CT SCAN

What is it
CT (Computed Tomography) is a diagnostic test that combines the use of x-rays with computer technology. A series of x-rays beams from different angles around the body are used to show cross sectional images of the patient's body. The images so obtained are assembled in a computer into a three- dimensional picture that can display organs, bones & tissues in great detail.In spiral CT the examination table advances at a constant rate through the scanner gantry. While the x-ray tube rotates continuously around the patient, tracing a spiral path through the patient. This spiral path gathers continuous data with no gaps between images.

CT Angiography (CTA) is an examination that is used to visualize blood vessels in many areas of the body including the brain, kidneys, pelvis and the arteries serving the lungs. Compared to catheter angiography, which involves injecting contrast medium into an artery CTA is much less invasive & a more patient friendly procedure; contrast medium is injected into a vein rather than an artery.

Why is it done?
CT imaging offers detailed views of different types of tissue, including the lung, bones, soft tissues and blood vessels Using specialized equipment & expert technician to create CT scans of the body, radiologists can more easily diagnose problems such as cancers, cardiovascular diseases, infections, trauma & musculoskeletal disorders.

How is it done?
Patient is required to change into a all-cotton gown before the examination & should remove jewelry, eyeglasses and any other metal objects depending on the part of the body that is being scanned. The CT technician begins by positioning the patient on the CT table. The patients are supported on the table by the safety straps & are asked to lie still. During the scan technician can see, hear & speak to the patient at all times. A CT examination often requires the use of different contrast agents to enhance the visibility of certain tissues or blood vessels. The contrast agent may be injected directly into the blood stream, swallowed or administered by enema, depending on the type of examination. Before administering the contrast agent the radiologist or technician will ask whether the patient has any allergies, especially to medications like iodine and whether the patient has a history of diabetes, asthma, a heart condition, kidney problem or thyroid conditions as these conditions indicate a higher risk of reaction to the contrast agent. Fortunately with the safety of the newer contrast agents the adverse effects are very rare. A CT examination usually takes from 15 minutes to half an hour. When the exam is over, the patient may be asked to wait until the images are examined to determine if moreimages are needed.

For the CT Angiography contrast medium is injected into a vein with an automatic injector machine that controls the timing & rate of injection, which may continue during part of the time images are recorded. Afterwards the images are reviewed & some will be repeated, if necessary. The real work of CT angiography comes after the images are acquired, when powerful computer programs process the images & make it possible to display them in different ways.

When it is done/advised ?
It is done when clinicians prescribe it after examining patient and going through his/her records. The radiologists also advise for CT scan when routine x-rays and ultrasonography fail to provide adequate information.

Before ... Precautions & prerequisites
You should directly contact the CT scan room or the reception of the department for the appointment. Special instructions will be given depending upon the area to be scanned. PREPARATION FOR THE SERVICE:
Complete fasting for four hours is required. Women should always inform their doctor or CT technician if there is any possibility that they are pregnant. Routine medicines may be taken.

Tariff
C.T.Scan
i. Head
Plain Rs. 1,200
Contrast* Rs. 2,000
With pituitary fossa Rs. 2,700
With temporal bone Rs. 2,700
ii. THORAX/CHEST
Plain Rs. 2,500
Contrast* Rs. 3,500
iii. NECK / CERVICAL SPINE
Plain Rs. 3,000
Contrast* Rs. 3,500
iv. ABDOMEN
Plain and Contrast* Rs. 5,000
Upper abdomen with contrast* Rs. 3,000
v. PELVIS
Plain Rs. 2,000
Contrast* Rs. 2,875
vi. ORBITS
Plain Rs. 1,500
Contrast* Rs. 2,700
vii. BIOPSY Rs. 1,500
viii. Paranasal sinus axial and coronal (Plain) Rs. 2,000
ix. Paranasal sinus axial and coronal (Contrast) Rs. 2,700
x. Dorsal spine Rs. 2,000
xi. Lumbosacral spine Rs. 2,500
xii. Knee Rs. 1,500
xiii. Ankle Rs. 1,500
xiv. Hip joint Rs. 1,500

* In contrast view, cost of non ionic dye will be chargeable, at actuals.