Nicola Pinhorn said she does not know why she was refused a PET scan A woman who previously had cancer and found a cluster of abnormal cells during a check-up has been refused a scan to ...

The P2X7 receptor plays a role in inflammation and neuronal signaling and is implicated in abnormal brain activity following injury ... The study also introduces a promising diagnostic approach using ...

The results showed that patients with amyloid values of over 7.1 in their CSF had PET scans that mostly did not pick up anything abnormal—meaning they tested negative for Alzheimer's.