Related Experiment Video
Updated: Jul 6, 2026
07:00
Diffusion Tensor Magnetic Resonance Imaging in Chronic Spinal Cord Compression
Published on: May 7, 2019
Mixed-density extradural hematomas on computed tomography-prognostic significance
Nupur Pruthi1, Anandh Balasubramaniam, Bangalore A Chandramouli
1Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Hosur Road, Bangalore 560029, India.
Surgical Neurology
|March 11, 2008
Summary
Mixed density in epidural hematomas (EDHs) on CT scans indicates a poor prognosis. This finding suggests rapid hematoma expansion, necessitating prompt and aggressive surgical intervention for better patient outcomes.
Area of Science:
- Neurosurgery
- Radiology
- Trauma Care
Background:
- Patients with low- or mixed-density blood on CT scans often have poor outcomes.
- Epidural hematomas (EDHs) can present with varying densities on computed tomography (CT).
Purpose of the Study:
- To correlate the presence or absence of mixed density within EDHs on CT scans with clinical outcomes.
- To evaluate the prognostic significance of mixed-density EDHs.
Main Methods:
- Retrospective study of 109 surgically treated patients with EDHs.
- CT scans were classified into predominantly hyperdense or mixed-density categories.
- Clinical data and outcomes were correlated with CT findings.
Main Results:
- Mixed-density EDHs were associated with lower Glasgow Coma Scale (GCS) scores (43.2% vs 23.6%).
- Mean hematoma volume was larger in the mixed-density group (72 cm³ vs 42 cm³).
- Mortality rates were significantly higher in the mixed-density group (21.6% vs 4.2%).
Conclusions:
- Mixed density in EDHs is a potent indicator of a poor prognosis.
- Mixed density suggests rapid hematoma expansion, requiring earlier and more aggressive treatment.
