References
Abe A, Ishikawa H, Nakazono K, Murasawa A, Wakaki K (2015) A comparison of the ultrasonography images of the joints of patients with rheumatoid arthritis and the corresponding synovial histological findings. Mod Rheumatol 20:1–6
Walther M, Harms H, Krenn V, Radke S, Faehndrich TP, Gohlke F (2001) Correlation of power Doppler sonography with vascularity of the synovial tissue of the knee joint in patients with osteoarthritis and rheumatoid arthritis. Arthritis Rheum 44(2):331–338
Rooney M, Condrell D, Quinlan W, Daly L, Whelan A, Feighery C et al (1988) Analysis of the histologic variation of synovitis in rheumatoid arthritis. Arthritis Rheum 31:956–963
Abramoff MD, Magelhaes PJ, Ram SJ (2004) Image processing with ImageJ. Biophoton Int 11(7):36–42
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
All the authors declare that they have no conflict of interest.
Ethical approval
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
Informed consent
Informed consent was obtained from all individual participants included in the study.
Additional information
Katsumi Saito and Asami Abe have contributed equally to this study.
Rights and permissions
About this article
Cite this article
Saito, K., Abe, A., Kamishima, T. et al. Relationship between power Doppler grade and the pathological blood vessel features in long-standing rheumatoid arthritis. Rheumatol Int 36, 1689–1690 (2016). https://doi.org/10.1007/s00296-016-3576-2
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00296-016-3576-2