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01-09-2012 | Original Article

Intravascular ultrasound appearance of scattered necrotic core as an index for deterioration of coronary flow during intervention in acute coronary syndrome

Authors: Kenji Sakata, Masa-aki Kawashiri, Hidekazu Ino, Takao Matsubara, Yoshihide Uno, Toshihiko Yasuda, Kenji Miwa, Honin Kanaya, Masakazu Yamagishi

Published in: Heart and Vessels | Issue 5/2012

Abstract

In acute coronary syndrome (ACS) patients with deterioration of coronary flow during percutaneous coronary intervention (PCI), a scattered necrotic core pattern (SNC) is observed by intravascular ultrasound virtual histology (VH-IVUS). The purpose of this study was to evaluate the impact of SNC on deterioration of coronary flow during PCI in ACS. A total of 38 ACS patients were imaged using VH-IVUS before PCI. In addition to conventional definitions of thin-cap fibroatheroma by VH-IVUS (ID-TCFA), the SNC was defined as necrotic core foci with a maximum diameter of <14 pixels on a 400 × 400 VH-IVUS image in the presence of >50% plaque burden except in the ID-TCFA frame. Patients were divided into deterioration of coronary flow group (n = 15) and normal-reflow group (n = 23). The incidence of residual thrombus and plaque rupture, the external elastic membrane, plaque and fibrous volumes, the incidence of ID-TCFA and the average number of SNC per frame was significantly greater in deterioration of coronary flow group than in normal-reflow group (all parameters P < 0.05). Multivariate analysis revealed that the average number of SNC per frame was independently associated with deterioration of coronary flow in ACS patients (odds ratio 1.18, P < 0.05). In conclusion, an increased number of SNC is associated with deterioration of coronary flow during PCI in ACS patients.

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Title: Intravascular ultrasound appearance of scattered necrotic core as an index for deterioration of coronary flow during intervention in acute coronary syndrome
Authors: Kenji Sakata
Masa-aki Kawashiri
Hidekazu Ino
Takao Matsubara
Yoshihide Uno
Toshihiko Yasuda
Kenji Miwa
Honin Kanaya
Masakazu Yamagishi
Publication date: 01-09-2012
Publisher: Springer Japan
Published in: Heart and Vessels / Issue 5/2012
Print ISSN: 0910-8327
Electronic ISSN: 1615-2573
DOI: https://doi.org/10.1007/s00380-011-0175-8

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Intravascular ultrasound appearance of scattered necrotic core as an index for deterioration of coronary flow during intervention in acute coronary syndrome

Abstract

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Abstract

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