Three-dimensional anatomical reconstruction of the abdominal aorta and peripheral vessels revealing extensive calcification and tortuosity of the iliofemoral vessels

ASVIDE ◽  
2018 ◽  
Vol 5 ◽  
pp. 804-804
Author(s):  
Samuel Heuts ◽  
Jules R. Olsthoorn ◽  
Jos G. Maessen ◽  
Peyman Sardari Nia
Keyword(s):  
Abdominal Aorta ◽  
Three Dimensional ◽  
Anatomical Reconstruction ◽  
Extensive Calcification ◽  
Iliofemoral Vessels

scholarly journals Arterial pulse wave propagation across stenoses and aneurysms: assessment of one-dimensional simulations against three-dimensional simulations and in vitro measurements

2021 ◽  
Vol 18 (177) ◽  
Author(s):  
Weiwei Jin ◽  
Jordi Alastruey
Keyword(s):  
Abdominal Aorta ◽  
Three Dimensional ◽  
Experimental Models ◽  
Arterial Blood Flow ◽  
Future Research ◽  
One Dimensional ◽  
Arterial Blood ◽  
Mean Square Errors ◽  
Pressure And Flow Waves

One-dimensional (1-D) arterial blood flow modelling was tested in a series of idealized vascular geometries representing the abdominal aorta, common carotid and iliac arteries with different sizes of stenoses and/or aneurysms. Three-dimensional (3-D) modelling and in vitro measurements were used as ground truth to assess the accuracy of 1-D model pressure and flow waves. The 1-D and 3-D formulations shared identical boundary conditions and had equivalent vascular geometries and material properties. The parameters of an experimental set-up of the abdominal aorta for different aneurysm sizes were matched in corresponding 1-D models. Results show the ability of 1-D modelling to capture the main features of pressure and flow waves, pressure drop across the stenoses and energy dissipation across aneurysms observed in the 3-D and experimental models. Under physiological Reynolds numbers ( Re ), root mean square errors were smaller than 5.4% for pressure and 7.3% for the flow, for stenosis and aneurysm sizes of up to 85% and 400%, respectively. Relative errors increased with the increasing stenosis and aneurysm size, aneurysm length and Re , and decreasing stenosis length. All data generated in this study are freely available and provide a valuable resource for future research.

Three-dimensional spiral computed tomographic angiography: An alternative imaging modality for the abdominal aorta and its branches

1993 ◽  
Vol 18 (4) ◽  
pp. 656-665 ◽  
Author(s):  
Joseph H. Rapp ◽  
Geoffrey D. Rubin ◽  
Philip J. Walker ◽  
Michael D. Dake ◽  
Sandy D. Napel ◽  
...  
Keyword(s):  
Abdominal Aorta ◽  
Imaging Modality ◽  
Three Dimensional ◽  
Computed Tomographic Angiography ◽  
Spiral Computed ◽  
Computed Tomographic ◽  
Tomographic Angiography

scholarly journals A Reliable Protocol to Study the Morphology of the Abdominal Aorta in a Three-Dimensional Modality

2019 ◽  
Vol 58 (6) ◽  
pp. e198-e199
Author(s):  
Matthew Joe Grima ◽  
Mourad Boufi ◽  
Paros Loftus ◽  
Alberto Vidal-Diez ◽  
Ian Loftus ◽  
...  
Keyword(s):  
Abdominal Aorta ◽  
Three Dimensional

scholarly journals Strain patterns in normal anterior talofibular and calcaneofibular ligaments and after anatomical reconstruction using gracilis tendon grafts: A cadaver study

2021 ◽  
Author(s):  
Masato Takao ◽  
Danielle Lowe ◽  
Satoru Ozeki ◽  
Xavier M Oliva ◽  
Ryota Inokuchi ◽  
...  
Keyword(s):  
Ankle Instability ◽  
Plantar Flexion ◽  
Three Dimensional ◽  
Anatomical Reconstruction ◽  
Axial Motion ◽  
Ankle Ligaments ◽  
Lateral Ankle ◽  
Strain Measurements ◽  
Relative Strain ◽  
Lateral Ankle Ligaments

Abstract BackgroundInversion sprains of the lateral ankle ligaments often result in symptomatic lateral ankle instability, and some patients need lateral reconstruction surgeries to reduce pain, improve function, and prevent subsequent injuries. Although anatomically reconstructed ligaments should behave in a biomechanically normal manner, previous studies have not measured the strain patterns of the anterior talofibular (ATFL) and calcaneofibular ligaments (CFL) after anatomical reconstruction. This study aimed to measure the strain patterns of normal and reconstructed ATFL and CFLs using a miniaturization ligament performance probe (MLPP) system.MethodsThe MLPP was sutured into the ligamentous bands of the ATFLs and CTLs of three fresh-frozen, lower extremity, cadaveric specimens. Each ankle was manually moved from 15° dorsiflexion to 30° plantar flexion, and a 1.2-N m force was applied to the ankle and subtalar joint complex.ResultsThe normal and reconstructed ATFLs exhibited maximal strain (100) during supination in three-dimensional motion. Although the normal ATFLs were not strained during pronation, the reconstructed ATFLs demonstrated relative strain values of 16–36. During axial motion, the normal ATFLs began to gradually tense at 0° plantarflexion, with the strain increasing, as the plantarflexion angle increased, to a maximal value (100) at 30° plantarflexion; the reconstructed ATFLs showed similar strain patterns. The normal CFLs exhibited maximum strain (100) during plantarflexion-abduction and relative strain measurements of 30–52 during dorsiflexion in three-dimensional motion. The reconstructed CFLs exhibited the most strain during dorsiflexion-adduction and demonstrated relative strain measurements of 29–62 during plantarflexion-abduction. During axial motion, the normal CFLs began to gradually tense at 20° plantarflexion and 5° dorsiflexion.ConclusionOur results showed that the strain patterns of reconstructed ATFLs and CFLs are not exactly the same as those in the normal ligaments.

Cyclic three-dimensional wall motion of the human ascending and abdominal aorta characterized by time-resolved three-dimensional ultrasound speckle tracking

2016 ◽  
Vol 15 (5) ◽  
pp. 1375-1388 ◽  
Author(s):  
Andreas Wittek ◽  
Konstantinos Karatolios ◽  
Claus-Peter Fritzen ◽  
Jürgen Bereiter-Hahn ◽  
Bernhard Schieffer ◽  
...  
Keyword(s):  
Abdominal Aorta ◽  
Speckle Tracking ◽  
Wall Motion ◽  
Three Dimensional ◽  
Time Resolved
Sign in / Sign up

Export Citation Format

Share Document