NCCT / CECT

1. NCCT OR CECT HEAD
 Introduction
 Indication
 Contraindication
 Contrast media
 Equipment
 Patient Preparation
 Technique
 After care

2. INTRODUCTION
A Computed Tomography of the head is the most common and non-
invasive diagnostic imaging procedure.
CT scan provide more details information of head injuries , stroke
brain tumors and other brain disease.
It has wide ability to answer complex clinical condition.
Because it is quick and relatively available.

3. INDICATIONS
Trauma
 Tumors.
 Congenital abnormalties.
 Intra cranial Infections.
Headache of unknown cause.
 stroke( damage of brain from stop of blood supply)
Mass

4. Cont…..
• Seizures (strong attack of an illness)
• Apnea (breathing stop)
• Syncope (loss of consciousness)
• Ataxia (lack of body balance)
• Encephalitis (inflammation in brain)
Hydrocephalus
 Suspected acute intracranial hemorrhage.
Mental status change.
Neurologic deficits
• (balloon like structure of artery)

5. CONTRAINDICATIONS
Pregnancy
 Kidney failure
 Reaction to contrast media
Patient decline consent

6. CONTRAST MEDIA
Contrast media: nonionic, iodinated contrast media used.
Volume: 40-60ml.
Rate:1ml to 3ml/sec.
Contrast media administration:IV

7. PATIENT PREPARATION
Fasting 4-6 hours.
Identify the patient and explain the procedure to the patient.
An IV line is secured.
 Remove metal or radio-opaque object such as ear rings, metallic headbands etc.
Patient should change into clean hospital gown.
unstable patient may be sedated prior to examination.
Take consent sign .

8. EQUIPMENTS

9. POSITION
Patient lies supine, head first into the gantry the head placed in the head holder
with arm bilaterally downwards
Table height is raised until the (EAM) is at the Centre of gantry.(external auditory
meatus).
 Three alignment lights are used for positioning the patients (axial, sagittal,
coronal).
After the position finish the laser light should be off.
POSITION LANDMARK-2-3 cm above the vertex

10. patient positioning

11. PROTOCOL
Scanogram ( scout) /topogram : Scano from the base of the skull to vertex.
 The slice thickness is 2 mm in adults and 5mm or less in Children.

12. PROTOCOL
 Scan extent: from the vertex to the base of skull .
 Scan direction : cranio-caudal(head to feet)
Scan type :Axial
 Pre contrast series: Axial images are acquired covering from the vertex to the
base.
contrast series: Axial images are acquired covering from the vertex to the base.

14. Intracerebral hemorrhage axial CT brain

15. AFTER CARE
Patient is brought out of the gantry
 Bring the patient down from the scanner table.
 Ask the patient to dress up.
 patient should be observed for possible CM reaction post procedure.
If non is observed , IV cannula should be removed from the patient’s hand gently.
Ensure that the patient is stable before leaving the department.
Inform patient time and where to collect the result.