Defining anatomic variants of the coronary artery in Taiwanese subjects using 64-multidetector-row computed tomography

Hung Jung Wang, Ting Kai Leung, Chi Ming Lee, Wei Hsing Lee, Li Kuo Shen, Ya Yen Chen

Research output: Contribution to journalArticle


The newly developed 64-multidetector-row computed tomography (MDCT) prompted us to evaluate coronary angiography using this noninvasive method. We reviewed 281 images of MDCT coronary angiography in Taiwanese. The origins of the coronary arteries were identified from the luminal aspect of the aorta. We described them as seen from the aortic sinus looking toward the cardiac ventricle. The sinus facing the left ventricle was designated sinus 1, and that facing the right ventricle was designated sinus 2. Anatomic variants of the coronary artery were divided into five types according to the structure of the left anterior descending artery, right coronary artery, and left circumflex artery. Of the 281 patients, 275 (97.9%) had the type I variant in which the right coronary artery originated from sinus 2. MDCT provides advantages in defining anatomic variation and helps in the planning of clinical therapy or surgery.

Original languageEnglish
Pages (from-to)883-886
Number of pages4
JournalJournal of the Formosan Medical Association
Issue number10
Publication statusPublished - Oct 2007



  • Computed tomography
  • Coronary angiography
  • Coronary vessels

ASJC Scopus subject areas

  • Medicine(all)

Cite this