A scan that examines the bones of the entire body? Let's learn everything about the Whole-Body Bone Scan!

When your doctor tells you that you need to have a 'Whole-Body Bone Scan', you may feel a little scared and nervous. It's very normal for a lot of questions to come to your mind, like, "What kind of scan is this? Why is this being done? Will this hurt? Is it anything serious?" But don't be scared at all. This is not as big or scary as you think. This is actually a very good, advanced way to know exactly about the health of your bones. So today, let's talk about this in detail, answering all the questions you have in your mind, in a very simple way, okay?

Simply put, what is this Whole-Body Bone Scan?

This is a special scan that checks the health of your bones throughout your body. To be precise, it's a nuclear medicine imaging scan. But don't be afraid of that word. Although the technology used is a bit complicated, this test is painless and very safe for most people .

Doctors often order this scan to confirm whether a cancer has metastasized to the bones. It also helps determine the stage of the cancer, or how far it has spread.

Before this scan, a small amount of medicine is injected into a vein in your arm. This is called a 'radiotracer'. It contains a very small, safe amount of radioactive material. When this medicine enters your body, it goes to the places where there is some change, damage, or abnormal functioning in your bones. Then, when you look at it on the scan, those places will show up very brightly. It's like shining a flashlight in a dark room and only seeing a certain area clearly. This helps the doctor find the exact location of the disease.

What exactly can this scan detect?

A Whole-Body Bone Scan can identify damage or changes in your bones. But the most important thing to remember is that this scan does not directly tell you what caused the damage or change. It only shows where the problem is.

Therefore, the doctor uses this scan only as a diagnostic tool. He or she will use the information from this scan and other tests to arrive at a final conclusion.

See the table below to see what types of medical conditions this scan can help diagnose.

How should I prepare before the scan?

This is the best part. Most of the time, there is no special preparation required for this scan. Your medical team will give you exactly the instructions you need.

• You can usually eat and drink as usual .
• You can take your medications as usual . But if your doctor advises otherwise, you should do so.
• On the day of the scan, do not wear anything containing metal . For example, you will need to remove jewelry, belts with metal buckles, and watches.
• If you have any metal parts inside your body (e.g. artificial joints, dental implants, pacemakers) , be sure to tell your doctor or technologist . They will then decide if this scan is safe for you.

What happens during the scan?

On the day of the scan, you will have to wait a few hours at the hospital or scanning center. So be prepared for that too. Here is the complete process of getting the scan done step by step.

The scan itself takes between 30 and 60 minutes , but the entire process takes several hours, including the time it takes for the medicine to be absorbed into the body.

Are there any risks or side effects to this?

This is a very safe test for most people. The dose of radiation in the radiotracer is so small that you don't need to worry about spreading radiation to others.

However, as a small precaution, you may be advised to stay at arm's length from people at high risk (e.g., infants, young children, and pregnant women ) for about 24 hours after the scan.

Especially remember!

Most people do not experience any side effects after this scan. There may be some bruising or swelling where the injection was given. This will go away on its own in a few days. After the scan, you can go home, drive, and do your usual activities. Your doctor will advise you to drink plenty of water for the next 48 hours. This will help flush out any remaining radiotracer from your body.

What does the scan report say? What happens next?

You won't get the results of the scan right away. It can usually take a week or two for the doctor to receive the report and explain it to you.

The report shows what are called "hot spots" in your bones. These are areas where the radiotracer has accumulated more, or where there is some abnormality.

So if the report says there are such "hot spots", it means that there is a problem in those areas. But the underlying cause cannot be determined from this scan alone. Therefore, your doctor will order several more tests to find out the exact cause. Such tests include:

• Biopsy - Taking a small piece of tissue from the area and examining it.
• CT scan (CT - computed tomography scan)
• MRI scan (MRI - magnetic resonance imaging)
• PET scan (positron emission tomography scan)

'Bone Scan', 'DEXA Scan', 'MRI'... Are these the same thing?

This is something that confuses many people. Let's clarify that.

• Bone Scan and Whole-Body Bone Scan: Often these two terms are used interchangeably. However, sometimes, when only one joint or one bone is examined, rather than the entire body, it is called a "Bone Scan."
• DEXA Scan: This is also a bone scan. However, it looks at the density of your bones . It is mainly used to check for bone thinning diseases like osteoporosis. This is a completely different test than the Whole-Body Bone Scan.
• MRI Scan: This is also completely different. An MRI does not use a 'radiotracer', but rather a strong magnet and radio waves. It can produce three-dimensional (3D) images of the inside of the body.

I hope you now have a better understanding of this scan. It's normal to feel nervous when your doctor orders a test like this. But remember, this is a very important and advanced test that will help you know exactly how healthy your bones are and help you decide on the best treatment. If you have any other questions, don't hold anything back and talk to your doctor openly.

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