Biomechanics data of human supra-aortic trunks and abdominal visceral arteries harvested during autopsy

The present dataset describes the biomechanical properties of the supra-aortic trunks (brachiocephalic trunk, left common carotid artery, and left subclavian artery) and some of the visceral branches of the abdominal aorta (celiac trunk, superior mesenteric artery, and renal arteries). The specimens have been harvested from 27 adult donors during the autopsy procedure. The vessels were submitted to uniaxial biomechanical tensile tests, and values of failure stress, failure tension, and failure strain were obtained. As atherosclerosis could affect any of those vessels producing a significant reduction in their lumen, the data presented here could be of great interest to vascular surgeons, interventional cardiologists, and interventional neuroradiologists, who manipulate these arteries endovascularly. The observations gathered here are experimental evidence of the vessels’ endurance against tearing and of their deformability. Therefore this data article could also help the medical industry dedicated to the production of endovascular devices. This dataset is related to the article entitled “Left Common Carotid Artery Biomechanical Properties in Individuals over 80 years: Women Have Stiffer Vessels” published in Annals of Vascular Surgery in August 2020 [1].

article entitled "Left Common Carotid Artery Biomechanical Properties in Individuals over 80 years: Women Have Stiffer Vessels" published in Annals of Vascular Surgery in August 2020 [1] .
© 2020 The Author(s The cadaveric specimens were randomly harvested. Description of data collection During autopsy procedure, the whole aorta (thoracic and abdominal parts) was harvested along with its main branches (brachiocephalic trunk, left common carotid artery, left subclavian artery, celiac trunk, superior mesenteric artery and renal arteries). These branches were carefully dissected and collected for biomechanical analysis through uniaxial tensile test, which evaluated the following variables: failure stress, failure tension, and failure strain. Data

Value of the Data
• The present data are experimental information regarding the biomechanical behavior of supra-aortic trunks and visceral arteries. Considering that some of those arteries are frequently manipulated during endovascular procedures, it is of great relevance knowing their resistance against tearing and compliance. • As these arteries are manipulated during endovascular procedures, their biomechanical behavior could be precious information, especially to vascular surgeons, interventional neuroradiologists as well as to interventional cardiologists. • The present data could be especially useful for the development of new endovascular materials, like stents and catheters, used in the supra-aortic trunks and visceral arteries.
• The knowledge of the biomechanical properties of the abovementioned arteries could better instruct the professionals and industry that deal with this vessels, aiming safer surgical procedures and high quality endovascular devices.

Data Description
File name File Description CASE 1 Biomechanical test of left renal artery -excel file related to the chart: this excel file contains precisely all the information that enabled the creation of the chart related to this sample. It comprises critical data such as displacement observed during the tensile test (mm), the load applied (N), strain (deformation), tension (N/cm), and stress (N/m2). CASE1aret.TXT Biomechanical test of left renal artery -biomechanical test report: the biomechanical test device produces a report detailing the experiments' conditions, such as temperature and humidity, as well as the width and thickness of the sample. CASE 2 Biomechanical test of left subclavian artery -excel file related to the chart: this excel file contains precisely all the information that enabled the creation of the chart related to this sample. It comprises critical data such as displacement observed during the tensile test (mm), the load applied (N), strain (deformation), tension (N/cm), and stress (N/m2). CASE2ascet.TXT Biomechanical test of left subclavian artery -biomechanical test report: the biomechanical test device produces a report detailing the experiments' conditions, such as temperature and humidity, as well as the width and thickness of the sample.
( continued on next page ) Biomechanical test of brachiocephalic trunk -excel file related to the chart: this excel file contains precisely all the information that enabled the creation of the chart related to this sample. It comprises critical data such as displacement observed during the tensile test (mm), the load applied (N), strain (deformation), tension (N/cm), and stress (N/m2). CASE2tbct.TXT Biomechanical test of brachiocephalic trunk -biomechanical test report: the biomechanical test device produces a report detailing the experiments' conditions, such as temperature and humidity, as well as the width and thickness of the sample. CASE 3 Biomechanical test of left subclavian artery -excel file related to the chart: this excel file contains precisely all the information that enabled the creation of the chart related to this sample. It comprises critical data such as displacement observed during the tensile test (mm), the load applied (N), strain (deformation), tension (N/cm), and stress (N/m2). CASE3ascet.TXT Biomechanical test of left subclavian artery -biomechanical test report: the biomechanical test device produces a report detailing the experiments' conditions, such as temperature and humidity, as well as the width and thickness of the sample.
( continued on next page ) Biomechanical test of brachiocephalic trunk -excel file related to the chart: this excel file contains precisely all the information that enabled the creation of the chart related to this sample. It comprises critical data such as displacement observed during the tensile test (mm), the load applied (N), strain (deformation), tension (N/cm), and stress (N/m2). CASE3tbct.TXT Biomechanical test of brachiocephalic trunk -biomechanical test report: the biomechanical test device produces a report detailing the experiments' conditions, such as temperature and humidity, as well as the width and thickness of the sample. CASE 4 Biomechanical test of left renal artery -excel file related to the chart: this excel file contains precisely all the information that enabled the creation of the chart related to this sample. It comprises critical data such as displacement observed during the tensile test (mm), the load applied (N), strain (deformation), tension (N/cm), and stress (N/m2). CASE4aret.TXT Biomechanical test of left renal artery -biomechanical test report: the biomechanical test device produces a report detailing the experiments' conditions, such as temperature and humidity, as well as the width and thickness of the sample. CASE 5 Biomechanical test of celiac trunk -excel file related to the chart: this excel file contains precisely all the information that enabled the creation of the chart related to this sample. It comprises critical data such as displacement observed during the tensile test (mm), the load applied (N), strain (deformation), tension (N/cm), and stress (N/m2). CASE5tct.TXT Biomechanical test of celiac trunk -biomechanical test report: the biomechanical test device produces a report detailing the experiments' conditions, such as temperature and humidity, as well as the width and thickness of the sample. CASE 6 Biomechanical test of left renal artery -excel file related to the chart: this excel file contains precisely all the information that enabled the creation of the chart related to this sample. It comprises critical data such as displacement observed during the tensile test (mm), the load applied (N), strain (deformation), tension (N/cm), and stress (N/m2). Biomechanical test of left common carotid artery -excel file related to the chart: this excel file contains precisely all the information that enabled the creation of the chart related to this sample. It comprises critical data such as displacement observed during the tensile test (mm), the load applied (N), strain (deformation), tension (N/cm), and stress (N/m2).
Biomechanical test of brachiocephalic trunk -excel file related to the chart: this excel file contains precisely all the information that enabled the creation of the chart related to this sample. It comprises critical data such as displacement observed during the tensile test (mm), the load applied (N), strain (deformation), tension (N/cm), and stress (N/m2).

CASE19tbct.TXT
Biomechanical test of brachiocephalic trunk -biomechanical test report: the biomechanical test device produces a report detailing the experiments' conditions, such as temperature and humidity, as well as the width and thickness of the sample. CASE 20 Biomechanical test of celiac trunk -excel file related to the chart: this excel file contains precisely all the information that enabled the creation of the chart related to this sample. It comprises critical data such as displacement observed during the tensile test (mm), the load applied (N), strain (deformation), tension (N/cm), and stress (N/m2).
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* biomechanical uniaxial test
The aortic branches submitted to biomechanical analysis were: brachiocephalic trunk, left carotid artery, left subclavian artery, celiac trunk, superior mesenteric artery, and renal arteries. During the autopsy procedure, the whole aorta (thoracic and abdominal parts, up to the iliac vessels) was harvested along with its branches. They were then frozen and stored for the shorter period possible, as the autopsy procedure could happen when there were not available collaborators to run the experiment. Stemper et al. [3] experimentally observed no significant difference in biomechanical behavior between fresh vessel samples and frozen specimens up to 90 days. At the date assigned for the experiment, each aorta was carefully defrosted at room temperature, dissected, and samples were collected from its branches. The aortas were directed to a different research protocol.
The collected arterial segments were kept in a 0.9% saline solution chilled at 4 °C until the biomechanical test was executed within the maximum period of 48 hrs after dissection. The arteries were longitudinally opened and sectioned in strips 4 mm wide for the biomechanical tensile test. Then, the fragments were attached to a clamp system connected to the INSTRON SPEC 2200 device, responsible for pulling the fragments during the uniaxial tensile test. The test was coordinated using INSPEC software. Its standardization was established for aorta samples by Raghavan et al. [4] , and was largely reproduced in posterior works [ 5 , 6 ]. The association between deformation values and respective strength values (stress) is made through the PC throughout the tensile test, using the software SERIES IX. A graph denominated elastic diagram is generated.
The uniaxial biomechanical properties measured were: failure stress, failure tension, and failure strain.

Ethics Statement
The dataset was approved by the institutional review board (Ethical Committee of University of São Paulo School of Medicine #263/15 and #0027/17). All specimens were harvested during autopsy procedure in the Service for verification of death of University of São Paulo (SVOC -USP). Family members of the donors sign an informed consent applied by the SVOC -USP.

Declaration of Competing Interest
The authors declare that they have no known competing financial interests or personal relationships which have, or could be perceived to have, influenced the work reported in this article.