Figure 5From: Injecting drug use via femoral vein puncture: preliminary findings of a point-of-care ultrasound service for opioid-dependent groin injectors in treatmentNon-compressible vein (dual frame). Dual-frame image of the left femoral vein (lcfv) and artery (lcfa) in a 31-year old woman (case study A). The lcfv is non-compressible (long arrow) suggestive of acute deep vein thrombosis (DVT). Note the enhanced echo pattern in the soft tissue caused by oedema and the absence of post-acoustic shadow (small arrow).Back to article page