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A non contrast brain CT scan can pick up bleeds in or around the brain. It can also detect skull fractures and calcifications within the brain. Certain tumours can also be seen without the use of contrast.
"Unremarkable" in a CT of the brain without contrast means that there are no abnormal findings or any significant issues detected in the brain images. It suggests that the brain appears normal and there are no visible signs of disease or injury.
CT Head or Brain w/o contrast
Traumatic lesions to the brain are well seen without i.v. contrast agents. In particular, traumatic hemorrhage, be it epidural, subdural, subarachnoid, parenchymal or intraventricular, is spontaneously hyperdense on CT. Theoretically, i.v. contrast would be, at best useless, at worst counterproductive.
Yes, brain tumours can show up very clearly on CT scans especially if the patient is injected with an X-ray dye.
Contrast agents are often used in CT exams.to demonstrate certain anatomic details that, otherwise, may not be seen easily. Some contrast agents are natural, such as air or water. Other times, a water-based contrast agent is administered.
CT scans with contrast, and CT scans without contrast.
There are no generally contraindicated medications after a contrast enhanced Ct Scan.
A CT Scan can image an aneurysm without a contrast injection even though it does better with a contrast agent. An MRI will require an contrast agent or an MRI/MRA.
and w/out contrast ?
b
If a contrast medium must be administered,the patient may be asked to fast from about four to six hours prior to the procedure.Pregnant women or those who could possibly be pregnant should not have a CT scan unless the diagnostic benefits outweigh.risks