A5020204556- Aortic Disease and Treatment Approaches
- Aortic aneurysm repair treatments
- Cardiac Valve Diseases and Treatments
- Elasticity and Material Modeling
- Cardiac, Anesthesia and Surgical Outcomes
- Infectious Aortic and Vascular Conditions
- Ultrasound in Clinical Applications
- Reconstructive Surgery and Microvascular Techniques
- Advanced Vision and Imaging
- Congenital Heart Disease Studies
- Renal and Vascular Pathologies
- Plasma and Flow Control in Aerodynamics
- Cardiac and Coronary Surgery Techniques
- Fluid Dynamics and Turbulent Flows
- Peripheral Artery Disease Management
- Computer Graphics and Visualization Techniques
- Intracranial Aneurysms: Treatment and Complications
- Vascular Procedures and Complications
- Medical Image Segmentation Techniques
- Venous Thromboembolism Diagnosis and Management
- Aerodynamics and Fluid Dynamics Research
Stanford University
2023-2024
Chalmers University of Technology
2019-2023
Thoracic endovascular aortic repair (TEVAR) can change the morphology of flow lumen in dissections, which may affect hemodynamics and function. This study characterizes how helical true type B dissections is altered by TEVAR.Patients with dissection who underwent computed tomography angiography before after TEVAR were retrospectively reviewed. Images used to construct three-dimensional stereolithographic surface models whole aorta using custom software. Stereolithographic segmented...
The thoracic aorta is a highly mobile organ whose dynamics are altered by endovascular repair (TEVAR). aim of this study was to quantify cardiac pulsatility-induced multi-axial deformation the before and after descending aortic TEVAR.Eleven TEVAR patients (8 males 3 females, age 57-89) underwent retrospective cardiac-gated CT angiography TEVAR. 3D geometric models were constructed, lumen centerlines, inner outer surface curves, cross-sections extracted measure arclength, centerline, surface,...
We aim to quantify multiaxial cardiac pulsatility-induced deformation of the thoracic aorta after ascending endovascular aortic repair (TEVAR) as a part GORE ARISE Early Feasibility Study.Fifteen patients (7 females and 8 males, age 73±9 years) with TEVAR underwent computed tomography angiography retrospective gating. Geometric modeling was performed; geometric features including axial length, effective diameter, centerline, inner surface, outer surface curvatures were quantified for systole...
Abstract Precise description of vascular morphometry is crucial to support medical device manufacturers and clinicians for improving development interventional outcomes. A compact intuitive method presented automatically characterize the surface geometry tubular anatomic structures quantify curvatures starting from generic stereolithographic (STL) surfaces. The was validated with software phantoms used longitudinal 37 human thoracic aortas aneurysm or dissection. quantification showed good...
Chirality is a fundamental property in many biological systems. Motivated by previous observations of helical aortic blood flow, tissue fibers, and propagation dissections, we introduce methods to characterize morphology dissections. After validation on computer-generated phantoms, the were applied patients with type B dissection. For this cohort, there was distinct bimodal distribution dissection either achiral or exclusively right-handed chirality, no intermediate cases left-handed cases....
We aim to examine the impact of thoracic endovascular aortic repair (TEVAR) with provisional extension induce complete attachment (PETTICOAT) technique on remodeling as it relates geometric changes aorta. Clinical and radiographic data for 10 patients (all male; mean age, 68.3 years) type B dissection (TBAD) treated TEVAR + PETTICOAT at a single institution were examined. Indications intervention included malperfusion (n = 5), false lumen aneurysmal degeneration 3), or refractory pain 2)....
We sought to investigate the impact of stenting on native patent ductus arteriosus (PDA) length, curvature, and pulsatile deformations in patients with ductal-dependent pulmonary circulations.
Type B aortic dissections propagate with either achiral (nonspiraling) or right-handed chiral (spiraling) morphology, have mobile dissection flaps, and are often treated thoracic endovascular repair (TEVAR). We aim to quantify cardiac-induced helical deformation of the true lumen type before after TEVAR.Retrospective cardiac-gated computed tomography (CT) images TEVAR were used construct systolic diastolic 3-dimensional (3D) surface models, including lumen, whole (true+false lumens), branch...