DR. PHILLIP C. YANG, M.D.
Osteopathic Medicine in Palo Alto, CA
License number
California G73144
Category
Osteopathic Medicine
Type
Cardiovascular Disease
Address
Address
300 Stanford University Medical Ctr, Palo Alto, CA 94305
Phone
(650) 498-8008
(650) 724-4034 (Fax)
(650) 724-4034 (Fax)
Professional information
Phillip Chung-Ming Yang, Stanford CA
Specialties:
Internal Medicine, Cardiovascular Disease, Nephrology
Work:
Stanford Hospital and Clinics
300 Pasteur Dr, Stanford, CA 94305
300 Pasteur Dr, Stanford, CA 94305
Education:
Yale University (1989)
T-Statistic Method For Suppressing Artifacts In Blood Vessel Ultrasonic Imaging
US Patent:
2006003, Feb 9, 2006
Filed:
Jul 28, 2005
Appl. No.:
11/191311
Inventors:
David Liang - Menlo Park CA, US
Phillip Yang - Stanford CA, US
Aditya Koolwal - Potomac MD, US
Byong-Ho Park - San Jose CA, US
Phillip Yang - Stanford CA, US
Aditya Koolwal - Potomac MD, US
Byong-Ho Park - San Jose CA, US
International Classification:
A61B 8/00
US Classification:
600437000
Abstract:
A technique for enhancing the image quality in intravascular ultrasound imaging increases contrast between blood and vessel wall processes image data using a point-wise t-statistic technique. Data from an ultrasound transducer is digitized and stored in a memory buffer [. For each point in the image, a t-statistic value is derived from signal amplitude values for the same point at a sequence of previous frames [. An image is then generated and displayed using the t-statistic values for the intensity of each point []. The improvement in contrast ratio as compared to averaging techniques is most significant at highly oblique angles when contrast ratio is particularly poor in the unprocessed signal.