Your PET/CT Scan at University College Hospital
Understanding PET/CT Scans
Positron Emission Tomography combined with Computed Tomography, commonly known as PET/CT, is a sophisticated imaging technique that provides detailed information about your body's internal structures and function. This scan is particularly valuable in assessing conditions like cancer, heart disease, and brain disorders.
Preparation for Your Scan
Preparing for a PET/CT scan is straightforward but crucial for accurate results. Patients are typically advised to avoid eating for a few hours before the procedure. You may be instructed to follow a special diet and drink plenty of water the day before. It's essential to inform the medical team about any medications you're taking or if you have diabetes, as adjustments might be necessary.
During the Procedure
Upon arrival at University College Hospital, you will be greeted by our friendly staff who will guide you through the process. The first step involves administering a small amount of a radiotracer, usually through an injection. The radiotracer allows the PET/CT scanner to capture images of metabolic activity in your body. You will then need to rest quietly for about an hour as the tracer circulates.
The Scanning Process
During the scan, you will lie comfortably on a motorised table that moves slowly through the PET/CT scanner. It's important to remain still to ensure clear images. The scan itself is painless and typically takes 30 minutes to an hour. The images produced will help your doctor to accurately diagnose and plan the best course of treatment for your condition.
After the Scan
After your PET/CT scan, you can usually resume your normal activities immediately. Drinking plenty of fluids will help flush the radiotracer from your body. Your results will be analysed by a specialist, and your referring doctor will discuss the findings with you at a follow-up appointment. If you have any concerns after the scan, our team is here to support you.
Why Choose University College Hospital?
At University College Hospital, we are committed to providing state-of-the-art diagnostic services in a patient-centred environment. Our skilled radiologists and caring staff ensure that you receive the highest standard of care throughout your visit. Trust us to be your partner in health, offering advanced imaging solutions tailored to your needs.
Frequently Asked Questions
What is a PET/CT scan and why do I need one?
A PET/CT scan combines Positron Emission Tomography (PET) and Computed Tomography (CT) imaging. This allows doctors to see both the structure and function of organs and tissues in your body, helping to diagnose and manage various conditions, including cancers, heart disease, and brain disorders.
How should I prepare for my PET/CT scan?
You will receive specific instructions from the hospital staff, but general preparations include fasting for a few hours before the scan, avoiding strenuous exercise, and informing your doctor of any medications or allergies.
What can I expect during the PET/CT scan procedure?
During the scan, you will be asked to lie still on a table that slides into the PET/CT machine. It typically takes about 30 minutes to two hours, depending on the area being examined. You may feel a bit of discomfort from the injection of the tracer.
Are there any risks associated with a PET/CT scan?
The risks are minimal. The amount of radiation you are exposed to during a PET/CT scan is relatively low and is considered safe for most patients. However, pregnant women should discuss potential risks with their doctors.
How long does a PET/CT scan take?
The entire procedure, including preparation and scanning, usually takes between 1 to 3 hours. The scanning itself generally lasts between 30 minutes and an hour.
Can I eat or drink before my PET/CT scan?
You will usually be instructed to fast for at least 6 hours before the scan. You may be allowed to drink water, but it's best to follow the specific guidelines provided to you by the hospital.
Will I need to remove clothing for the PET/CT scan?
You may be asked to wear a hospital gown or remove clothing containing metal objects, as metal can interfere with the imaging process. Comfortable, loose-fitting clothing is recommended.
Can I take my regular medications before the scan?
You should inform the medical staff about all medications you are taking. Some may need to be paused or adjusted, but others can be continued as usual. Always follow your doctor's instructions.
When will I receive the results of my PET/CT scan?
Results are usually interpreted by a radiologist and sent to your referring doctor within a few days. Your doctor will then discuss the findings with you and explain any further steps if necessary.
Is the PET/CT scan painful?
The scan itself is painless. You might feel a slight sting or discomfort when the tracer is injected and may need to remain still for the duration of the scan.
Can I drive myself home after the PET/CT scan?
Yes, you can usually drive yourself home after the scan unless you have received sedative medication or feel unwell.
What should I do if I feel unwell after the scan?
If you feel unwell after the scan, it's important to contact your doctor or the hospital where the scan was performed. They can provide you with guidance on what to do next.
Are there any side effects from the PET/CT scan tracer?
Most people experience no side effects from the tracer. Rarely, some may have minor allergic reactions or feel a bit fatigued. Any concerns should be discussed with your doctor.
Can I resume normal activities after my PET/CT scan?
Typically, you can resume your normal activities immediately after the scan unless advised otherwise by your doctor.
Will my insurance cover the PET/CT scan costs?
Coverage for PET/CT scans varies by insurance provider. It's best to check with your insurance company or the hospital's billing department in advance to understand your coverage and any potential out-of-pocket costs.
Useful Links
Useful links from: The FDG PET Scan: What to expect
- NHS - PET scan Comprehensive guide from the NHS on PET scans, including what to expect, how to prepare, and what the results mean.
- Cancer Research UK - PET-CT scan Detailed information from Cancer Research UK about PET-CT scans, including the procedure, reasons for it, and what to expect.
- Macmillan Cancer Support - PET scans Macmillan Cancer Support offers an overview of PET scans, their purpose in cancer diagnosis, and what patients can expect during the scan.
- British Heart Foundation - PET scans Information from the British Heart Foundation about PET scans, focusing on their use in diagnosing cardiovascular conditions and what to expect during the procedure.
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