What is the primary function of automatic injectors in interventional procedures?

The primary function of automatic injectors in interventional procedures is to facilitate high flow rate and/or pressure. Automatic injectors are specifically designed to deliver contrast media or medications at controlled rates that are often higher than what can be achieved manually. This is particularly important in interventional radiology where high flow rates are necessary to ensure rapid and efficient opacification of vascular structures during imaging studies.

By achieving high flow rates, these injectors can optimize visualization during diagnostic imaging, such as CT angiography or during therapeutic interventions. The ability to maintain consistent pressure during injection is also critical to prevent complications such as extravasation, and to ensure that contrast media reaches the desired areas quickly, enhancing diagnostic clarity and procedural effectiveness.

In contrast, the options involving low flow rates, simultaneous imaging, or slow medication delivery do not align with the primary design and operational goals of automatic injectors in this context. While slow delivery may be appropriate in certain situations, it is not the main purpose of these devices in interventional radiology, where speed and precision in contrast delivery are essential.