Correlation of 64 slice Computed Tomography Scan and Autopsy Findings of intra-cranial haemorrhages.

Autor: Priyadarshini, Neena, Monteiro, Francis N. P., Bhagavath, Prashantha, Kumar, G. Pradeep, Dsouza, Haneil L.
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Zdroj: International Journal of the A.J. Institute of Medical Sciences; Nov2013, Vol. 2 Issue 2, p107-114, 9p
Abstrakt: The increase in head injury cases, though a disturbing universal phenomenon, has a greater significance for developing countries due to a host of factors. However the development of newer imaging modalities, in conjunction with traditional clinical assessment techniques provides hope for an improvement in diagnostic and treatment methodology. Computed Tomography (CT) is said to reveal promptly, accurately and non-invasively the intra-cranial and parenchymal abnormalities in acute cranio-cerebral trauma that were previously recognized only at autopsy. Therefore the CT scan of head is indispensable in the diagnosis of the various traumatic lesions and their management and in addition it also carries important prognostic value. The present prospective study attempted to correlate Multi Slice Computed Tomography (MSCT) findings of intracranial haemorrhages with that of post-mortem examination findings of fatal head injuries. Computed Tomography Scan was done in 71 cases, of which 52 were non-operated and 19 were operated cases. The cause of head injuries in all the cases was due to Road Traffic Accident except one case, which was due to fall from height. The distribution of intracranial hemorrhages in the 67 cases revealed 22 had isolated intracranial hemorrhages and 45 cases had multiple intracranial hemorrhages. In 4 cases no lesions were detected. The correlation between autopsy and Computed Tomography Scan for various lesions of Intracranial Hemorrhage revealed 148 lesions in 67 cases, of which 92 were detected at CT Scan. In our study the sensitivity of CT Scan among the Intracranial Hemorrhages was highest for Subdural Hemorrhages (59%) and lowest for Extradural Hemorrhages (27%). The specificity of CT Scan among the Intracranial Hemorrhages was highest for Extradural Hemorrhages (94%) and lowest for detecting Subarachnoid Hemorrhages (80%). The discrepancy between the CT Scan findings and Autopsy findings seen in this study may be a result of the evolutionary and resolution process of the lesion. It can also be attributed to the artifacts of the Imaging modality (CT Scan) and the size of the lesions being lesser than that of the selected CT Scan slice thickness. We thus recommend that to reduce artefacts and enhance visualizations, techniques like special zoom cuts, thin slices, contrast enhanced and three dimensional CT Scan and repeat CT Scans be employed depending on the clinical scenario. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index