Anatomical Characteristics of Myocardial Bridge in Patients With Myocardial Infarction by Multi-Detector Computed Tomography

• Takamura Kazuhisa

  Department of Cardiovascular Medicine, Toho University Omori Medical Center

• Fujimoto Shinichiro

  Department of Cardiovascular Medicine, Toho University Omori Medical Center

• Nanjo Shuji

  Department of Cardiovascular Medicine, Toho University Omori Medical Center

• Nakanishi Rine

  Department of Cardiovascular Medicine, Toho University Omori Medical Center

• Hisatake Shinji

  Department of Cardiovascular Medicine, Toho University Omori Medical Center

• Namiki Atsushi

  Department of Cardiovascular Medicine, Toho University Omori Medical Center

• Ishikawa Yukio

  Department of Pathology, Toho University School of Medicine

• Ishii Toshiharu

  Department of Pathology, Toho University School of Medicine

• Yamazaki Junichi

  Department of Cardiovascular Medicine, Toho University Omori Medical Center

抄録

Background: Recent development of multi-detector computed tomography (MDCT) has made the detection of myocardial bridge (MB) easier on the left anterior descending coronary artery (LAD). The LAD segment proximal to the MB is well known to be susceptible to atherosclerosis. Anatomical characteristics of MB on LAD in patients with myocardial infarction (MI) were examined by MDCT. Methods and Results: Subjects were 43 MI patients who had MB in the LAD and comprised 2 groups: 14 with culprit lesions in the LAD proximal to MB (culprit group) and 29 without culprit lesions in the LAD (non-culprit group). MB length, MB thickness, and the distance from the orifice of left main trunk (LMT) to MB entrance were compared. Age and coronary risk factors showed no significant difference between the 2 groups. MB length (P=0.011), MB thickness (P=0.035), and index of the length multiplied by thickness of MB (P=0.031) were significantly greater in the culprit group. The distance from the orifice of the LMT to MB entrance was significantly shorter in the culprit group (P=0.006). Conclusions: Anatomical properties of MB, such as length and thickness of MB as well as MB location, are associated with the formation of culprit lesions of LAD proximal to MB in MI. (Circ J 2011; 75: 642-648)<br>

収録刊行物

• Circulation Journal

  Circulation Journal 75 (3), 642-648, 2011

  一般社団法人 日本循環器学会

キーワード

• Multi-detector computed tomography
• Myocardial bridge
• Myocardial infarction

詳細情報

• CRID: 1390001205104995456
• NII論文ID: 10028102147
• NII書誌ID: AA11591968
• DOI: 10.1253/circj.cj-10-0679
• ISSN: 13474820
• ISSN: 13469843
• Web Site: https://www.jstage.jst.go.jp/article/circj/75/3/75_CJ-10-0679/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2011222766
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可