The correct spelling for the process of using ultrasound to study intracranial structures of the brain is:

A) ekoencephalagraphy.
B) echencefalagraphy.
C) echoencephalagraphy.
D) echoencephalography.

Echoencephalography

A non-invasive ultrasound technique used to study the brain's structures through the skull, particularly useful for detecting abnormalities.

Ultrasound

A diagnostic imaging technique that uses high-frequency sound waves to create images of structures within the body.

Intracranial Structures

Structures located within the cranium, including the brain, blood vessels, cranial nerves, and cerebrospinal fluid.