Optimized Phantom for AIMD Model Validation at 64 MHz and 128 MHz

The DUAL-CYL-TFD phantom is a dual frequency (64 MHz/128 MHz) cylindrical phantom optimized for validation of active implantable medical device (AIMD) models. The phantom is based on the test field diversity (TFD) method that allows the user to generate a wide range of diverse amplitude and phase configurations along the same AIMD path by changing only the in-phase and quadrature (I-Q) feeds from the radiofrequency (RF) coil. The design of the phantom racetrack guarantees that effects caused by reflections from the phantom walls and scattering from other parts of the AIMD remain minimal. Elongated structures of up to 1100 mm can be tested in this phantom. Further, in combination with an updated version of our MITS software, the phantom enables validation of an AIMD model with only two routings, which results in substantially reduced testing times.

Dual Cylinder phantom (TFD) for field diversity testing with elongated AIMDs.

The DUAL-CYL-TFD phantom is fully compatible with ZMT's medical implant test systems MITS1.5 and MITS3.0 and can be used in both clinical and laboratory environments for the calibration and validation of AIMD RF-models (i.e., transfer function, generated with our piX System).

Customized racetrack shapes and implant holders can be provided upon request.






Transparent plexiglass (polymethylmethacrylate, PMMA)

Liquid compatibility

Compatible with sugar- and oil-based tissue simulating media (TSM).
Not compatible with TSM based on Triton or diethylene glycol monobutyl ether (DGBE).


Diameter: 440 mm; height; 260 mm (filling line: 190 mm);
Racetrack height 60 mm

Wall thickness

Sidewall 5 ± 0.2 mm
Bottom 10 ± 0.2 mm

Racetrack material

FR-4 glass-reinforced epoxy

Racetrack dimensions

Thickness: 2 mm
Predefined shapes e165y150 and PR165/DPR165
Customized racetrack shapes upon request.

Empty weight

Approximately 9.3 kg

Target values

Validation reports with complex incident field values along all lead paths are available for the following tissue simulating media (TSM):

Incident fields used in validation reports are included in full MRIxViP library.

Custom TSM validation reports can be provided on request.