CT Scan

Introduction to CT Scan

What is a CT scan?

A CT scan, also called computed tomography, was formerly known as a computerized axial tomography (CAT) scan. It is an imaging test that helps healthcare service providers detect disease, injury, bones, and soft tissues. In this procedure, multiple X-ray images are combined to generate cross-sectional views using a computer. 3D pictures of the internal organs can also be generated. A CT scan provides a clear and precise view of the internal organs.

A large doughnut-shaped CT scan machine clicks images taken from different angles of the body. After processing through a computer, a cross-sectional picture of the body is produced. In the images , the body is seen as an X-ray “slice” recorded on film. That image is known as a tomogram. “Computerized axial tomography” refers to the recorded tomogram sections at different levels of the body. Imagine the body as a loaf of bread, and you are looking at one end of the loaf. As you remove each slice of bread, you can see the entire surface of that slice from the crust to the center. The body is similarly seen on CT scan slices, from the skin to the central part of the body being examined. The images obtained from CT scans help doctors and healthcare professionals with better diagnosis and treatment.

Test Details

Also known as CAT scan
Purpose This medical technique is used to visualise soft tissues, bones, muscles, organs, and blood vessels to diagnose disease states.
Preparation Avoid wearing glasses, metal jewellery, and fitted clothes
Fasting Fasting is not always required
Test Time Duration Maximum 30 minutes
Get reports within 2–5 hours

What can a CT scan detect?

A CT scan is performed for various medical reasons. The primary purpose of a CT scan is to diagnose and provide an accurate assessment of different clinical conditions. On-time detection will help healthcare professionals adopt correct medical procedures, which will enhance the monitoring of treatment effectiveness. A CT scan helps healthcare professionals diagnose various health issues, including:

  • Muscle and bone conditions like bone fractures, tumours, and regenerative bone diseases
  • Brain and head injuries, including stroke, abscess, encephalitis, hydrocephalus, and aneurysms.
  • Chest conditions such as pneumonia, lung tumours, and pulmonary embolism.
  • Spinal cord issues include fractures, herniated discs, spinal stenosis, and infections.
  • Gastrointestinal disorders (appendicitis, intestinal ischemia, diverticulitis, Crohn’s disease, ulcerative colitis)
  • Detects kidney diseases, including kidney stones, renal vascular disorders, hydronephrosis, and kidney cysts.
  • Tumours (benign, Neuroendocrine, liver metastasis, oncocytoma, etc.)
  • Clinical protocols comprising biopsies, surgery planning, radiation therapies, and drainage procedures.

How to Prepare for a CT Scan?

Specific preparations are necessary to obtain accurate and correct results from the CT scan. Here are some general guidelines to follow:

  • Visit to the centre earlier than the allotted time
  • Remove any metal jewellery, as it will distort the scan images
  • Wear comfortable and loose-fitting clothes
  • Do not eat for 4 hours before the scan
  • Consume clear liquids only, like juices, in the two hours before the appointment

In certain cases, you will be given a specific solution or water to consume before your scan if an oral contrast agent is needed to aid in viewing the organs. Here are some additional guidelines for the preparation of a CT scan with contrast:

  • Might need to get the blood test done before the scan
  • Need to watch out about the consumption of liquids and solids before four hours of the scan
  • Have to drink oral contrast as guided by the provider
  • Might need to take allergic medication suggested by the healthcare provider if needed

What is the procedure for a CT scan?

Here is a step-by-step procedure for doing a CT scan.

  • You will need to wear loose-fitting clothes or a gown provided by the provider.
  • Lie down in the bed as guided by the healthcare practitioner.
  • Slowly, the bed comes into contact with the doughnut-shaped scanner. You must remain still at this point, as any movement could cause the visuals to become blurry.
  • Holding your breath for a brief moment—typically less than 15 to 20 seconds—may also be required of you.
  • The area your healthcare practitioner needs to see is captured on camera.
  • Upon completion of the test, the table exits the scanner.

Who Should Go for a CT Scan?

If you have a severe accident with multiple injuries in various body parts, then it is recommended to go for a CT scan. People who are doubtful about having cancer, heart disease, kidney stones, and bowel disorders can consider getting a CT scan done.

Are There Any Side Effects of a CT Scan?

It does not have any significant side effects, but some patients may experience side effects due to administration of contrast agent. Headaches, dizziness, nausea, and vomiting are some of the common side effects.

What are the risks associated with a CT scan?

Although a CT scan is a handy and valuable tool for diagnosing several diseases, it provides information that can’t be detected with other medical procedures. They do carry specific risks, so it is essential to understand these risks and have a one-to-one discussion with a healthcare provider.

  1. Radiation Exposure— The X-rays used in CT scan machines use ionising radiation to generate images. Although the radiation dose is low, frequent CT scans and scans with higher levels of radiation can increase the risk of cancer. Children are more prone to develop cancer if they get scanned multiple times, but it is rare. To minimise the risk, healthcare professionals use new machines and provide a lower dose of radiation.
  2. Contrast Agent Reaction— Some individuals can experience a reaction due to the dyes injected into the bloodstream to enhance the quality of the images. Skin rashes, headaches, and itching are the signs of a mild reaction. To mitigate this risk, patients and healthcare providers should discuss the patient's existing allergies, reactions, and medical history.
  3. Pregnancy concerns— Women during pregnancy are not advised to go through a CT scan as it will hurt the fetus.
  4. Kidney Issues— Patients with pre-existing medical conditions affecting kidney function and other health conditions related to kidney function should inform their doctors before the scan.
  5. Price Point— Though CT scan prices may vary depending on the type of scan and the diagnostic center, CT scans can be expensive, but they are worth it for the accurate detection of serious problems. A scan is mandatory.

CT Scan Vs MRI Vs X-ray

Here is a comparison of all three types of scans:

Feature CT scan MRI X-ray
Energy Source Multiple X-ray beams Magnetic fields and radio waves X-rays
Image type 3D images 2D and 3D images 2D images
Radiation Moderate No radiation low
Time taken 10 mins to 30 mins 15 mins to 60 mins 5 mins to 20 mins
Primary use Bones (complex fractures) soft tissues (blood vessels, lung tumors, etc.) Soft tissues (spinal cord, brain, muscles, ligaments, etc.) Bones (fractures, dislocations, teeth, and chest issues)
Accessibility Available in hospitals and imaging centres Less widely available Widely available
Cost More expensive than X-ray Most Expensive Generally least expensive
Limitations Not ideal for pregnant women Cannot be used with metal implants like a pacemaker Poor for soft tissues

Radiology Tests

  • CT ABDOMEN DUAL PHASE
  • CT ABDOMEN TRIPLE PHASE
  • CT HRCT TEMPORAL BONE
  • CT NCCT CHEST
  • CT NCCT NECK
  • CT NCCT ORBIT
  • CT NCCT SINGLE KNEE JOINT
  • CT NCCT SINGLE SHOULDER
  • CT NCCT WHOLE ABDOMEN
  • NCCT THORAX
  • CT Scan Angiography: Brain Angio, Pulmonary Angio, Abdominal Angio, Renal Angio, Uro Angiography, Upper & Lower Limb Angio
  • CT- Brain & Orbit Axial & Coronal Sec.
  • CT- Brain + Orbit + PNS and Orbit Axial & Coronal Sec.
  • CT - Mastoid Temporal Bone HRCT Axial & Coronal Sec.
  • CT- Face and Neck + Brain
  • CT- Cervical Spine + Thoracic Spine + L.S. Spine
  • CT- Thorax + Thorax (HRCT)
  • CT Upper Abdomen / CT Lower Abdomen
  • CT Whole Abdomen + CT KUB Region
  • CT Neck and PNS
  • CT- Thorax + Upper Abdomen + Neck + Whole Abdomen
  • CT- Pelvis + Hips Joint
  • CT Joint Segment (Anyone)
  • CT- PNS + Temporary + Sella (152 MM Cut) Limited Cut
  • CT- Pituitary CT - Sella Very Thin Cut
  • CT - T.M. Joint
  • CT- Guided Site Marking
  • CT- Scan All Joint/Whole Body Supine Prone
  • 3D CT Scan – Three Dimensional CT Scan
  • 3D Build Model: Angio, CT Bone, CT Lungs, CT Soft, MPUR, NAVG, CF NAVG Smooth, Reformation Detail, Reformation Standard
  • 3D Bone Whole Body Joint Build Model
  • 3D Face/Neck, 3D Cervical Spine, Thoracic Spine with 3D, L.S. Spine with 3D, Hips Joints with 3D, Both Upper Limb with 3D / Both Lower Limb with 3D
  • CT- Abdomen (MPR) (MIP)
  • CT Guided Biopsy
  • CT 3D Nasal Bone

Speciality

  • CT Scan Virtual Bronchoscopy
  • CT Scan - Lungs 3D CT Scan Lungs Navigator
  • CT Scan Whole Body Scanning Service
  • CT Scan - Urography Scanning Service
  • CT Scan - Angiography Scanning Service
  • CT Scan — 3D CT Scanning Service

Conclusion

A CT scan is a potent diagnostic tool that helps to solve critical health problems, from diagnosing internal bleeding and bone issues to liver, lung and kidney problems. A CT scan is a painless procedure that helps identify both normal and abnormal structures and can be used to guide further procedures. Are you looking for a CT scan near you? Don’t worry. Get accurate diagnostics with a CT scan near me with price clarity only at Medicentre in Udaipur. Check their CT scan price for affordable diagnostic services.

FAQs

  • What is a CT scan, and why is it done?

A CT scan is a medical imaging technique that uses X-rays to create detailed cross-sectional images of the body. It enables the detection of a wide range of health issues and injuries.

  • How is a CT scan different from an X-ray?

X-ray uses a single beam of radiation to create 2D images of mainly bones and joints, while a CT scan uses multiple X-ray beams to create 3D, detailed pictures of different body parts and organs.

  • Which is the best diagnostic center for a CT scan in Udaipur?

Medicare Sonography and Clinical Lab is the best CT scan center in Udaipur.

  • Do I need a doctor’s prescription for a CT scan?

Yes, generally, you need a prescription from a doctor to undergo a CT scan.

  • How should I prepare for a CT scan?

Do not eat solid food for four hours before the CT scan. Instead, consume fluids like water or juice. Wear loose-fitting clothes before the examination.

  • Is contrast dye used in all CT scans?

No, contrast dye is not used in all the CT scans.

  • Are CT scans safe? What about radiation exposure?

CT scans are considered safe and medically necessary by healthcare practitioners. Low radiation doses show no long-term side effects. While they involve more radiation than X-rays, the exposure varies depending on the scan type and the body part being examined.

  • How long does a CT scan take?

A CT scan usually takes 10 to 30 minutes to complete.

  • When will I get the CT scan report?

You will receive your reports within 2 to 5 hours.

  • What is the cost of a CT scan in Udaipur?

The CT scan price in Udaipur ranges from ₹ 2,500 to ₹ 8,000.

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