Characteristics

CT

MRI

Matrix size(Pixel)

512×512

256×256

Voxel size(mm)

0.5×0.5×2.0

0.5×0.5×1.5
(gap)

Density resolution

4096 levels (12 bit)

128 levels (16 bit)

Signal to noise ratio

High

Moderate

Segmentation

Threshold

Complex

Porotocol

Simple (radiation)

Complex (benign)

Table 1: Characteristics comparison of CT and MRI.