Feature-Tracking Strain Derived from Compressed Sensing Cine Cardiovascular Magnetic Resonance Imaging for Myocardial Infarct Detection: A Feasibility Study  

作　　者：Tomoro Morikawa Yuki Tanabe Tomoyuki Kido Ryo Ogawa Masashi Nakamura Sho Akasaka Kouki Watanabe Michaela Schmidt Osamu Yamaguchi Teruhito Kido Tomoro Morikawa;Yuki Tanabe;Tomoyuki Kido;Ryo Ogawa;Masashi Nakamura;Sho Akasaka;Kouki Watanabe;Michaela Schmidt;Osamu Yamaguchi;Teruhito Kido(Department of Radiology, Ehime University Graduate School of Medicine, Ehime, Japan;Department of Cardiology, Saiseikai Matsuyama Hospital, Ehime, Japan;Siemens Healthcare GmbH, Allee am Roethelheimpark, Erlangen, Germany;Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Ehime, Japan)

机构地区：[1]Department of Radiology, Ehime University Graduate School of Medicine, Ehime, Japan [2]Department of Cardiology, Saiseikai Matsuyama Hospital, Ehime, Japan [3]Siemens Healthcare GmbH, Allee am Roethelheimpark, Erlangen, Germany [4]Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Ehime, Japan

出　　处：《Open Journal of Radiology》2021年第3期101-114,共14页放射学期刊（英文）

摘　　要：<strong>Purpose: </strong>This study aimed to use gadolinium-enhanced cardiovascular magnetic resonance (LGE-CMR) scanning to examine the clinical feasibility of feature-tracking strain (FT-strain) analysis on compressed sensing (CS) cine cardiovascular magnetic resonance (CMR) imaging for detecting myocardial infarction (MI). <strong>Methods:</strong> We enrolled 37 patients who underwent conventional cine CMR, CS cine CMR, and LGE-CMR scanning to assess cardiovascular disease. FT-strain analysis was used to assess peak circumferential strain (p-CS) based on an 18-segment model in both cine CMR imaging modalities. Based on LGE-CMR imaging findings, myocardial segments were classified as remote, adjacent, subendocardial infarcted, and transmural infarcted. The diagnostic performance of p-CS for detecting MI was compared between CS cine CMR imaging and conventional cine CMR imaging using the receiver operating characteristic (ROC) curve analysis. <strong>Results:</strong> A total of 440 remote, 85 adjacent, 76 subendocardial infarcted, and 65 transmural infarcted segments were diagnosed on LGE-CMR imaging. There were significant between-group differences in p-CS on both conventional and CS cine CMR (p < 0.05 in each) imaging. The sensitivity and specificity of p-CS for identifying MI were 85% and 79% for conventional cine CMR imaging, and 82% and 77% for CS cine CMR imaging, respectively. There was no significant difference between conventional and CS cine CMR imaging in the area under the curve of p-CS (0.89 vs. 0.87, p = 0.15). <strong>Conclusion:</strong> FT-strain analysis of CS cine CMR imaging may help identify MI;it may be used alongside or instead of conventional CMR imaging.<strong>Purpose: </strong>This study aimed to use gadolinium-enhanced cardiovascular magnetic resonance (LGE-CMR) scanning to examine the clinical feasibility of feature-tracking strain (FT-strain) analysis on compressed sensing (CS) cine cardiovascular magnetic resonance (CMR) imaging for detecting myocardial infarction (MI). <strong>Methods:</strong> We enrolled 37 patients who underwent conventional cine CMR, CS cine CMR, and LGE-CMR scanning to assess cardiovascular disease. FT-strain analysis was used to assess peak circumferential strain (p-CS) based on an 18-segment model in both cine CMR imaging modalities. Based on LGE-CMR imaging findings, myocardial segments were classified as remote, adjacent, subendocardial infarcted, and transmural infarcted. The diagnostic performance of p-CS for detecting MI was compared between CS cine CMR imaging and conventional cine CMR imaging using the receiver operating characteristic (ROC) curve analysis. <strong>Results:</strong> A total of 440 remote, 85 adjacent, 76 subendocardial infarcted, and 65 transmural infarcted segments were diagnosed on LGE-CMR imaging. There were significant between-group differences in p-CS on both conventional and CS cine CMR (p < 0.05 in each) imaging. The sensitivity and specificity of p-CS for identifying MI were 85% and 79% for conventional cine CMR imaging, and 82% and 77% for CS cine CMR imaging, respectively. There was no significant difference between conventional and CS cine CMR imaging in the area under the curve of p-CS (0.89 vs. 0.87, p = 0.15). <strong>Conclusion:</strong> FT-strain analysis of CS cine CMR imaging may help identify MI;it may be used alongside or instead of conventional CMR imaging.

关 键 词：Cardiovascular Magnetic Resonance Cardiac Function Compressed Sensing Myocardial Infarction Myocardial Strain 

分 类 号：R54[医药卫生—心血管疾病]