Table 1. PIV data acquisition and analysis parameters.

Laser & illumination	5.5 W, 532-nm continuous wave Nd∶YAG,
	Time interval: min. 110 µs (70% stenosed), max. 400 µs (normal model)
	Illumination width: min. 100 µs
Camera & acquisition	1024×1024 pixels, 10-bit CMOS
	Sensor pitch size: 17 µm
	Acquisition rate: 1 kHz (500 Hz double frame)
Image properties	Viewing angle: ±35°
	Lens focal length: 60 mm
	Lens focal aperture: 2.8
	Filters: 550-nm long-pass
	Field of view: ∼45×41 mm2
	Magnification: ∼38 µm per pixel
Image pre-processing	Sliding background subtraction
	RMS mask to eliminate non-flow regions
Particles & image density	15-µm Rhodamine-B infused polystyrene 2.5 pixels mean
	2.5 pixels mean image particle size
	Average of ∼9 particles per 16×16 px2 window
Vector analysis	No. of measurement planes per model: ∼15 No. of velocity
	No. of velocity vectors per model: ∼21,000
	Type: adaptive multi-pass processing with decreasing window size from 64×64 to 16×16, using 3 refinement passes
	Final grid spacing: 8 pixels (∼0.3 mm)
Vector validation	Median filter (remove and replace)
	Single pass smoothing (3×3)