Which type of coil consists of two or more coils with individual receiver channels?

Phased array coils are designed with multiple smaller coils that work together, each with its own receiver channel. This configuration allows for improved spatial resolution and signal reception over a larger area. The individual receiver channels contribute to the ability to collect data from various angles and positions, which enhances image quality and provides more detailed scans of the anatomy being studied. The use of multiple coils enables the MRI system to create images with greater depth, making it particularly useful for certain areas of the body where enhanced detail is necessary, such as in musculoskeletal imaging or when scanning complex structures.

In contrast, volume coils and body coils typically operate as single channels, while surface coils may only have one or two channels. The unique design and functionality of phased array coils make them an advantageous choice in many advanced MRI applications.