CT scan test phantom HD-A03

for ultrasound imagingfor radiographyfor MRI

Overview
The Adult Head (Standard) phantom reproduces the average human male head anatomy for multimodal imaging (Ultrasound, MRI, X‑Ray/CT). Materials include ultra‑soft polyurethane for brain parenchyma and a three‑layer skull with diploë. Inflatable ventricles are included and can be filled with liquid for procedural and imaging validation.

Anatomy

• Skull
• Brain
  • Grey Matter
  • Brain Ventricles (lateral, third, fourth)
  • Brain Tumor (option)
  • Falx Cerebri
  • Brain Vessels (including Circle of Willis features)
  • One Bifurcation
  • Vessels connected with the neck
• Alignment Markings
• Acoustically correct skin‑mimicking material

Imaging & Functional Features
Designed for angiography validation and multimodal image quality assessment. Ventricles are inflatable and fillable (35 mL each). Compatible with common contrast agents: barium sulfate, iodine‑based, gadolinium‑based, microbubble and iron‑oxide agents. MRI tissue‑mimicking materials present realistic T2 relaxation values (suitable for T2‑weighted and proton‑density imaging); T1 values are lower (~100 ms) and less representative. Fully usable with CT (HU values provided) and diagnostic ultrasound (acoustic properties specified).

Ventricles (geometric details)
Inner diameter: 9.5 mm | Outer diameter: 15.1 mm | Tube attached to ventricles: ~50 mm length | Ventricles capacity: 35 mL each (inflatable and fillable)

Head Phantom Comparison (selected feature matrix)
Features | Dynamic, Adv. Head | Static Head | Dynamic Head | Standard Head | Training, V1 Head | Hematoma Head | Openable Head
Skull | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓
Openable and Removable Calvaria | ✓ | ✖ | ✖ | ✖ | ✖ | ✖ | ✓
Cervical Spine | ✖ | ✓ | ✖ | ✖ | ✓ | ✓ | ✖
Skin Mimicking Material | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓
Brain (Gray Matter) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✖
Brain Ventricles | ✓ | ✖ | ✖ | ✓ | ✖ | ✓ | ✖
Brain Tumor | ✖ | ✖ | ✖ | ✓ | ✖ | ✖ | ✖
Falx Cerebri | ✖ | ✖ | ✖ | ✓ | ✓ | ✓ | ✖
White Matter | ✖ | ✖ | ✖ | ✖ | ✓ | ✖ | ✖
Brain Vessels | ✓ (2mm,3mm,4mm Circle of Willis) | ✖ | ✓ (2mm,3mm,4mm Circle of Willis) | ✓ | ✖ | ✖ | ✖
One Bifurcation | ✓ | ✖ | ✓ | ✓ | ✖ | ✖ | ✖
One Stenosis | ✓ | ✖ | ✓ | ✖ | ✖ | ✖ | ✖
Two Aneurysms | ✓ | ✖ | ✓ | ✖ | ✖ | ✖ | ✖
Vessels Connected with the Neck | ✓ | ✖ | ✓ | ✓ | ✖ | ✖ | ✖
Plastic Connectors | ✓ | ✖ | ✓ | ✖ | ✖ | ✖ | ✖
Small Static Objects | ✖ | ✓ (0.5mm,1mm,2mm,3mm) | ✖ | ✖ | ✖ | ✖ | ✖
Realistic Air Cavities | ✖ | ✖ | ✖ | ✖ | ✓ | ✖ | ✖
Alignment Markings | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓
Frontal Sinus with Air Gaps | ✖ | ✖ | ✖ | ✖ | ✓ | ✖ | ✖
Hematoma (option) | ✖ | ✖ | ✖ | ✖ | ✖ | ✓ | ✖

Technical Properties (acoustic / MRI / ultrasound / CT)

• Cortical Bone — Sound Velocity: 3000 ± 30 m/s | Density: 2.31 g/cm³ | Hardness: N/A (Shore 00) | T2: N/A | Attenuation at 2.25 MHz: 6.4 ± 0.3 dB/cm
• Trabecular Bone — Sound Velocity: 2800 ± 50 m/s | Density: 2.03 g/cm³ | Hardness: N/A | T2: N/A | Attenuation at 2.25 MHz: 21 ± 2 dB/cm
• Brain Matter — Sound Velocity: 1400 ± 10 m/s | Density: 0.99 g/cm³ | Hardness: 20 (Shore 00) | T2: 70 ms | Attenuation at 2.25 MHz: 1.0 ± 0.2 dB/cm
• Tumor — Sound Velocity: 1400 ± 10 m/s | Density: 1.01 g/cm³ | Hardness: 30 (Shore 00) | T2: 65 ms | Attenuation at 2.25 MHz: 1.2 ± 0.2 dB/cm
• Skin / Body Tissue — Sound Velocity: 1400 ± 10 m/s | Density: 1.02 g/cm³ | Hardness: 60 (Shore 00, without protective coat) | T2: 50 ms | Attenuation at 2.25 MHz: 1.7 ± 0.2 dB/cm

Additional Technical Values

• Bone‑mimicking thermal conductivity: 0.776 W/m·K
• Volumetric specific heat capacity: 1.040 MJ/m³·K
• Thermal diffusivity: 0.746 mm²/s
• Thermal resistivity: 1.289 mK/W
• Specific heat: 0.978 J/g·°C
• Speed of sound (bone): 3070 m/s

HU Values of the Tissue‑Mimicking Materials (CT average)

• Brain Tissue: -25 HU
• Trabecular Bone: 800 HU
• Cortical Bone: 1300 HU
• Skin Tissue: -25 HU

Notes
All standard phantoms are coated with a protective harder urethane rubber layer to improve appearance and scratch resistance; this coating increases measured Shore 00 hardness by ~30 points relative to uncoated material. Small visual variations may occur due to material characteristics and manufacturing tolerances.