This function is similar to partial averaging in that the complex conjugate relationship between the both halves of k-space is used to shorten the echo time in an imaging sequence.

See Partial Echo.

DAB-Am64-(1B4M-Gd)64 is a new macromolecular MRI contrast agent for the diagnosis of liver micro-metastasis, consisting of a polypropylenimine diaminobutane (DAB) dendrimer conjugated with a bifunctional DTPA derivative complexing Gd(III).