A critical overview of the imaging arm of the ASAS criteria for diagnosing axial spondyloarthritis: what the radiologist should know.

The Assessment in SpondyloArthritis international Society (ASAS) defined new criteria in 2009 for the classification of axial spondyloarthritis (SpA) in patients with ≥ 3 months of back pain who were aged <45 years at the onset of back pain. This represents a culmination of a number of efforts in the last 30 years starting with the 1984 modified New York criteria for ankylosing spondylitis, followed by the 1990 Amor criteria and the 1991 European Spondyloarthropathy Study Group criteria for SpA. The importance of new ASAS criteria for radiologists is that magnetic resonance imaging (MRI) takes center stage and is one of the major criteria for the diagnosis of axial SpA when active (or acute) inflammation is present on MRI that is highly suggestive of sacroiliitis associated with SpA.

Mesenteric angiography of patients with gastrointestinal tract hemorrhages: a single center study.

Purpose: This retrospective study was designed to investigate the transcatheter mesenteric angiography of patients with gastrointestinal (GI) bleeding and to determine the most important variables that should be monitored in patients with GI bleeding prior to transcatheter arteriography.

Materials And Methods: In this study, we evaluated the transcatheter mesenteric angiography results of patients with massive GI bleeding (defined as hypotension, tachycardia, and a greater than 4-unit blood transfusion requirement in 24 h) seen between 2005 and 2009. Detailed clinical follow-up and accessible hospital data from 45 procedures were examined from 42 patients (two procedures were performed in three patients) between 24 and 85 years old (mean age, 57.