ERIC CHRISTOPHER EHMAN, M.D.
Radiology at 1 St, Rochester, MN

License number
Minnesota 60201
Category
Radiology
Type
Diagnostic Radiology
Address
Address 2
200 1St St SW, Rochester, MN 55905
751 S Bascom Ave, San Jose, CA 95128
Phone
(507) 284-2511
(408) 885-5110

Professional information

Eric Ehman Photo 1

Shear Mode Pressure-Activated Driver For Magnetic Resonance Elastography

US Patent:
2011002, Feb 3, 2011
Filed:
Jul 30, 2010
Appl. No.:
12/847712
Inventors:
Eric C. Ehman - Rochester MN, US
Kiaran P. McGee - Rochester MN, US
Richard L. Ehman - Rochester MN, US
International Classification:
G01R 33/20
US Classification:
324318
Abstract:
A magnetic resonance elastography (“MRE”) driver that can produce shear waves in a subject without relying on mode conversion of longitudinal waves is disclosed. More specifically, the MRE driver includes a pneumatic driver located remotely from a magnetic resonance imaging (“MRI”) system which is operable in response to an applied electrical current to oscillate, a pressure-activated driver that is positioned on a subject in the MRI system, and a tube that is in fluid communication, at one end, with the pneumatic driver. The pressure-activated driver includes a base plate and a driver plate having a region between them that receives the tube. Oscillations of the pneumatic driver produce a pressure wave in the tube that causes the driver plate to vibrate. The driver plate rests against the subject of interest to apply a corresponding shear oscillatory force to the subject during the MRE examination.


Eric C Ehman Photo 2

Dr. Eric C Ehman, San Jose CA - MD (Doctor of Medicine)

Specialties:
Diagnostic Radiology
Address:
751 S Bascom Ave, San Jose 95128
(408) 885-5110 (Phone)
Languages:
English
Education:
Medical School
Mayo Medical School
Graduated: 2011