I had my MRI today.  This was my fourth one since last June, and the third one of my head.  I asked the tech what "increased signal" meant, as that was what they put on my last MRI report.  He said it means there is an "active disease process."  I already know I have 18 lesions.  Does that mean more are forming, or are the existing ones active? Is there a way to tell? He had a heck of a time getting the needle in for the contrast dye.  He tried my arm without success, then looked at the back of my hand and stated he didn't think he could do it there and said he would have to do the index finger near the knuckle.  I begged him not to, as I have a load of transcription to do this weekend.  He agreed to try the back of the hand and finally got it going.  Glad that is over!   I'm tired tonight, so I will keep this short (that's a new one for me, eh?  lol)Be well, my friends.~Jlynn