The point of this programming exercise is to find outlier words that speech recognition shouldn’t, but does, insert into the dictated reports. By taking a large sample size for a user, the word frequency can be used to remove inappropriate words from the user dictionary.
As an example, I had the word “heber” escape my proofreading at one point and it made it into the list. I’ve removed it now, but the ultimate goal is to check each report for outlier words, and when they fall below a frequency threshold, to flag them for review.
You can see that there are some words that just don’t belong. This frequency analysis allows removal from the lexicon and by doing so, should improve reports AND recognition. There are a few problems with the data that are fixable.
- Indexing of unimportant elements
- Measurements (cm, mm, g …)
- HTML tags
- Technique (modalities and technique description)
- Punctuation filtering
- gives rise to concatenated words
From the radiologist’s perspective, if you are going to give a diagnosis that you’ve never given before, it should not be taken lightly. This follows the axiom that an uncommon presentation of a common disease is more common than a rare disease. If at all possible, try to have another radiologist consult and confirm your suspicions and for heaven’s sake, if there is a differential, please give it.
I have frequently seen radiologists try to hit a “home run” by naming a rare disease, not giving a differential, and flubbing the case because it’s actually a common disease with an unusual presentation.
The point of that aside is that a frequency analysis can prompt the radiologist to ask “do I really mean to use that word” and if you do, it will make you think about whether that is the correct and only differential consideration you want to give.
All too often, technology solutions in medicine increase the burden on the physician rather than facilitate the practice of medicine. EMRs are a perfect example. You spend more time clicking than caring. The eventual goal will be a real time prompt on signing a report that keeps the rad out of trouble and produces a polished professional report. At the end of the day, the report is the indelible work product.