Is brain CT examination reliable for diagnosing brain cancer?

Can brain CT scans diagnose brain cancer? The detection rate of brain CT scans for brain tumors can reach more than 90%. It is easy to show the size, shape, number, location, density and nature of lesions, and the anatomical relationship is clear. It is currently the main diagnostic method for brain tumors. Let's take a look at what examination methods are available for brain cancer?

1. Skull plain film: intracranial hypertension, pineal gland calcification and displacement, abnormal calcification, bone destruction, enlarged internal auditory canal, enlarged sella turcica, etc.
2. Cerebral angiography: It is not a routine examination for brain tumors, but it can be used to determine the anatomical relationship between the tumor and important blood vessels, the blood supply to the tumor, and preoperative embolization.
3. CT examination: CT examination has high density resolution and can easily show the calcium, bone, fat and fluid contained in the intracranial tumor; CT can show the ventricles, cerebral cisterns, dura mater and skull, which is beneficial to the anatomical relationship between the tumor and the adjacent parts. CT contrast-enhanced scanning can understand the blood supply of the tumor and the damage to the blood-cerebrospinal fluid barrier, which is beneficial to the display and characterization of the tumor. Spiral CT makes the resolution of the coronal and sagittal reconstructed images the same as that of the axial reconstructed images. Three-dimensional imaging, segmented imaging and CT angiography improve the accuracy of CT diagnosis of intracranial tumors.