Ultrasound attenuation behind coronary atheroma without calcification: mechanism revealed by autopsy.
When performing intravascular ultrasound studies, the backward echo image can show marked attenuation, although there are no calcified deposits and it may be impossible to detect the intraplaque architecture. The pathology underlying this phenomenon was investigated in autopsy specimens. We hypothesize that the mechanism responsible for the attenuation involves micro-calcification and lipid in unstable plaques causing ultrasonic wave reflection and dispersion.
Hara
Hisao
H
Tsunoda
Taro
T
Moroi
Masao
M
Kubota
Tetsuya
T
Kunimasa
Taeko
T
Shiba
Masanori
M
Wada
Masamichi
M
Tsuji
Takahiro
T
Iijima
Raisuke
R
Nakajima
Rintaro
R
Yoshitama
Takashi
T
Nakamura
Masato
M
D050197:Atherosclerosis / Q000000981:diagnostic imaging* / Q000473:pathology; D001344:Autopsy; D002114:Calcinosis / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging* / Q000473:pathology; D003331:Coronary Vessels / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D018084:Ultrasonography, Interventional