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FIG 2. Intraaneurysmal and systemic pressure measurements (± standard error of mean) obtained before and after coiling. The amount and shape of the pressure waves were not significantly different before and after coil embolization. (x axis, each time interval = 10–1 s)
A, Circulating fluid, 0.9% saline.
B, Circulating fluid, heparinized blood.
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