Impact on outcomes by measuring tortuosity with reporting standards for thoracic endovascular aortic repair Chun-Ku Chen, MD, I-Ping Liang, MD, Hsiao-Ting.

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Impact on outcomes by measuring tortuosity with reporting standards for thoracic endovascular aortic repair Chun-Ku Chen, MD, I-Ping Liang, MD, Hsiao-Ting Chang, MD, MS, Wei-Yuan Chen, MD, MS, I-Ming Chen, MD, Mei-Han Wu, MD, Ming-Huei Sheu, MD, Chun-Che Shih, MD, PhD Journal of Vascular Surgery Volume 60, Issue 4, Pages 937-944 (October 2014) DOI: 10.1016/j.jvs.2014.04.008 Copyright © 2014 Society for Vascular Surgery Terms and Conditions

Fig 1 Flow chart for patient selection. TEVAR, Thoracic endovascular aortic repair. Journal of Vascular Surgery 2014 60, 937-944DOI: (10.1016/j.jvs.2014.04.008) Copyright © 2014 Society for Vascular Surgery Terms and Conditions

Fig 2 Tortuosity and diameter measurement. A, The curved length of the aneurysm was measured along the central lumen line by extending 2.5 cm from the landing zone proximally and distally from the proximal and distal neck. B, The straight distance of the aneurysm was then measured from the proximal landing zone to the distal landing zone. The tortuosity is calculated by dividing the curved length by the straight distance. C, The maximal aneurysm diameter was measured perpendicular to the central luminal line. Journal of Vascular Surgery 2014 60, 937-944DOI: (10.1016/j.jvs.2014.04.008) Copyright © 2014 Society for Vascular Surgery Terms and Conditions

Fig 3 Evaluation of procedure characteristics. Bird-beak configuration (arrow) is noted in the oblique sagittal maximal intensity projection computed tomography (CT) image. Journal of Vascular Surgery 2014 60, 937-944DOI: (10.1016/j.jvs.2014.04.008) Copyright © 2014 Society for Vascular Surgery Terms and Conditions

Fig 4 Survival rates of patients with thoracic atherosclerotic aneurysms after thoracic endovascular aortic repair (TEVAR) were 92%, 92%, and 86% at 1, 3, and 5 years, respectively, for the low-tortuosity group and 73%, 63%, and 63% at 1, 3, and 5 years, respectively, for the high-tortuosity group. SE, Standard error. Journal of Vascular Surgery 2014 60, 937-944DOI: (10.1016/j.jvs.2014.04.008) Copyright © 2014 Society for Vascular Surgery Terms and Conditions

Fig 5 Endoleak-free survival for type I or type III endoleaks for thoracic atherosclerotic aneurysms in the low- and high-tortuosity groups after thoracic endovascular aortic repair (TEVAR). SE, Standard error. Journal of Vascular Surgery 2014 60, 937-944DOI: (10.1016/j.jvs.2014.04.008) Copyright © 2014 Society for Vascular Surgery Terms and Conditions