GELATINE - GLASS MICROBUBBLES HYDROCOLLOID AS POTENTIAL MEDICAL PHANTOM MATERIAL IN COMPUTED TOMOGRAPHY

Authors

  • Ginka Exner Plovdiv university Paisii Hilendarski
  • Veselina Georgieva Plovdiv University Paisii Hilendarski and UMBAL St. Georgi
  • Yordan Marinov Georgi Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences
  • Georgi Tankovski Plovdiv University Paisii Hilendarski
  • Nikoleta Traikova UMBAL St. Georgi

DOI:

https://doi.org/10.59957/jctm.v61.i1.2026.3

Keywords:

Medical phantoms, lung and adipose tissues, gelatine hydrocolloids, tissue mimicking materials, computed tomography, glass microbubbles

Abstract

In the present study, gelatine - based hydrocolloids with glass microbubbles were designed and investigated as potential tissue mimicking materials for adipose and lung tissues in Computed tomography. Hydrocolloids contained 0.04 or 0.08 g mL-1 gelatine and glass microbubbles in the range 0.04 - 0.28 g.mL-1. Hounsfield units were derived for voltages in the range 70 - 120 kVp. All obtained values were negative with limits from about - 10 HU to about -445 HU. Mechanical performance was also investigated, giving comparatively high Young’s modulus up to about 1.2 MPa. Hounsfield units’ further decrease might be possible by 3D printing of the hydrocolloids, when printed with a speed from 60 to 90 mL h-1, at a minimum temperature of 40 oC. Printability is limited up to 0.20 g mL-1 glass
microbubbles concentration. 

Author Biography

Veselina Georgieva, Plovdiv University Paisii Hilendarski and UMBAL St. Georgi

The author has two affiliations

Plovdiv University Paisii Hilendarski

and UMBAL St. Georgi

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Published

2026-01-03

Issue

Vol. 61 No. 1 (2026)

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Articles

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