“…A number of different NIRS modalities were examined for their association with CBF. CW-NIRS was the most frequently utilized modality and was compared to CBF in 28 studies (Pryds et al, 1990(Pryds et al, , 2005Skov et al, 1991;Bucher et al, 1993;Kaminogo et al, 1995;Kirkpatrick et al, 1995;Hock et al, 1997;Holzschuh et al, 1997;Newton et al, 1997;Villringer et al, 1997;Goddard-Finegold et al, 1998;Pellicer et al, 1999;Yamaguchi et al, 1999;Soul et al, 2000;Ogasawara et al, 2003;Huppert et al, 2006;Murata et al, 2006;Ricci et al, 2006;Naulaers et al, 2007;Themelis et al, 2007;Kim et al, 2010;Taussky et al, 2012;Alderliesten et al, 2014Alderliesten et al, , 2017Wintermark et al, 2014;Alosh et al, 2016;Polinder-Bos et al, 2020;Hashem et al, 2022). DCE-NIRS was the next most commonly used modality with its relationship to CBF examined in 12 studies (Kuebler et al, 1998;Roberts et al, 1998;Brown et al, 2001Brown et al, , 2002De Visscher et al, 2003;Keller et al, 2003;Rothoerl et al, 2003;Schytz et al, 2009;Elliott et al, 2010Elliott et al, , 2014Saito ...…”