On the Feasibility of Overcoming Frequency Encoding Limitations Near Metal Implants with Broadband Single-Point Imaging on Clinical MR Systems

It has been established that all frequency encoded imaging acquisitions have encoding limitations that are reached near commonly encountered implants at 3T. Here, we present a study whereby the known limitations on clinical MR scanners are modeled in the context of broadband single-point imaging. The resolution, scan time, and T2* signal loss of such a clinically viable single-point-imaging implementation are discussed. It is shown that such an implementation may provide signal directly near metal implants that cannot be acquired via any conventional readout-driven sequence

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