The orbit and superior orbital fissure as an acoustic window.
D000162:Acoustics; D001927:Brain Diseases / Q000175:diagnosis; D001932:Brain Neoplasms / Q000175:diagnosis; D004453:Echoencephalography; D004735:Energy Transfer; D006801:Humans; D008722:Methods; D009915:Orbit; D014159:Transducers