Mechanical properties of the wall of the human abdominal aorta after endarterectomy

Purinya, B. A.; Kasyanov, Vladimir

doi:10.1007/bf00856792

Cited by 6 publications

(5 citation statements)

References 9 publications

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“…These values correlate well with the thicknesses documented in Holzapfel et al [54] for the non-atherosclerotic abdominal aortas, while in a multiethnic study of atherosclerosis, the observed aortic wall thicknesses were significantly higher, in the range 2.11-2.32 + 0.06 mm [55]. A similar result was shown for aortas with second-or third-degree atherosclerosis, where increased wall thickness was documented [56].…”

Section: Wall Thickness Measurementssupporting

confidence: 88%

“…While the overall trend is consistent with documented data [55,56], we would expect a stronger dependence of tissue thickness with age if younger subjects (with very little or no intimal thickening) were included in our analysis.…”

Section: Wall Thickness Measurementssupporting

confidence: 86%

“…Despite the limited number of subjects and their relatively advanced age (63.0 + 15.3 year) we found that wall thickening depends (slightly) on age, as shown in figure 7. While the overall trend is consistent with documented data [55,56], we would expect a stronger dependence of tissue thickness with age if younger subjects (with very little or no intimal thickening) were included in our analysis.…”

Section: Wall Thickness Measurementssupporting

confidence: 86%

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Determination of the layer-specific distributed collagen fibre orientations in human thoracic and abdominal aortas and common iliac arteries

Schriefl

Zeindlinger

Pierce

et al. 2011

J. R. Soc. Interface.

314

294

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The established method of polarized microscopy in combination with a universal stage is used to determine the layer-specific distributed collagen fibre orientations in 11 human non-atherosclerotic thoracic and abdominal aortas and common iliac arteries (63 + 15.3 years, mean + s.d.). A dispersion model is used to quantify over 37 000 recorded fibre angles from tissue samples. The study resulted in distinct fibre families, fibre directions, dispersion and thickness data for each layer and all vessels investigated. Two fibre families were present for the intima, media and adventitia in the aortas, with often a third and sometimes a fourth family in the intima in the respective axial and circumferential directions. In all aortas, the two families were almost symmetrically arranged with respect to the cylinder axis, closer to the axial direction in the adventitia, closer to the circumferential direction in the media and in between in the intima. The same trend was found for the intima and adventitia of the common iliac arteries; however, there was only one preferred fibre alignment present in the media. In all locations and layers, the observed fibre orientations were always in the tangential plane of the walls, with no radial components and very small dispersion through the wall thickness. A wider range of in-plane fibre orientations was present in the intima than in the media and adventitia. The mean total wall thickness for the aortas and the common iliac artery was 1.39 and 1.05 mm, respectively. For the aortas, a slight thickening of the intima and a thinning of the media in increasingly distal regions were observed. A clear intimal thickening was present distal to the branching of the celiac arteries. All data, except for the media of the common iliac arteries, showed two prominent collagen fibre families for all layers so that two-fibre family models seem most appropriate.

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Section: Wall Thickness Measurementssupporting

confidence: 88%

Section: Wall Thickness Measurementssupporting

confidence: 86%

Section: Wall Thickness Measurementssupporting

confidence: 86%

See 1 more Smart Citation

Determination of the layer-specific distributed collagen fibre orientations in human thoracic and abdominal aortas and common iliac arteries

Schriefl

Zeindlinger

Pierce

et al. 2011

J. R. Soc. Interface.

314

294

View full text Add to dashboard Cite

show abstract

“…Table 2.12 The influence of atherosclerosis on some mechanical properties of abdominal aorta wall. Adapted from Purinya and Kasyanov (1975). Figure 2.11 shows the dependence of stress intensity on the stretch ratio λ for the abdominal aorta wall and for the vessel wall, from which the affected layer was removed at the inside elastic membrane level.…”

Section: The Effect Of Sample Orientationmentioning

confidence: 99%

“…Purinya and Kasyanov (1975) performed a similar analysis by studying 19 samples of the abdominal aorta in biaxial experiments (at the speed of loading of 2N/min) for two age groups A -from 43 to 45 years old and B -from 51 to 61 years old. The results are shown inTable 2.12.…”

mentioning

confidence: 99%