Fig. 1From: Echocardiographic parameters in French Bulldogs, Pugs and Boston Terriers with brachycephalic obstructive airways syndromeCaudal vena cava collapsibility index (CVCCI) was lower in FB with signs of BOAS (A) than in non-brachycephalic dogs (B). LEGEND: CVC insp. = caudal vena cava during inspiration, CVC exp. = caudal vena cava during expirationBack to article page