Journal: Data in Brief
Article Title: 4D CT angiography and computational biomechanics dataset for structural integrity assessment of abdominal aortic aneurysms
doi: 10.1016/j.dib.2026.112865
Figure Lengend Snippet: Overview of the dataset folder structure. The dataset is organised under a top-level directory (Dataset_root) containing 20 patient-specific folders (P01–P20). Each patient directory contains a 4D_CTA subfolder with cropped, time-resolved 3D computed tomography angiography (4D CTA) image volumes stored using the filename pattern cardiac_phase_*.nrrd. It also includes finite element model and mesh files of the abdominal aortic aneurysm (AAA) and intraluminal thrombus (ILT) (AAA.inp, Wall.inp, ILT.inp), corresponding surface models (WallSurface.vtp, ILTSurface.vtp), and derived biomechanical maps including strain (strain.vtp), tension (tension.vtp), structural integrity index (SII.vtp), and relative structural integrity index (RSII.vtp). The number and naming conventions of cardiac-phase image volumes vary across patients and are summarised below the directory tree.
Article Snippet: Type of data , Data for each of 20 patients: 4D CTA images: Nearly Raw Raster Data file (*.nrrd) Surface model of AAA wall: VTK PolyData file (*.vtp) Surface model of intraluminal thrombus (ILT): VTK PolyData file (*.vtp) Finite element model of AAA: Abaqus FE model file (*.inp) Finite element mesh of AAA wall: Abaqus FE mesh file (*.inp) Finite element mesh of intraluminal thrombus (ILT): Abaqus FE mesh file (*.inp) AAA wall strain map: VTK PolyData files (*.vtp) AAA wall tension map: VTK PolyData files (*.vtp) AAA wall structural integrity index (SII) map: VTK PolyData files (*.vtp) AAA wall relative structural integrity index (RSII) map: VTK PolyData files (*.vtp).
Techniques: Computed Tomography, Derivative Assay