Most of us do not give old medical scans much thought once the appointment is over. The report gets filed away, the images sit on a disc or online portal, and that is usually where they stay.
Then, months or even years later, you need another scan and suddenly those old images matter again.
They may not look useful to you, but to a radiologist, they can fill in part of the story. A new scan shows what is happening now. An older scan gives them something to compare it with, and that comparison can be surprisingly helpful.
Why does comparing scans matter?
At first, an old scan can feel a bit pointless. It was taken years ago, the appointment is done, and surely the new scan is the one that matters now, right?
Well not quite.
That older image gives the radiologist a proper before-and-after to work with. A small mark on your latest scan may look new, but if it was already there three years ago and has not changed, that tells a very different story. On the flip side, if something has grown or changed shape, it is much easier to notice when both scans are sitting there together.
So yes, keep the old scans. Even the ones you thought you would never need again. They can save time, cut out a lot of guesswork and sometimes stop a harmless finding from becoming a much bigger worry than it needs to be
They can help track changes over time
Old scans become especially useful when a doctor is checking on something that has already been picked up before. That could be an old injury, a condition you are already being treated for or even a small area that simply needs to be watched for a while.
And no, a follow-up scan does not always mean the doctor is expecting bad news. Sometimes they are checking because the safest thing to do is make sure nothing has changed.
Those older images give them a proper starting point. They can see whether an injury is healing, whether treatment seems to be helping or whether everything has stayed more or less the same. Without that first scan, there is nothing to really measure the new one against.
Could they help you avoid another scan?
In some cases, yes.
If you visit a new practice without your earlier scans or reports, the doctor may not know that the same area has already been investigated. Having those records available could help prevent an unnecessary repeat, although a new scan may still be needed if your symptoms have changed.
This becomes even more important if you have moved, changed doctors or had your previous scan somewhere else.
Medical practices do not always have automatic access to one another’s records, so it is worth checking where your images are stored and how you can get a copy.
Do you need the images or only the report?
The report is useful, but the actual images matter too.
A report gives the radiologist’s written findings from that day. The images allow another radiologist to look at the area directly and compare it with your new scan.
Ideally, keep both when possible. Your scans may be available through a patient portal, supplied electronically or saved on a disc. If you are unsure, contact the facility that performed the original examination.
Keep them somewhere you can find them
Nobody expects you to build a giant medical archive at home. Still, keeping track of major scans is a good habit, especially if you are having ongoing treatment or regular follow-up imaging.
Now all that being said, in most cases your previous scans will be on record with your doctors, but it’s worth saving the reports in one folder and following that up by making a note of where the images are stored. It sounds simple, but it can save you a lot of searching later if you ever need them!
That old CT, MRI, or X-ray may feel like something you are finished with, but in reality, it could be exactly what your doctor needs when he looks at what has changed, or just as importantly, what has not changed.
Need a Scan or Follow-Up Imaging?
If your doctor has referred you for an X-ray, CT scan, MRI, mammogram or bone density scan, Bergman Ross can help. Reach out to our team at Bergman Ross or book an appointment directly through our website