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Description of Computed Tomography (CT Scan)

A CT scan—also known as a CAT scan—is a widely used medical imaging technique that provides highly detailed images of bones, organs, blood vessels, and soft tissues. Unlike standard X-rays, which show only a flat image, CT scans use multiple X-ray beams and computer processing to create 3D cross-sectional views of the inside of the body. This allows doctors to examine internal structures with precision and diagnose a wide range of conditions quickly and accurately.

CT scans are commonly used for investigating symptoms such as abdominal pain, headaches, chest discomfort, trauma, breathing difficulties, or unexplained swelling. They are also important for cancer detection, staging, and monitoring, as well as for assessing internal bleeding, infections, and bone injuries. Because CT scans are rapid and highly reliable, they play a pivotal role in emergency medicine and critical care.

What happens during a CT Scan

During a CT scan, you will lie comfortably on a movable table that passes through a doughnut-shaped machine. Depending on the type of scan, you may receive a contrast injection to help highlight blood vessels, organs, or areas of inflammation. The scan itself is painless, and most examinations take only a few minutes.

Advicon Imaging uses modern, low‑dose CT technology designed to minimise radiation exposure while maintaining exceptional image quality. Our experienced radiographers and specialist radiologists ensure safe, accurate, and patient‑centred care. All Medicare‑eligible CT examinations performed at our clinics are bulk‑billed, making high‑quality imaging accessible and affordable for the community.

Frequently asked questions

What is a CT scan?

A CT scan uses X-rays and computer technology to create detailed cross-sectional images of your body.

Why has my doctor ordered a CT scan?

Doctors use CT scans to diagnose injuries, infections, cancers, unexplained symptoms, internal bleeding, or abnormalities in organs and tissues.

Is there any preparation?

Preparation depends on the type of CT scan.

  • Some scans require fasting for several hours.
  • You may be asked to drink water or oral contrast.
  • Remove metal objects such as jewellery or belts.

Our staff will advise you of your specific preparation when booking.

What happens during the scan?

You will lie on a table that moves through the scanner. The machine takes rapid images, and you may be asked to hold your breath briefly. The scan itself is painless.

Is the scan painful?

No. CT scans are completely painless. If a contrast injection is used, you may feel a warm sensation or metallic taste that fades quickly.

Does a CT scan involve radiation?

Yes, CT scans use X-rays. Advicon Imaging uses low‑dose technology and modern protocols to minimise radiation exposure while maintaining high-quality imaging.

Will I need contrast?

Some scans require an injection of iodine-based contrast to better visualise certain organs or blood vessels. Your doctor will indicate if contrast is needed.

Is the contrast safe?

Most people tolerate contrast well. Rare allergic reactions can occur. Inform us if you have had previous reactions, kidney problems, thyroid disease, asthma, or diabetes.

How long does the scan take?

Most CT scans take 5–15 minutes. Total appointment time may be longer if preparation or contrast is required.

Can I drive afterwards?

Yes. You can return to normal activities unless advised otherwise.

When will my doctor receive the results?

Results are typically available within 24–48 hours. Urgent results can be prioritised.

Is the scan bulk-billed?

Yes. All Medicare‑eligible CT scans at Advicon Imaging are fully bulk‑billed.

Feedback from our patients

Advicon Imaging Reviews

Clinic

Amazing front desk staff, polite and friendly. Staff doing the procedures were amazing and professional. Clean and good location plus they accept Medicare bulk billing. Overall the place offers good service.

Gela

Advicon Imaging Hornsby Clinic

Advicon Imaging provides excellent service. The staff are professional and friendly, the facility is clean and well-maintained, and waiting times are minimal.

Liezel

Hornsby Clinic

Really impressed with the service here. The staff were friendly, professional, and welcoming, and I was in and out very quickly. Made the whole process easy and comfortable. Highly recommend

Alyson

Advicon Imaging Gladesville Clinic

I highly recommend Advicon Imaging West Ryde. They gave me the first available appt which was the day after I got the referral. No wait time. And X-Rays and ultrasound all bulk billed. Amazing! The ultrasound technician was lovely. The X-Ray results were texted immediately. The ultrasound and report are available in 2 days.

Lisa

Advicon Imaging West Ryde Clinic

What an amazingly great service—and especially wonderful people—work here! From the very first step, the receptionist, Mirella, was so lovely and did everything she could to help us organize an ultrasound for my daughter (even though we didn’t have an appointment). The technicians were very friendly and professional. They kindly squeezed us into the queue so we could get the service done. Truly impressed by both the service and the quality!

Irina

Advicon Imaging Hornsby Clinic

I had such a positive experience today. The customer service was genuinely caring, and the doctor made me feel completely at ease with their friendly and gentle approach. The entire staff was incredibly helpful and kind. Definitely a five-star experience!

Ehsan

Advicon Imaging Hornsby Clinic

I recently had a CT scan at this imaging centre, and I was very impressed with their service. The billing process was straightforward with bulk billing, and the centre offers easy access. The staff were friendly, professional, and made the experience stress-free. I’ve visited both of their locations, and they are conveniently situated near Hornsby Westfield, which makes them very accessible. Highly recommend for anyone needing imaging.

Jo

Advicon Imaging Hornsby Clinic

Lovley and friendly receptionist. Felt at ease while waiting. The actual process was quick and painless. If I ever need a cat scan, I would not hesitate to come back. Though perhaps the cat may feel differently.

Dave

Hornsby Clinic

The receptionist Mirella was very helpful and quick to arrange my Mum’s ultrasound. She had a wonderful attitude. The technician Lily was very thorough and patient while completing the ultra sound. They provided excellent care and service for my mum.

Michelle

Hornsby Clinic

Advicon imaging is a great friendly place and most things are bulked billed. They are easy to book. If you have any issues they will sort it out. The girls at reception are really nice and accommodating. The staff who do X-Ray, CT scan, ultrasound are great to deal with.

Aaron

Hornsby Clinic

Great communication from booking process through to examination. Wait times were minimal and the whole process was great (well as great as a medical ultrasound for a torn muscle). My clinician Perry was friendly, knowledgeable and professional. As were the administration/reception staff.

Ros-Alan

Advicon Imaging Gladesville Clinic

Highly recommend! We had a baby ultrasound here and they kindly accommodated us at the last minute. No waiting time and great service — will definitely come back next time!

Jaz

Advicon Imaging Gladesville Clinic

Advicon Imaging was extremely professional, from the referral stage right through to the medical scan. Appointment options were flexible based on my availability and the appointment time was adhered to. All staff were professional yet friendly.

Sharna

Advicon Imaging Gladesville Clinic

We had such a positive experience here. The staff were warm and patient with my young child, and took the time to explain every step in simple language so that they could understand. The whole visit was quick, organised, and the facilities were clean and comfortable. We were in and out within 10min. I wouldn’t hesitate to come back here again and highly recommend them to anyone who feels nervous about scans.

Jenny

Advicon Imaging West Ryde Clinic

I just visited the new imaging center in West Ryde, and I’m truly impressed! All the staff were so kind and welcoming, which made me feel comfortable right away. Everything — from check-in to the actual scan — was handled quickly and efficiently, with almost no waiting time.

Amy

Advicon Imaging West Ryde Clinic

I had an ultra sound with Robin who thoroughly explained everything to me as he conducted the scan, unlike most radiologists! Today I had to have a CT scan with Jason who was just as kind and professional. I thoroughly recommend this place. The whole team from receptionists to radiologists are running a fantastic service.

Nalan

Advicon Imaging West Ryde Clinic

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Should you have any questions or require any assistance, please don’t hesitate to get in touch. Our team is committed to supporting you and your patients every step of the way.