Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1997-06-20
1999-01-12
Smith, Ruth S.
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
600419, 600509, A61B 5055
Patent
active
058579702
ABSTRACT:
A subtraction MRA image is formed by subtracting a mask image formed from diastolic MR image data from an angiographic image formed from systolic MR image data. To permit acquisition of diastolic MR image data during regurgitation of arterial bloodflow, a saturation slab is established immediately adjacent the slice of interest and slightly overlapping it on its arterially downstream side.
REFERENCES:
patent: 5320099 (1994-06-01), Roberts et al.
patent: 5348012 (1994-09-01), Kojima
patent: 5492124 (1996-02-01), Purdy
Jay Mark H.
Siemens Medical Systems Inc.
Smith Ruth S.
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