In Vivo Detection of Diffuse Inflammation in Secondary Progressive Multiple Sclerosis Using PET Imaging and the Radioligand 11C-PK11195. Rissanen E, Tuisku J, Rokka J, Paavilainen T, Parkkola R, Rinne JO, Airas L J Nucl Med. 2014 Apr 7. PMID: 24711650. Abstract CommentRecommendBookmarkWatch