SCOTT W ATLAS
Medical Practice in Princeton, NJ
License number
Pennsylvania MD033549E
Category
Medicine
Type
Medical Physician and Surgeon
Address
Address
2
Princeton, NJ 08540
Pennsylvania
Pennsylvania
Professional information
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Three Dimensional Fourier Transform, Fast Spin Echo, Black Blood Magnetic Resonance Angtography
Three Dimensional Fourier Transform, Fast Spin Echo, Black Blood Magnetic Resonance Angtography
US Patent:
5271399, Dec 21, 1993
Filed:
Nov 27, 1991
Appl. No.:
7/799359
Inventors:
John Listerud - Philadelphia PA
Scott Atlas - Princeton NJ
Scott Atlas - Princeton NJ
Assignee:
Trustees of the University of Pennsylvania - Philadelphia PA
International Classification:
A61B 5055
US Classification:
1286533
Abstract:
Methods for producing an angiograph of a body portion are disclosed as including the steps of subjecting the body portion to electromagnetic energy so as to cause a response related to the magnetization of the body portion. Fast spin echo magnetic resonance measurements are performed on a three dimensional section of the body portion to generate three dimensional intensity information. The three dimensional intensity information is thereafter processed to construct an angiograph. In a preferred embodiment magnetic resonance data is produced by generating a slice gradient, generating a z axis slab selective 90. degree. pulse, generating a z axis slab selective 180. degree. pulse, generating a first phase encoding gradient pulse for a particular K. sub. y coordinate, generating a second phase encoding gradient pulse for a particular K. sub. z coordinate, and generating an x frequency encoding gradient and reading echo signal data from the body portion resulting from the 180. degree. pulse.