Features

VISICOIL ™ linear fiducial markers are naturally visible by ultrasound, x-Ray, CT, MRI,
and high-energy photons (portal images), allowing the physicians to implant
the markers under one mode and later visualize them by another technique for treatment planning.

The coiled-wire design of VISICOIL ™ provides extreme flexibility of the marker
and allows the marker to conform with highly mobile soft tissue.

The extended and coiled-wire structure of the VISICOIL ™ provides for stability of the marker in tissue.
The marker is designed to minimize migration and movement...
in essence, to stay where you implant it.

The results of implantation into a canine prostate model indicate that the VISICOIL ™ markers
stayed in place once deployed, even when beyond the margin of the gland.

The extended length of the VISICOIL ™ marker allows the eye to track the marker image in soft tissue.
As has been demonstrated in anatomical phantoms, VISICOIL ™ can be more easily recognized
than the much larger point markers and with less confusion.

Yellow arrows note the VISICOIL ™ markers.
Comparative seeds are labeled with Red arrows.
X-Ray Image Courtesy of Dirk Verellen, University of Brussels.

Three points, when correctly visualized, define a plane.

Two or more VISICOIL ™ markers can provide volume information.

These markers can be inserted by a fine needle, from 22- to 18-gauge, resulting in a less traumatic procedure to the patient.
(Actual needle gauge is dependant upon the diameter of the marker to be implanted.)
Typically, a 17-gauge or larger needle has been used to introduce the 1.2mm marker shown.

Comparison of a 0.75mm VISICOIL ™ (top), 0.35mm VISICOIL ™(center)
and solid 1.2mm "seed" markers.

VISICOIL ™ markers are visible using various imaging modalities.
Thus, the position of the marker or markers can be used for image fusion
when using different modes (e.g. MRI-CT, US-CT, etc.).

The VISICOIL ™ delivery system is a simple design made to introduce (drop)
the marker into the lumen of the appropriate needle.

The VISICOIL ™ markers are delivered sterile and ready for use in the OR.