Why medical technology often doesn’t make it from drawing board to hospital

If there’s something wrong with your brain, how do you spot that in an MRI? Of course, if it’s something obvious, such as a major aneurysm or a tumour, anyone can see it. But what if it’s something more subtle, such as a neural pathway that is more deteriorated than normal? This might be hard to spot by simply looking at an image. However, there is a range of medical image analysis software that can detect something like this.