Gennifer Brandon provided 17 points and 13 rebounds for the Golden Bears (31-3), who used a ball-hawking defense to force 16 Lady Tigers turnovers and reach the NCAA Women's Tournament's Elite Eight.
Brittany Boyd added 14 points, seven assists and four steals for the victors.
Theresa Plaisance collected 15 points and hauled down 12 rebounds for sixth-seeded LSU (22-12).
Adrienne Webb added 15 points and Danielle Ballard also reached double figures with 14 for the Lady Tigers.
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