Three-dimensional CT angiography for anatomic measurements of the carotid artery bifurcation

doi:10.3969/j.issn.2095-4344.2013.15.011

Abstract

Abstract:

BACKGROUND: Anatomic measurement is the basis of clinical medicines. It can provide basis and reference for clinical diagnosis and surgical operation. The anatomical measurement with 64-spiral CT angiography has the obvious technical superiority and good application prospect.
OBJECTIVE: To measure the anatomical structure of the carotid artery bifurcation with 64-spiral CT angiography, and to provide anatomic basis for relevant researches.
METHODS: A total of 92 subjects, who underwent 64-spiral CT angiography in head and neck without any pathology of carotid artery bifurcation from June 2008 to June 2010, were selected from Department of Radiology, Zhongshan Hospital Xiamen University. There were 40 male cases (≤40 years old) and 52 female cases (> 40 years old). The cross-sectional images were processed with three-dimensional imaging to obtain the three-dimensional image and to measure the anatomical structure of the carotid artery bifurcation.
RESULTS AND CONCLUSION: The three-dimensional images could clearly display the structure of carotid artery bifurcation and could achieve the mono- or multi-structure and multi-directional observation of structure. The measurement results showed the carotid artery bifurcation angle was (43.5±12.3)°, the distal inner diameter of the common carotid artery was (6.83±0.65) mm, the proximal inner diameter of the internal carotid artery enlargement area was (7.25±1.04) mm, the width of the internal carotid artery enlargement area was (8.15±1.35) mm, the distal inner diameter of the internal carotid artery enlargement area was (5.03±0.55) mm, and the inner diameter of the external carotid artery was (4.22±0.60) mm. Compared with the ≤ 40 years old group, the carotid artery bifurcation angle, proximal inner diameter of the internal carotid artery enlargement area, width of the internal carotid artery enlargement area and the distal inner diameter of the internal carotid artery enlargement area in the > 40 years old group were increased significantly, while the inner diameter of the external carotid artery was small (P < 0.05), and there was no significant difference in inner diameter of common carotid artery between two groups (P > 0.05). Compared with the male group, the measurement indexes of carotid artery bifurcation in the female group were significantly smaller (P < 0.05). The carotid artery bifurcation angle on the left side was bigger than that on the right side, and there were no significant differences in the other measurement indexes of carotid artery bifurcation between left and right group (P > 0.05). Three-dimensional CT image can objectively and accurately measure the anatomical values of carotid artery bifurcation. It has individual characteristics that can provide the objective basis for applied anatomy, disease diagnosis and surgery treatment.

Key words: tissue construction, vascular tissue construction, carotid artery bifurcation, internal carotid artery, external carotid artery, imaging, anatomical measurement, three-dimensional computed tomography, National Natural Science Foundation of China

CLC Number:

R318

Duan Shao-yin1, 2, Lin Chang-hua1, Jing Jing1, Yang Lie1, Lin Qing-chi1, 2. Three-dimensional CT angiography for anatomic measurements of the carotid artery bifurcation[J]. Chinese Journal of Tissue Engineering Research, doi: 10.3969/j.issn.2095-4344.2013.15.011.

Figures/Tables 3

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