Table 2.

Fabrication material characteristics under the medical imaging modalities

Modality	Specific characteristic
CT	Linear attenuation coefficient
	Effective atomic number
	Electron density
US	Velocity of sound
	Attenuation coefficient
	Acoustic impedance
	Backscatter coefficient
Scintillation camera imaging	Sensitivity
	Spatial resolution
	Count rate linearity
	Contrast recovery
MRI	Relaxation time T1 and T2
	Uniform relaxation times
	Chemical and physical stability
	pH and electric conductivity

MRI: Magnetic resonance imaging, CT: Computed tomography, US: Ultrasound