Coexistence of vessel enlargement and paradoxical constriction in a diseased left anterior descending artery: an in vivo assessment using a new system for quantitative analysis of intracoronary ultrasound.
Previous studies based on conventional two-dimensional intravascular ultrasound revealed that coronary arteries can undergo either vessel enlargement and paradoxical constriction in response to plaque growth. We report a case in which the occurrence of vessel enlargement and paradoxical constriction was documented in the same coronary artery (left anterior descending). A multiple cross-section analysis was performed, using a novel 3-D system of reconstruction of IVUS images, which provides a large number of cross-sections within the reconstructed segments.
Prati
F
F
Laboratorio di Emodinamica, Ospedale S. Camillo, Roma.
Lioy
E
E
Pellegrini
A
A
Santoboni
S
S
D006332:Cardiomegaly / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D017023:Coronary Angiography; D003331:Coronary Vessels / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography; D014661:Vasoconstriction / Q000502:physiology*