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Types of neurovascular symptoms and carotid plaque ultrasonic textural characteristics.
Author(s) -
Tegos T J,
Mavrophoros D,
Sabetai M M,
Elatrozy T S,
Dhanjil S,
Karapataki M,
Witt N,
Nicolaides A N
Publication year - 2001
Publication title -
journal of ultrasound in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 91
eISSN - 1550-9613
pISSN - 0278-4297
DOI - 10.7863/jum.2001.20.2.113
Subject(s) - amaurosis fugax , medicine , stenosis , asymptomatic , neurovascular bundle , stroke (engine) , cardiology , radiology , pathology , mechanical engineering , engineering
The aim of this study was to identify the echo morphology and stenosis of carotid plaques that corresponded to ipsilateral asymptomatic status, amaurosis fugax, hemispheric transient ischemic attack, and stroke. One hundred ninety‐two plaques (150 patients), producing stenosis in the range of 50% to 99% and associated with various neurovascular manifestations, were studied. These plaques were imaged on duplex scans, and a series of textural features was produced in a computer to distinguish quantitatively their various echo patterns. Amaurosis fugax corresponded to dark, severely stenosed atheromas (90%); hemispheric transient ischemic attack and stroke corresponded to plaques with intermediate echoic characteristics and intermediate stenosis (80%); and asymptomatic status corresponded to bright, moderately stenosed plaques (70%; P < .05). The significance of these findings is discussed.