title: Dear Editor.
authors.forename: Zbigniew
authors.initials: Z
authors.lastname: Stelmasiak
authors.forename: Joanna
authors.initials: J
authors.lastname: Wojczal
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017130:Angioplasty; D001783:Blood Flow Velocity; D002343:Carotid Artery, Internal / Q000601:surgery; D016893:Carotid Stenosis / Q000000981:diagnostic imaging / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D020768:Middle Cerebral Artery / Q000000981:diagnostic imaging*; D012039:Regional Blood Flow; D015607:Stents; D014463:Ultrasonography