LC Bead LUMI is the world’s first microsphere offering inherent, long-term radiopacity combined with the trusted performance of LC Bead.
LC Bead LUMI™ are precisely calibrated, radiopaque, biocompatible, nonresorbable hydrogel beads. The beads are produced from polyvinyl alcohol and contain a covalently bound radiopaque moiety.
LC Bead LUMI™ are manufactured to be inherently radiopaque and visible under imaging (Computed Tomography [CT], Cone Beam Computed Tomography [CBCT] and Fluoroscopy). LC Bead LUMI™ are available in two size ranges.
LC Bead LUMI must be suspended in soluble iodinated contrast (a minimum of 20ml per vial) to achieve effective delivery through microcatheters and to aid visualization during administration. Only pure contrast (i.e. undiluted) should be used. The LC Bead LUMI IFU recommends using contrast agents Omnipaque 350 (Iohexol 350) and Iomeron 400 (Iomeprol 400). Based on post-approval early experience, please note that Visipaque provides an even better (long and stable) suspension. LC Bead LUMI is visible on X-ray as the beads accumulate in the vessel and the contrast clears.
Recommended Contrast Agents: Omnipaque 350 (lohexol), Iomeron 400 (Iomeprol), Optiray 350 (Ioversol), Oxilan 350 (Ioxilan), Isovue 370 (Iopamidol), Ultravist 350 (Iopromide).
LC Bead LUMI is radiopaque from the proven core chemistry used in LC Bead with the blue dye replaced by a covalently bonded iodine to offer radiopacity. The radiopacity is integral to the bead and will not degrade, so LC Bead LUMI will be visible on imaging at long-term follow-up.
LC Bead LUMI is visible under x-ray imaging as they accumulate in the embolized vessels. It can be directly visualized as the delivery contrast agent washes out. Best visualization is achieved after administration using X-ray single shot technique (also referred to as X-ray snap shot). Cone beam CT (CBCT) can also be used to visualize the beads accumulated in the vessels with multi-planar reconstructions providing 3D spatial bead location and vessel connectivity.
LC Bead LUMI is easily visualized with CT. Early experience images from various different tumor types, show discrete embolized vessels where LC Bead LUMI is present with no significant streak artifacts nor masking of adjacent tissue unlike commonly seen following lipiodol-containing treatments. If contrast enhanced CT images are desired, obtaining a non-contrast image may be helpful to discriminate LC Bead LUMI from contrast enhancement.
The radiopacity of LC Bead LUMI does not degrade over time, so the beads will continue to be visible at follow-up.