Fig. 3From: Porcine model of progressive cardiac hypertrophy and fibrosis with secondary postcapillary pulmonary hypertensionCreation of artificial aortic isthmus stenosis and myocardial hypertrophy in pigs via percutaneous stent implantation in the descending aorta. a Contrast angiography in a farm pig (15 kg) immediately after implantation of a bare metal stent (0.9 mm diameter, 20 mm length). b Computed tomographic (CT) aortography shows the location of the stent in anteroposterior view immediately after implantation. c Contrast-enhanced CT (lateral view) after stent implantation. d Magnetic resonance imaging (MRI) 5 months after stenting of the descending aorta displays the stent (red arrow), the pre- and poststenotic dilation (yellow arrows). Anteroposterior view. e Contrast enhanced MRI at 5-month follow-up shows the severely limited flow (yellow arrow) through the stent (red arrow). Lateral view. f Systolic frame from phase-contrast MRI cines; Aorta thoracalis, diameter: 15 mm, stent diameter: 9 mm, aliasing signal-fast moving blood in the stent area. (Maximum velocity 300 m/s equivalent with 56 mmHg pressure gradient on trough–plane images); 5-month follow-upBack to article page