Implanted fiducial markers

Designed around
how you image.

Explore polymer, mixed-media, and gold markers for image-guided radiation therapy. Find options for your imaging workflow, treatment site, and placement approach.

Explore our markers Find a marker

Cortex. The Implanted Marker Company.

FlexiMarc G/T marker with two gold nodes joined by a titanium filament
FlexiMarc G/TGold + titanium
Polymark polymer fiducial marker
PolymarkPolymer
FusionCoil fiducial marker
FusionCoilGold + titanium
Polymer, mixed-media & gold
Multiple placement configurations
Explore the published research

New to the Cortex portfolio

Two new ways
to define your reference.

Two additions to explore for your marker workflow. Available in the United States only; not CE marked.

FusionCoil Silhouette fiducial marker configuration
U.S. only — not CE marked
Gold + titanium · 20 gauge

FusionCoil Silhouette

Slender 0.6 × 5 mm gold coils with titanium alloy cores. Explore spaced and single-marker configurations through a 20-gauge needle.

View marker & delivery options
Spaced Polymark fiducial marker configuration
U.S. only — not CE marked
PEEK polymer + steel · 18 gauge

Spaced Polymark

Two 1 × 3 mm polymer markers with steel cores, separated by a 17 mm bioabsorbable spacer and delivered through one 18-gauge needle.

View marker & delivery options

Start with your
clinical workflow.

Browse by imaging needs or treatment site to explore the Cortex marker portfolio.

01 / IMAGE REGISTRATION

CT–MR image fusion

Explore marker options for workflows that combine CT planning with MR imaging.

Markers for MR fusion
02 / MOTION MANAGEMENT

Intrafractional tracking

Explore linked and spaced marker configurations for treatment tracking workflows.

Markers for tracking

Browse by treatment site

Prostate Lung Breast Liver & abdomen

A closer look at
the portfolio.

View all markers & configurations
Polymark fiducial
Polymer marker

Polymark

A polymer-based fiducial option. Explore available sizes and placement configurations.

Explore Polymark
FusionCoil fiducial
Mixed-media marker

FusionCoil

An open spiral gold coil with a titanium alloy core. Explore needle and cartridge options.

Explore FusionCoil

The mixed-media approach

Different imaging needs.
One focused portfolio.

A marker’s materials and geometry affect its appearance across imaging systems. Learn how Cortex combines materials to address CT and MR visualization.

Why mixed-media markers?

Explore the evidence

Put the research
within reach.

Find publications on fiducial visibility, imaging artifacts, image registration, and clinical use.

Clinical publications Imaging & marker materials Meet Cortex

Let’s find the right marker
for your workflow.

Questions about product selection, configurations, or availability? Talk with Cortex.

Contact Cortex