Figure 3: Examples of pulmonary arteries in patients with PAH (limited and good haemodynamic response) and without PAH.
From: Optical coherence tomography evaluation of pulmonary arterial vasculopathy in Systemic Sclerosis
Coloured tracings represent endoluminal contours. (a) SSc-PAH. mPAP 51 mmHg. Treatment with Sildenafil. Limited haemodynamic response, 8% reduction in PVR. 0.2 side branches <300 μm per cm vessel (b) SSc-PAH. mPAP 29 mm Hg. Treatment with Bosentan. Good haemodynamic response, 51% reduction in PVR. 6.4 side branches <300 μm per cm vessel (c) SSc. mPAP 19 mmHg. 5.8 side branches <300 μm per cm vessel.
