calcification

Cerebral C-T scan and brain echogram revealed multiple calcification spots scattered on the frontal lobe, caudate nucleus and periventricular area.

两侧脑室周围白质两侧额叶皮质，可见多处小钙引点。

Calcification, air-bronchogram, cavity and pleural indentation of the lesion in the peripheral lung cancer were better displayed by spiral than by conventional CT.

螺旋CT扫描对病灶内钙、空泡、空气支气管、空洞病灶局部胸等征象均优于常规CT。