Publications by authors named "M Ballweber"
Ascending thoracic aortic aneurysms (aTAAs) can lead to life-threatening dissection and rupture. Recent studies have highlighted aTAA mechanical properties as relevant factors associated with progression. The aim of this study was to quantify in vivo aortic wall stretch in healthy participants and aTAA patients using displacement encoding with stimulated echoes (DENSE) magnetic resonance imaging.
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- A study investigated how measuring strain in the wall of asymptomatic abdominal aortic aneurysms (AAA) could better predict progression and rupture risk compared to just looking at the aneurysm size and growth rate.
- The researchers tested the accuracy of this measurement method, MR strain, using synthetic MRI data to ensure its reliability before applying it to real patients.
- Results showed that MR strain is highly reproducible and associated with AAA growth rate, suggesting it could be a valuable tool in assessing aneurysm risk.
Background And Purpose: The reliability of contrast-enhanced MRA in monitoring serial volumetric changes of unruptured intracranial aneurysms has not been established. We aimed to determine the coefficient of variance of contrast-enhanced MRA in measuring aneurysm volumes, thus establishing criteria for aneurysm growth and permitting identification of variables predictive of growth.
Materials And Methods: Aneurysm volumes were measured from serial contrast-enhanced MRA studies of patients with untreated intracranial aneurysms who underwent >2 sequential MR imaging evaluations.
Objectives: To determine the intra-individual flow variation in serially acquired studies, and the influence of this variation on subsequent hemodynamic simulations using the inlet flow as a boundary condition. Author: Kindly check and confirm whether the corresponding authors are correctly identified.Confirmed.
View Article and Find Full Text PDFObjectives: This study aims to evaluate the reproducibility of measures of plaque morphology in serially acquired black-blood MRI of untreated atherosclerotic femoral arteries.
Materials And Methods: MR studies was obtained from 42 timepoints, on 12 patients with known femoral artery atherosclerosis. Images with a 3D isotropic FLASH with DANTE-prepared black blood contrast (DASH) at a 3-T scanner were acquired at baseline, within 1 week, and at 1 month.