Hippocampal brain atrophy

Normalized thalamic volume relative to total intracranial volume, allowing for standardized assessment across individuals with different head sizes. This proportional measurement helps identify selective thalamic atrophy that might indicate specific neurological conditions including multiple sclerosis and certain dementias.

Normalized volume of the left parietal lobe relative to total intracranial volume. This proportional measurement helps identify selective left parietal atrophy that might affect language processing, calculation abilities, and right-sided sensory integration.

The volume of the left parietal lobe, which processes sensory information about the surrounding environment, spatial orientation, navigation, and some language functions.

The hippocampus is crucial for memory formation and spatial navigation. Atrophy of the hippocampus is a hallmark of Alzheimer's disease and can also occur in other forms of dementia. It is associated with memory loss and disorientation.

Represents the percentage or ratio of gray matter volume to total intracranial volume. This metric helps identify disproportionate gray matter loss that exceeds normal aging or is inconsistent with head size, potentially indicating neurodegenerative processes.

Normalized cortical gray matter volume relative to total intracranial volume, allowing for standardized assessment of cortical tissue across individuals with different head sizes.

The ratio of total brain volume to total intracranial volume. This value typically decreases with age as brain atrophy progresses. Accelerated decline in this ratio beyond age-expected norms may suggest pathological brain volume loss.