title: Relationship between power Doppler grade and the pathological blood vessel features in long-standing rheumatoid arthritis.
authors.affiliation: Graduate School of Health Sciences, Hokkaido University, North-12 West-5, Kita-ku, Sapporo City, 060-0812, Japan.
authors.forename: Katsumi
authors.initials: K
authors.lastname: Saito
authors.affiliation: Department of Rheumatology, Niigata Rheumatic Center, 1-2-8 Honcho, Shibata City, Niigata, 957-0054, Japan.
authors.forename: Asami
authors.initials: A
authors.lastname: Abe
authors.affiliation: Faculty of Health Sciences, Hokkaido University, North-12 West-5, Kita-ku, Sapporo City, 060-0812, Japan. ktamotamo2@yahoo.co.jp.
authors.forename: Tamotsu
authors.identifier: http://orcid.org/0000-0002-7293-7471
authors.initials: T
authors.lastname: Kamishima
authors.affiliation: Department of Rheumatology, Niigata Rheumatic Center, 1-2-8 Honcho, Shibata City, Niigata, 957-0054, Japan.
authors.forename: Hajime
authors.initials: H
authors.lastname: Ishikawa
authors.affiliation: Department of Pathology, Niigata Prefectural Shibata Hospital, 1-2-8 Honcho, Shibata City, Niigata, 957-8588, Japan.
authors.forename: Kunihiko
authors.initials: K
authors.lastname: Wakaki
authors.affiliation: Faculty of Health Sciences, Hokkaido University, North-12 West-5, Kita-ku, Sapporo City, 060-0812, Japan.
authors.forename: Akihiro
authors.initials: A
authors.lastname: Ishizu
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008662:Metacarpophalangeal Joint / Q000000981:diagnostic imaging; D008683:Metatarsophalangeal Joint / Q000000981:diagnostic imaging; D008875:Middle Aged; D013583:Synovial Membrane / Q000000981:diagnostic imaging*; D018608:Ultrasonography, Doppler / Q000379:methods*; D014955:Wrist Joint / Q000000981:diagnostic imaging