title: [Assessment of the time course of stunned myocardium with cardiac magnetic resonance imaging: a case report].
abstract: A 77-year-old woman with chest pain was admitted to our hospital for evaluation and treatment. Electrocardiography showed T-wave inversion in the I, aVL and V2-V6 leads. Emergency coronary angiography showed 75% stenosis in the left anterior descending artery. Left ventriculography demonstrated akinesis of the left ventricular apical region. Iodine-123-beta-methyl-p-iodophenyl-pentadecanoic acid radioactive isotope imaging showed an uptake defect in the apical region during the acute phase, but the defect disappeared 1 month later. Cine cardiac magnetic resonance (CMR) in the acute phase showed apical akinesis and hyperkinesis of the mid region, as observed by left ventriculography. Contrast magnetic resonance imaging with gadolinium showed no delayed hyperenhancement. One month later, cine CMR showed disappearance of the abnormal wall motion and contrast magnetic resonance imaging demonstrated no delayed hyperenhancement. CMR is useful to monitor changes in wall motion and wall thickening in the stunned myocardium.
authors.affiliation: Division of Cardiology, Department of Internal Medicine, Tokyo Medical University Hachioji Medical Center, Tokyo.
authors.forename: Shintaro
authors.initials: S
authors.lastname: Kiuchi
authors.forename: Kunihiko
authors.initials: K
authors.lastname: Teraoka
authors.forename: Masaharu
authors.initials: M
authors.lastname: Hirano
authors.forename: Masanobu
authors.initials: M
authors.lastname: Niwayama
authors.forename: Eiji
authors.initials: E
authors.lastname: Takahashi
authors.forename: Takayuki
authors.initials: T
authors.lastname: Morishima
authors.forename: Takashi
authors.initials: T
authors.lastname: Uchiyama
authors.forename: Yoshikazu
authors.initials: Y
authors.lastname: Nagai
authors.forename: Akira
authors.initials: A
authors.lastname: Yamashina
mesh_terms: D000368:Aged; D017023:Coronary Angiography; D004562:Electrocardiography; D005227:Fatty Acids; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging; D006801:Humans; D007457:Iodine Radioisotopes; D007462:Iodobenzenes; D019028:Magnetic Resonance Imaging, Cine; D017682:Myocardial Stunning / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011877:Radionuclide Imaging
chemical_list: D005227:Fatty Acids; D007457:Iodine Radioisotopes; D007462:Iodobenzenes; C049338:iodofiltic acid