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Computerized tomographic enhancement patterns in cerebral infarction

L A Weisberg

    Archives of Neurology
    |January 1, 1980
    PubMed
    Summary
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    Drip infusion contrast computerized tomography (CT) significantly improves enhancement detection in cerebral infarction patients compared to bolus injection. This enhancement, visible weeks after stroke onset, aids in diagnosing brain infarction.

    Area of Science:

    • Neurology
    • Radiology
    • Medical Imaging

    Background:

    • Cerebral infarction diagnosis relies on imaging techniques.
    • Intravenous contrast computerized tomography (CT) is a key diagnostic tool.
    • Optimal contrast administration protocols for CT in cerebral infarction require investigation.

    Purpose of the Study:

    • To compare the efficacy of bolus injection versus drip infusion of iodinated contrast material for detecting enhancement in cerebral infarction using CT.
    • To characterize the temporal profile and patterns of contrast enhancement in patients with cerebral infarction.

    Main Methods:

    • Two hundred patients with cerebral infarction underwent intravenous contrast CT.
    • Group 1 (100 patients): Received a bolus injection of 50 mL of 60% iodinated contrast material.

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  • Group 2 (100 patients): Received a drip infusion of 300 mL of 30% iodinated contrast material.

    • Main Results:

    • Enhancement was observed in only 5% of patients receiving bolus contrast, compared to 65% receiving drip infusion contrast.
    • Contrast enhancement typically appeared between the first and fourth week post-neurological abnormality onset.
    • Specific enhancement patterns, including deep gray matter and gyral enhancement, were highly indicative of infarction.

    Conclusions:

    • Drip infusion contrast administration is significantly more effective than bolus injection for detecting enhancement in cerebral infarction via CT.
    • Observed contrast enhancement patterns can be specific indicators for cerebral infarction.
    • Follow-up CT demonstrated resolution of enhancement within three weeks, aiding in diagnosis confirmation.