Pulsed fluoroscopy is considered a requisite for paediatric fluoroscopy. The goal of paediatric fluoroscopic studies is to produce interpretable images (to answer a specific question) at the lowest possible radiation exposure. Digital pulsed fluoroscopy has the advantage of reducing patient dose while yielding diagnostic images. https://www.roneverhart.com/Plastic-Jigger-with-Measuring-Lines-Box-of-12/