Interval change
Read Your Scan Editorial Team·Last updated
Written from published radiology references and reviewed for plain language. Not written or signed by a physician, and not a diagnosis. How we write these pages →
In plain language
"Interval" means since the last scan — so "no interval change" is one of the better sentences in radiology: whatever is there has not moved, grown or spread in the time between the two studies.
Where you’ll see this
The impression of any follow-up scan, where a comparison study is listed at the top.
Your report may word it “No interval change”, “Interval development” or “In the interval”. These mean the same thing.
Questions worth asking your doctor
- Compared with my last scan, is this better, worse, or the same?
- How much change would matter enough to do something about it?
- When should the next scan be, and what would you be looking for?
Comparison with an earlier scan
See this word on your own scan
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