(1) To do abdominal, pelvic and enhanced angiography CT 4-6 hours before the examination must fast, water ban, so as not to form artifacts, affecting the quality of CT images. CT inspection in other parts does not require fasting and water prohibition.
(2) Because contrast agents can cause allergies, allergy tests are required before use.
(3) Supine position is generally taken during examination, and prone position is taken in special cases or position is changed as required. In order to locate accurately, do not move during the inspection, and work with the staff to complete the inspection.
