抄録
Purpose: Previously we reported that the carotid artery (CA) moved longitudinally. In the presented study, we investigated the movement of the CA with or without breath hold (BH) to clarify if the respiration might attribute to the longitudinal movement.
Methods: All subjects underwent carotid ultrasonography between November 2016 and December 2017. A total of 39 vessels with 78 lesions, which had plaques in both ipsilateral ICA (n = 39) and CCA (n = 39) was evaluated. The template matching method was used to measure the total length of the CA movement.
Results: The movement of region of interests in plaques was significantly larger in the group without BH than that in the group with BH (p < 0.0001). In case without breath hold, the total length of the movement in the CCA (3.05 ± 0.40mm) was larger than that in the ICA (1.32 ± 0.14mm) (p = 0.001).
Discussion: Movement of the CA was found to be more affected by breathing. The anatomical condition (i.e., distance from the lung) would be the main reason why the length of wall movement is larger in the CCA than in the ICA.
Conclusion: movement of the CA associates with not only by the pulsation but also by breathing.
