**4. Imaging methods**

Various methods are used to visualize calcifications. Macrocalcifications can be seen in three ways:

1.Speckled: spotty calcification flecks, up to 50 μm diameters

2.Sheetlike fragments: linear or wide single focus of calcium, >2 mm in diameter

3.Diffuse: segments of continuous calcification, ≥5 mm in diameter

Imaging methods can be performed as noninvasive and invasive (**Table 2**).
