“…Only a handful of studies have focused on characterizing foam physics in application‐relevant setups that are discussed here. On a general note, reported studies have investigated the effect of foam production technique (Bottaro, Paterson, Zhang, et al, 2019; Carugo et al, 2015; Critello et al, 2017), syringe size and number of pumping cycles (Bai et al, 2018; Nastasa et al, 2015), surfactant concentration (Cameron et al, 2013; Wong et al, 2015) and temperature (Bai et al, 2018), different liquid to gas ratios (Cameron et al, 2013; Carugo et al, 2015; Wong et al, 2015) and various gas types (Carugo et al, 2013, 2015; Hashimoto, Uchida, Horikawa, Mimura, & Farsad, 2018) on characteristics of sclerosing foams such as bubble count, bubble size distribution and static half‐life. The issue taken with these approaches is the relevance of attributes such as drainage time and bubble properties to clinical performance of sclerotherapy.…”