TissueDB/Materials/Psyllium

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Psyllium (psyllium husk, ispaghula) is a soluble fiber additive used in medical simulation to create parenchymal texture in gel-based tissue phantoms. When mixed with agar or gelatin, psyllium produces a fibrous internal structure that mimics the heterogeneous texture of liver and other solid organs on ultrasound.

Tissues

Tissue	Visual	Tactile	Simulator	Notes
Liver	Partial	Partial	1-2 tbsp psyllium per 100 ml agar. Pre-hydrate psyllium in water (5 min), cool agar to 60°C, add hydrated psyllium while stirring, pour into molds within 2-3 min. Combine with evaporated milk for echogenicity.	Ultrasound liver biopsy phantoms	Creates fibrous internal texture visible on ultrasound. Does not replicate liver elastic recoil.
Trachea	Partial	No	Mixed with beef gelatin and water; orange-coloured psyllium fiber.^[1]	Neonatal ETT Ultrasound Simulator (Qaim Ali)	Hollow cylinder in gelatin-psyllium block simulates air-filled tracheal lumen on transverse anterior neck ultrasound.^[1]
Esophagus	Partial	No	Mixed with beef gelatin and water; removable gelatin plug simulates ETT presence or absence in esophageal lumen.	Neonatal ETT Ultrasound Simulator (Qaim Ali)	Hollow cylinder in gelatin-psyllium block positioned inferior and posterior to simulated trachea on transverse anterior neck ultrasound.^[1]

References

↑ ^1.0 ^1.1 ^1.2 Merali HS, Tessaro MO, Ali KQ, Morris SK, Soofi SB, Ariff S (2019). "A novel training simulator for portable ultrasound identification of incorrect newborn endotracheal tube placement – observational diagnostic accuracy study protocol." BMC Pediatrics 19:434. DOI: 10.1186/s12887-019-1717-y. PMID: 31722685. PMC: PMC6852924.

At a Glance

Overview

Synonyms

Psyllium husk, ispaghula, ispaghula husk, Metamucil (trade). Regional: cáscara de psyllium (ES), tégument de psyllium (FR), Flohsamenschalen (DE), psillio (IT), psylliumvezels (NL).

Background

Clinical Context for Simulation

Processing & Preparation

Safety Considerations

Related Materials

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Authors	Arturopelayo
License	CC-BY-SA-4.0
Language	English (en)
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Created	January 28, 2026 by Arturo Pelayo
Last edit	May 25, 2026 by Arturo Pelayo
Cite as	Arturopelayo (2026). "TissueDB/Materials/Psyllium". Appropedia. Retrieved June 3, 2026.
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Page data
SDG
Authors	Arturopelayo
License	CC-BY-SA-4.0
Language	English (en)
Related	0 subpages, 4 pages link here
Views	20 page views (analytics)
Created	January 28, 2026 by Arturo Pelayo
Last edit	May 25, 2026 by Arturo Pelayo
Cite as	Arturopelayo (2026). "TissueDB/Materials/Psyllium". Appropedia. Retrieved June 3, 2026.
API queries	basic, semantic, html, files, more

[merali2019-1] 1.0 ^1.1 ^1.2 Merali HS, Tessaro MO, Ali KQ, Morris SK, Soofi SB, Ariff S (2019). "A novel training simulator for portable ultrasound identification of incorrect newborn endotracheal tube placement – observational diagnostic accuracy study protocol." BMC Pediatrics 19:434. DOI: 10.1186/s12887-019-1717-y. PMID: 31722685. PMC: PMC6852924.

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