Fig. 1From: SWE and SMI ultrasound techniques for monitoring needling treatment of ankylosing spondylitis: study protocol for a single-blinded randomized controlled trialSPIRIT figure for schedule of enrollment, interventions and assessments. ASQoL, Ankylosing Spondylitis Quality of Life; VAS, visual analog scale; BASMI, Bath Ankylosing Spondylitis Metrology Index; BASDAI, Bath Ankylosing Spondylitis Disease Activity Index; BASFI, Bath Ankylosing Spondylitis Functional Index; FS-14, Fatigue Scale-14.Back to article page