Properties and Storage Methods of the Stratathane ST-504–Based Neurosurgical Tumor Model: Comprehensive Analysis

摘要: Background Constrains on neurosurgical residents' work hours demand innovative teaching models to complement the traditional “in operating room” model. Stratathane ST-504 (Strata-Tech, Inc., Des Moines, Iowa, USA) has been proposed as a useful artificial tumor The consistency, dissectability, and radio-opacity of this model strongly depend its preparation storage. However, little addressed interplay these properties. Hence our study was undertaken explore properties ST-504, preparation, storage how interactions affect consistency. Methods Tumor mixture prepared by mixing 4.5 mL water, 1.5 computed tomography contrast medium, 2 mL 0.5 mg turmeric powder. either allowed solidify, yielding solid blocks, or injected into an anatomic specimen create Both blocks were stored at different temperature, under conditions for time. Their volumes, appearance, consistency evaluated. Results in water ethanol absorbed fluid, resulting enlargement associated decrease radiodensity same results were displayed implanted cadaveric specimen. Conclusion For any given ratio ST-504/water, time sequence after polymer solidification method determine appearance block/model. When taking consideration, ST-504–based can be customized dissection practices, from more (meningioma-like) less (schwannoma-like) models.