NMR signals. Members of the set of NMR signals are associated with different points in the (k, t, E) space. Sampling is performed with t and/or E varying in a non-constant way. The varying parameters may include flip angle, echo time, RF amplitude, and other parameters. The NMR apparatus may also include a signal logic configured to produce an NMR signal evolution from the NMR signals, and a characterization logic configured to characterize a resonant species in the object as a result of comparing acquired signals to reference signals.

2010023, Sep 23, 2010

Dec 21, 2009

12/643072

Mark A. GRISWOLD - Shaker Heights OH, US
Eric PIERRE - Cleveland Heights OH, US
Nicole SEIBERLICH - Shaker Heights OH, US
Stephen YUTZY - University Heights OH, US
Vikas GULANI - Shaker Heights OH, US
Jean TKACH - Cleveland Heights OH, US

CASE WESTERN RESERVE UNIVERSITY - Cleveland OH

G06K 9/00

382131, 382128

Systems, methods, apparatus, and other embodiments associated with reducing imaging acquisition time are described. One example method includes accessing an under-sampled data set and a library of previously acquired data sets. The method includes producing an approximation of the under-sampled data set by transforming data stored in the library. The method includes producing a sparsified data set from the approximation and the under-sampled data set and then reconstructing the sparsified data set into a sparse image using a reconstruction technique configured to reconstruct sparse data. The method includes producing a fully-sampled approximation of the under-sampled data set and producing a final reconstructed image from the sparse image and the fully sampled approximation.