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.
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)
