Mathematical analysis (fast Fourier transform) of the ultrasonic echo pulsation curve in brain diseases.
The ultrasonic pulsation curve can be analysed by the computer. This technique has been useful for measuring haemodynamics. We detected prodromal signs of rebleeding from an intracranial aneurysm.
D000293:Adolescent; D000328:Adult; D001927:Brain Diseases / Q000175:diagnosis* / Q000503:physiopathology; D002560:Cerebrovascular Circulation; D002648:Child; D002675:Child, Preschool; D005583:Fourier Analysis; D006801:Humans; D002532:Intracranial Aneurysm / Q000175:diagnosis; D008875:Middle Aged; D010991:Plethysmography / Q000379:methods*; D014463:Ultrasonography