CT Scan Basics: How Long It Takes, What It Costs, and What to Expect

December 9, 2025
A calm, clean clinical setting showing a patient speaking with a technologist near a CT scanner.

When you're told you need a CT scan, it’s normal to have questions:

How long will it take?

How much will it cost?

Is it safe?

At Naugatuck Valley Radiological Associates (NVRA), we hear these questions every day. Whether you're dealing with a new diagnosis, a chronic condition, or simply trying to get answers quickly, we’re here to guide you through the process, step by step.


Why Patients Feel Nervous Before a CT Scan

Common Questions About Time, Cost, and Radiation

CT scans are powerful, fast diagnostic tools, but for many patients, the unknowns can cause worry. Will the scan take long? Will it be expensive? How much radiation does it use?

Add in the fact that some patients are paying out of pocket or juggling multiple medical appointments, and it’s easy to see why they want clear answers upfront.


What Doctors Use CT Scans For, From Injuries to Chronic Conditions

CT (Computed Tomography) scans are used to visualize organs, bones, blood vessels, and soft tissue in great detail. Doctors often order CT scans to help:

  • Diagnose injuries (like fractures or head trauma)
  • Detect lung conditions, cancers, or infections
  • Monitor chronic issues like kidney stones or abdominal pain
  • Guide treatment decisions or follow-up care


A Clear, Confident Understanding of the CT Process

How Long a CT Scan Really Takes (Most Are Under 10 Minutes)

One of the biggest surprises for first-time patients? CT scans are fast. The actual scan time is often under 10 minutes, depending on the type of exam and whether contrast dye is used.

You’ll spend more time checking in and reviewing instructions than in the scanner itself.


How Much Radiation Does a CT Scan Use and Why It’s Considered Safe

CT scans do use radiation, but modern scanners (like the ones used at NVRA) are designed to minimize dose while maximizing clarity. For most patients, the risk is extremely low compared to the benefit of a timely and accurate diagnosis. Learn more about imaging risks and benefits.


What to Expect During Your CT Scan at NVRA

From Check-In to Results

  1. Check in at one of our convenient locations
  2. Pre-scan instructions explained clearly by our team
  3. Scan performed by a certified CT technologist
  4. A radiologist reads your scan, usually within 24–48 hours
  5. Results sent to your provider or shared via your patient portal


Patients are often surprised by how simple and stress-free the process is, with no loud banging, no long tunnel, and no lengthy wait.


How Long Does a CT Scan Take?

Typical Scan Times for Abdomen, Chest, Head, and Musculoskeletal Exams

  • Abdomen/Pelvis: ~10–15 minutes
  • Chest/Lungs: ~5–10 minutes
  • Head/Brain: ~5 minutes
  • Spine or Joints: ~10 minutes


Why Some Exams Are Longer (Preparation and Contrast Use)

Some exams may require contrast material, which helps highlight blood vessels, inflammation, or abnormal tissues. If contrast is used, you may need extra time for prep, an IV, or observation afterward.


How NVRA Minimizes Wait Times at All Locations

With multiple CT-capable facilities in Southbury, Waterbury, and Prospect, NVRA works hard to offer fast scheduling and keep appointments on time, so you’re in and out and on with your day.


How Much Does a CT Scan Cost?

Self-Pay Through NVRA

If you’re not using insurance, NVRA offers transparent, easy-to-understand pricing. Our self-pay rates for CT scans start at $100 and go up to $600, depending on the type of scan and whether contrast is used.


Here are a few examples:

  • CT Lung Screening: $250
  • CT Head/Brain without contrast: $400
  • CT Abdomen and Pelvis with contrast: $500
  • CT Cardiac Scoring: $100
  • CT Lumbar Spine with contrast: $600


You can find our full list of self-pay rates right here.


Why Outpatient Imaging Is Often More Affordable Than Hospital Imaging

At NVRA, we perform CT scans in convenient outpatient centers, which helps eliminate many of the hidden fees associated with hospital-based imaging. You’ll receive the same level of clinical quality at a significantly lower cost.


How Much Radiation Does a CT Scan Use?

Understanding Radiation Dose in Simple Terms

Radiation in CT scans is measured in millisieverts (mSv). A typical CT scan might expose you to 2–10 mSv, depending on the area being scanned. For context, the average person gets about 3 mSv per year from natural background radiation.


How Dose Is Kept as Low as Possible While Maintaining Accuracy

NVRA uses advanced, ACR-accredited imaging equipment and follows the ALARA principle, As Low As Reasonably Achievable, to reduce radiation dose while still getting the clearest images possible.


When CT Is the Right Choice for Clear, Fast Diagnosis

CT is often the best option when quick answers are needed — whether it’s for internal bleeding, stroke symptoms, or unexplained pain. Your doctor will weigh the benefits carefully before recommending this test.


Preparing for Your CT Scan

What to Wear and Whether You Can Eat or Drink

  • Wear loose, comfortable clothing
  • Remove jewelry and metal if possible
  • Some scans require fasting; instructions will be provided


Special Instructions for Contrast Exams

If your scan includes contrast, you may be asked about allergies, medications, or kidney function. Our staff will review everything with you and answer any questions beforehand.


How NVRA Technologists Support You at Every Step

Our certified technologists are trained to walk you through the process with clarity and compassion, explaining each step so you feel comfortable and informed.


CT Scan Results

How NVRA Delivers Timely, Accurate Radiologist Reports

Your CT scan will be interpreted by a board-certified NVRA radiologist, and the results are typically sent to your provider within 24–48 hours. We also offer a secure patient portal if you'd like to access your report directly.


Why Patients Choose NVRA for CT Imaging

Experienced Technologists and Board-Certified Radiologists

All NVRA CT scans are performed by certified technologists and read by radiologists with years of diagnostic experience, ensuring quality you can trust.


Transparent Pricing and Convenient Scheduling

With clear self-pay options and quick availability, we make it easier to get the scan you need, without the runaround.


Multiple Locations Offering CT Scans Near You

CT imaging is available at all NVRA locations, including Southbury, Waterbury, and Prospect. Find your nearest location and book your appointment today.

Still have questions? Contact us or call 203-753-NVRA (6872) to speak with our scheduling team.