Multiple contrast FSE approach to black blood angiography with redundant and supplementary vascular information

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United States of America Patent

PATENT NO 6340887
SERIAL NO

09400228

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Abstract

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A black blood magnetic resonance angiogram is produced by exciting dipoles (52) and repeatedly inverting the resonance (54.sub.1, 54.sub.2, . . . ) to produce a series of magnetic resonance echoes (56.sub.1, 56.sub.2, . . . ). Early echoes (e.g., (56.sub.1, . . . , 56.sub.8)) are more heavily proton density weighted than later echoes (e.g., (56.sub.9, . . . , 56.sub.16)) which are more heavily T2 weighted. The magnetic resonance echoes are received and demodulated (38) into a series of data lines. The data lines are sorted (60) between the more heavily proton density weighted data lines and T2 weighted data lines which are reconstructed into a proton density weighted image representation and a T2 weighted image representation. The proton density weighted and T2 weighted image representations are combined (90) to emphasize the black blood from the T2 weighted images and the static tissue from the proton density weighted image. The combined image is a black blood magnetic resonance angiogram. The production of the angiogram is time efficient and displays enhanced vessel depiction.

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Patent Owner(s)

Patent OwnerAddress
PICKER INTERNATIONAL INC595 MINER ROAD HIGHLAND HEIGHTS OH 44143

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lin, Jian Solon, OH 246 3476
Liu, Kecheng Solon, OH 29 677
Margosian, Paul M Lakewood, OH 11 301

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