Local fibrinolysis and aspiration of intracerebral hematomas in rats. An experimental study using MR monitoring.

Abstract:

:Serial magnetic resonance (MR) imaging has not yet been validated in the therapy of experimental intracerebral hematomas in a rat model. It is possible to test the effect of local fibrinolysis and aspiration on the clot volume using serial magnetic resonance imaging and different MR-sequences. Experiments were carried out in 22 male Sprague-Dawley rats. Intracerebral hematoma was produced by injection of fresh autologous blood into the caudate nucleus using a double injection technique. Thirty minutes later 10 rats were treated by injecting 12 microliters of recombinant tissue plasminogen activator. MR-imaging was performed immediately after generation of the hematoma and after clot lysis. The clot volume measured in the magnetic resonance images was compared with that obtained in stained histological serial sections at the end of the experiment. Serial MR scanning demonstrated a significant reduction (p < 0.01) of hematoma volume after fibrinolysis followed by aspiration of the blood clot. The best correlation between MR- and histological volumetry was found on RF-spoiled FLASH 2D-images. This study documents the efficacy of MRI in detecting and delineating the size of acute intracerebral hematomas and its time course. Local fibrinolysis and aspiration can be simulated in an experimental rat model.

journal_name

Neurol Res

journal_title

Neurological research

authors

Deinsberger W,Hartmann M,Vogel J,Jansen O,Kuschinsky W,Sartor K,Böker DK

doi

10.1080/01616412.1998.11740530

subject

Has Abstract

pub_date

1998-06-01 00:00:00

pages

349-52

issue

4

eissn

0161-6412

issn

1743-1328

journal_volume

20

pub_type

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