Related Experiment Video
Updated: Aug 19, 2026
Patient-Specific Polyvinyl Alcohol Phantom Fabrication with Ultrasound and X-Ray Contrast for Brain Tumor Surgery Planning
Published on: July 14, 2020
The design and testing of a solid phantom for the verification of a commercial 3D seed reconstruction algorithm
Frank-André Siebert1, Peter Kohr, György Kovács
1Interdisciplinary Brachytherapy Center, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str.9 24105 Kiel, Germany.
Background And Purpose:
To test the implementation of a new solid phantom and to study the accuracy and the reliability of 3D seed reconstruction algorithms in prostate seed implants.
Patients And Methods:
A solid phantom, the Kiel-phantom, to simulate prostate implants was designed. Several measurements were performed with this phantom to test the three-film seed reconstruction using a commercial planning system.
Results:
Precision of better than 0.1 mm (SD) were found for seed combinations when source projections do not overlap. If seeds overlapped from two or more gantry angles, the software showed serious miscomputations with seed displacements of more than 30.0mm.
Conclusions:
Systematic measurements were carried out which demonstrated that the solid phantom can be an advantageous tool to increase the quality assessment for seed planning systems.
