{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,19]],"date-time":"2026-06-19T12:54:13Z","timestamp":1781873653442,"version":"3.54.5"},"reference-count":45,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"2","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Circ: Cardiovascular Imaging"],"published-print":{"date-parts":[[2014,3]]},"abstract":"<jats:sec>\n            <jats:title>Background\u2014<\/jats:title>\n            <jats:p>Tagged cardiac magnetic resonance provides detailed information on regional myocardial function and mechanical behavior. T1 mapping by cardiac magnetic resonance allows noninvasive quantification of myocardial extracellular expansion (ECE), which has been related to interstitial fibrosis in previous clinical and subclinical studies. We assessed sex-associated differences in the relation of ECE to left ventricular (LV) remodeling and myocardial systolic and diastolic deformation in a large community-based multiethnic population.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods and Results\u2014<\/jats:title>\n            <jats:p>\n              Midventricular midwall peak circumferential shortening and early diastolic strain rate and LV torsion and torsional recoil rate were determined using cardiac magnetic resonance tagging. Midventricular short-axis T1 maps were acquired in the same examination pre- and postcontrast injection using Modified Look-Locker Inversion-Recovery sequence. Multivariable linear regression (estimated regression coefficient,\n              <jats:italic>B<\/jats:italic>\n              ) was used to adjust for risk factors and subclinical disease measures. Of 1230 participants, 114 had a visible myocardial scar by late gadolinium enhancement. Participants without a visible myocardial scar (n=1116) had no history of previous clinical events. In the latter group, multivariable linear regression demonstrated that lower postcontrast T1 times, reflecting greater ECE, were associated with lower circumferential shortening (\n              <jats:italic>B<\/jats:italic>\n              =\u22120.1;\n              <jats:italic>P<\/jats:italic>\n              =0.0001), lower LV end-diastolic volume index (\n              <jats:italic>B<\/jats:italic>\n              =0.6;\n              <jats:italic>P<\/jats:italic>\n              =0.0001), and lower LV end-diastolic mass index (\n              <jats:italic>B<\/jats:italic>\n              =0.4;\n              <jats:italic>P<\/jats:italic>\n              =0.0001). In addition, lower postcontrast T1 times were associated with lower early diastolic strain rate (\n              <jats:italic>B<\/jats:italic>\n              =0.01;\n              <jats:italic>P<\/jats:italic>\n              =0.03) in women only and lower LV torsion (\n              <jats:italic>B<\/jats:italic>\n              =0.005;\n              <jats:italic>P<\/jats:italic>\n              =0.03) and lower LV ejection fraction (B=0.2,\n              <jats:italic>P<\/jats:italic>\n              =0.01) in men only.\n            <\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions\u2014<\/jats:title>\n            <jats:p>Greater ECE is associated with reduced LV end-diastolic volume index and LV end-diastolic mass index in a large multiethnic population without history of previous cardiovascular events. In addition, greater ECE is associated with reduced circumferential shortening, lower early diastolic strain rate, and a preserved ejection fraction in women, whereas in men, greater ECE is associated with greater LV dysfunction manifested as reduced circumferential shortening, reduced LV torsion, and reduced ejection fraction.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1161\/circimaging.113.001073","type":"journal-article","created":{"date-parts":[[2014,2,19]],"date-time":"2014-02-19T05:17:04Z","timestamp":1392787024000},"page":"292-302","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":90,"title":["Interstitial Fibrosis, Left Ventricular Remodeling, and Myocardial Mechanical Behavior in a Population-Based Multiethnic Cohort"],"prefix":"10.1161","volume":"7","author":[{"given":"Sirisha","family":"Donekal","sequence":"first","affiliation":[{"name":"From the Department of Cardiology, Johns Hopkins University, Baltimore, MD (S.D., Y.C.L., B.A.V., K.Y., J.A.C.L.); Office of Biostatistics Research, National Heart, Lung, and Blood Institute, Bethesda, MD (C.O.W.); Department of Internal Medicine\/Cardiology, Wake Forest University Health Sciences, Winston-Salem, NC (W.G.H.); Department of Radiology, UCLA School of Medicine (A.S.G.); and National Institutes of Health Clinical Center, National Institute of Biomedical Imaging and Bioengineering,..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bharath A.","family":"Venkatesh","sequence":"additional","affiliation":[{"name":"From the Department of Cardiology, Johns Hopkins University, Baltimore, MD (S.D., Y.C.L., B.A.V., K.Y., J.A.C.L.); Office of Biostatistics Research, National Heart, Lung, and Blood Institute, Bethesda, MD (C.O.W.); Department of Internal Medicine\/Cardiology, Wake Forest University Health Sciences, Winston-Salem, NC (W.G.H.); Department of Radiology, UCLA School of Medicine (A.S.G.); and National Institutes of Health Clinical Center, National Institute of Biomedical Imaging and Bioengineering,..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuan Chang","family":"Liu","sequence":"additional","affiliation":[{"name":"From the Department of Cardiology, Johns Hopkins University, Baltimore, MD (S.D., Y.C.L., B.A.V., K.Y., J.A.C.L.); Office of Biostatistics Research, National Heart, Lung, and Blood Institute, Bethesda, MD (C.O.W.); Department of Internal Medicine\/Cardiology, Wake Forest University Health Sciences, Winston-Salem, NC (W.G.H.); Department of Radiology, UCLA School of Medicine (A.S.G.); and National Institutes of Health Clinical Center, National Institute of Biomedical Imaging and Bioengineering,..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chia-Ying","family":"Liu","sequence":"additional","affiliation":[{"name":"From the Department of Cardiology, Johns Hopkins University, Baltimore, MD (S.D., Y.C.L., B.A.V., K.Y., J.A.C.L.); Office of Biostatistics Research, National Heart, Lung, and Blood Institute, Bethesda, MD (C.O.W.); Department of Internal Medicine\/Cardiology, Wake Forest University Health Sciences, Winston-Salem, NC (W.G.H.); Department of Radiology, UCLA School of Medicine (A.S.G.); and National Institutes of Health Clinical Center, National Institute of Biomedical Imaging and Bioengineering,..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kihei","family":"Yoneyama","sequence":"additional","affiliation":[{"name":"From the Department of Cardiology, Johns Hopkins University, Baltimore, MD (S.D., Y.C.L., B.A.V., K.Y., J.A.C.L.); Office of Biostatistics Research, National Heart, Lung, and Blood Institute, Bethesda, MD (C.O.W.); Department of Internal Medicine\/Cardiology, Wake Forest University Health Sciences, Winston-Salem, NC (W.G.H.); Department of Radiology, UCLA School of Medicine (A.S.G.); and National Institutes of Health Clinical Center, National Institute of Biomedical Imaging and Bioengineering,..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Colin O.","family":"Wu","sequence":"additional","affiliation":[{"name":"From the Department of Cardiology, Johns Hopkins University, Baltimore, MD (S.D., Y.C.L., B.A.V., K.Y., J.A.C.L.); Office of Biostatistics Research, National Heart, Lung, and Blood Institute, Bethesda, MD (C.O.W.); Department of Internal Medicine\/Cardiology, Wake Forest University Health Sciences, Winston-Salem, NC (W.G.H.); Department of Radiology, UCLA School of Medicine (A.S.G.); and National Institutes of Health Clinical Center, National Institute of Biomedical Imaging and Bioengineering,..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcelo","family":"Nacif","sequence":"additional","affiliation":[{"name":"From the Department of Cardiology, Johns Hopkins University, Baltimore, MD (S.D., Y.C.L., B.A.V., K.Y., J.A.C.L.); Office of Biostatistics Research, National Heart, Lung, and Blood Institute, Bethesda, MD (C.O.W.); Department of Internal Medicine\/Cardiology, Wake Forest University Health Sciences, Winston-Salem, NC (W.G.H.); Department of Radiology, UCLA School of Medicine (A.S.G.); and National Institutes of Health Clinical Center, National Institute of Biomedical Imaging and Bioengineering,..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antoinette S.","family":"Gomes","sequence":"additional","affiliation":[{"name":"From the Department of Cardiology, Johns Hopkins University, Baltimore, MD (S.D., Y.C.L., B.A.V., K.Y., J.A.C.L.); Office of Biostatistics Research, National Heart, Lung, and Blood Institute, Bethesda, MD (C.O.W.); Department of Internal Medicine\/Cardiology, Wake Forest University Health Sciences, Winston-Salem, NC (W.G.H.); Department of Radiology, UCLA School of Medicine (A.S.G.); and National Institutes of Health Clinical Center, National Institute of Biomedical Imaging and Bioengineering,..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"W. Gregory","family":"Hundley","sequence":"additional","affiliation":[{"name":"From the Department of Cardiology, Johns Hopkins University, Baltimore, MD (S.D., Y.C.L., B.A.V., K.Y., J.A.C.L.); Office of Biostatistics Research, National Heart, Lung, and Blood Institute, Bethesda, MD (C.O.W.); Department of Internal Medicine\/Cardiology, Wake Forest University Health Sciences, Winston-Salem, NC (W.G.H.); Department of Radiology, UCLA School of Medicine (A.S.G.); and National Institutes of Health Clinical Center, National Institute of Biomedical Imaging and Bioengineering,..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David A.","family":"Bluemke","sequence":"additional","affiliation":[{"name":"From the Department of Cardiology, Johns Hopkins University, Baltimore, MD (S.D., Y.C.L., B.A.V., K.Y., J.A.C.L.); Office of Biostatistics Research, National Heart, Lung, and Blood Institute, Bethesda, MD (C.O.W.); Department of Internal Medicine\/Cardiology, Wake Forest University Health Sciences, Winston-Salem, NC (W.G.H.); Department of Radiology, UCLA School of Medicine (A.S.G.); and National Institutes of Health Clinical Center, National Institute of Biomedical Imaging and Bioengineering,..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joao A.C.","family":"Lima","sequence":"additional","affiliation":[{"name":"From the Department of Cardiology, Johns Hopkins University, Baltimore, MD (S.D., Y.C.L., B.A.V., K.Y., J.A.C.L.); Office of Biostatistics Research, National Heart, Lung, and Blood Institute, Bethesda, MD (C.O.W.); Department of Internal Medicine\/Cardiology, Wake Forest University Health Sciences, Winston-Salem, NC (W.G.H.); Department of Radiology, UCLA School of Medicine (A.S.G.); and National Institutes of Health Clinical Center, National Institute of Biomedical Imaging and Bioengineering,..."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","reference":[{"key":"e_1_3_4_2_2","first-page":"673","article-title":"Cardiac remodeling at the population level\u2014risk factors, screening, and outcomes.","volume":"8","author":"Gjesdal O","year":"2011","unstructured":"Gjesdal O, Bluemke DA, Lima JA. 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Aging and cardiac fibrosis. 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