Cranial computerized tomography. A radiologic-pathologic correlation

Area of Science:

• Neurology
• Radiology
• Medical Imaging

Background:

• Cranial computerized tomography (CT) is a key diagnostic tool in neurology.
• Assessing the accuracy of CT in postmortem examinations is crucial for understanding its limitations.

Purpose of the Study:

• To evaluate the diagnostic accuracy of cranial computerized tomography (CT).
• To determine the false-negative rate of CT scans performed in patients shortly before death.

Main Methods:

• Review of 123 patients who underwent cranial CT scans within two months of death.
• Analysis focused on scans performed within two weeks of death using a 160-matrix EMI head scanner.

Main Results:

• An 11% false-negative rate was observed for CT scans conducted within two weeks of death.
• Approximately one-third of lesions measuring 1 cm or larger were not detected by CT.
• Computerized tomography demonstrated high sensitivity but was not infallible.

Conclusions:

• Cranial CT is a sensitive diagnostic tool in neuroradiology.
• The study highlights the limitations of CT, particularly for smaller lesions or in the postmortem context.
• Despite its sensitivity, CT cannot definitively rule out all pathologies.