All jewelry or metal in the x-ray field will be removed and placed in
(d) Describe the scanning machine and explain it will move back and
forth close to the patient's head.
(e) Explain that the procedure is painless and that the radiation poses
no danger to the patient or visitors.
(f) A radioactive drug will be injected intravenously at least one hour
before the scan begins.
Explain to the patient events that will occur during the brain scanning
(a) The patient will be transported to the nuclear medicine department.
(b) Films will be taken of the brain at various time intervals.
(c) The patient can expect to be in the nuclear medicine department at
least an hour and a half.
Explain to the patient events that will occur after the brain scan.
(a) Patient will be transported back to his/her room.
(b) Physician will report the results of the brain scan to the patient
2-21. CEREBRAL ANGIOGRAPHY
a. A cerebral angiogram is a radiographic examination of the cerebral
vasculature after injection of a contrast medium. Common injection sites are the
carotid, brachial, and femoral arteries.
b. Diagnostic uses for cerebral angiography.
To detect cerebrovascular abnormalities.
(2) To study vascular displacement caused by tumor, hematoma, edema,
arterial spasm, or increased intracranial pressure.
(3) To locate surgical clips applied to blood vessels during surgery and to
evaluate the postoperative status of the vessels.