A5042182057- Cardiac Imaging and Diagnostics
- Cardiovascular Function and Risk Factors
- Advanced MRI Techniques and Applications
- Cardiovascular Effects of Exercise
- Cardiomyopathy and Myosin Studies
- Advanced X-ray and CT Imaging
- Cardiovascular Disease and Adiposity
- Acute Myocardial Infarction Research
- COVID-19 and healthcare impacts
- Trauma Management and Diagnosis
- Cardiac electrophysiology and arrhythmias
- Radiation Dose and Imaging
- Electron Spin Resonance Studies
- COVID-19 Clinical Research Studies
- Cardiac pacing and defibrillation studies
- Blood Pressure and Hypertension Studies
- COVID-19 diagnosis using AI
- Aortic Disease and Treatment Approaches
- Cardiac tumors and thrombi
- Radiology practices and education
- Management of metastatic bone disease
- Rheumatoid Arthritis Research and Therapies
- Healthcare cost, quality, practices
- Cardiac Structural Anomalies and Repair
- Digital Radiography and Breast Imaging
Kantonsspital Graubünden
2014-2025
University of Basel
2013-2022
University Hospital of Bern
2020-2021
University of Bern
2020-2021
New York University
2019
University Hospital of Basel
2013-2018
National Institutes of Health
2016-2017
University of Washington
2017
National Institutes of Health Clinical Center
2013-2016
Johns Hopkins University
2016
Background Few data exist on the long-term risk prediction of elevated left ventricular (LV) mass quantified by MRI for cardiovascular (CV) events in a contemporary, ethnically diverse cohort. Purpose To assess impact LV CV prospective cohort study multiethnic population relationship to factors and coronary artery calcium (CAC) score. Materials Methods The Multi-Ethnic Study Atherosclerosis, or MESA (ClinicalTrials.gov: NCT00005487), is an ongoing multicenter population-based United States....
Cardiovascular magnetic resonance (CMR) T1 mapping indices, such as time and partition coefficient (λ), have shown potential to assess diffuse myocardial fibrosis. The purpose of this study was investigate how scanner field strength variation affect the accuracy precision/reproducibility indices. CMR studies were performed on two 1.5T three 3T scanners. Eight phantoms made mimic T1/T2 pre- post-contrast myocardium blood at 3T. using MOLLI with simulated heart rate 40-100 bpm. Inversion...
Purpose To quantitatively determine the population variation and relationship of left ventricular (LV) trabeculation to LV function, structure, clinical variables. Materials Methods This HIPAA-compliant multicenter study was approved by institutional review boards participating centers. All participants provided written informed consent. Participants from Multi-Ethnic Study Atherosclerosis with cardiac magnetic resonance (MR) data were evaluated quantify as a fractal dimension (FD). Entire...
To develop a novel sequence for simultaneous quantification of T1 and T2 relaxation times in the myocardium based on transient phase balanced steady-state free precession.A new prototype sequence, named "cardiac balanced-SSFP inversion recovery with interleaved sampling acquisition" (CABIRIA) was developed single-shot bSSFP readout following an pulse. With this method, values can be calculated from analysis signal evolution. The scan duration single slice vivo 8 heartbeats, thus feasible...
Background Hypertrophic cardiomyopathy is defined as unexplained left ventricular ( LV ) hypertrophy (wall thickness ≥15 mm) and prevalent in 0.2% of adults (1:500) population-based studies using echocardiography. Cardiac magnetic resonance imaging MRI allows for more accurate wall measurement across the entire ventricle than The prevalence by cardiac unknown. MESA (Multi-Ethnic Study Atherosclerosis) recruited individuals without overt cardiovascular disease 45 to 84 years age. Methods...
Purpose To determine if excess greater left ventricle (LV) trabeculation is associated with decreased average regional myocardial function, diffuse fibrosis, or both. Materials and Methods This was a HIPAA-compliant institutional board approved multicenter study, all participants provided written informed consent. Participants in the Multi-Ethnic Study of Atherosclerosis (MESA) underwent comprehensive cardiac magnetic resonance (MR) examination. LV measured maximal apical fractal dimension...
Background: The global coronavirus disease 2019 (COVID-19) pandemic has posed substantial challenges for healthcare systems, notably the increased demand chest computed tomography (CT) scans, which lack automated analysis. Our study addresses this by utilizing artificial intelligence-supported computer analysis to investigate lung involvement distribution and extent in COVID-19 patients. Additionally, we explore association between intensive care unit (ICU) admission, while also comparing...
Background Understanding the relationship of cardiovascular structure and function to age is confounded by high prevalence traditional risk factors in United States. The purpose study compare left ventricular (LV) aortic structural, functional parameters individuals with without a population-based cohort. Methods results 3015 participants (48% men, 55–94, mean 69.01±9.17 years) Multi-Ethnic Study Atherosclerosis (MESA) underwent magnetic resonance (CMR) imaging from 2010–2012. Absence (CV)...
This is the experience with Stratos system in two surgical centres for management of types rib fractures: flail chest and multiple dislocated fractures significant wall deformity.From January 2009 to May 2012, 94 consecutive patients were included. Selected indications extended anterolateral (n = 68) painful 26). The open reduction internal fixation (ORIF) consists flexible titanium clamps connecting plates. postoperative course was assessed. Clinical functional outcomes evaluated at 6...
Objective. The prevalence of heart failure is increased 2-fold in patients with rheumatoid arthritis (RA); this not explained by ischemic disease or other risk factors for failure. We hypothesized that RA without known disease, cardiac magnetic resonance imaging (cMRI) would detect altered structure, function, and fibrosis. Methods. performed 1.5-T cMRI 59 56 controls frequency-matched age, race, sex, compared indices fibrosis [late gadolinium enhancement (LGE), native T1 mapping,...
Background Time to intrinsicoid deflection ( ID ), the time from onset of QRS complex peak R wave on electrocardiogram, represents delayed ventricular activation and suggests that impaired myocardial function is present. It unknown whether predictive future heart failure HF ) events. Hypothesis Delayed Methods A total 6394 participants (mean age, 62 ± 10 years; 54% women; 38% whites, 28% blacks, 22% Hispanics, 12% Chinese Americans) without clinically apparent cardiovascular disease or major...
Background Left ventricular (LV) trabeculation is highly variable between individuals, and prominent trabeculation, or non-compaction, has been considered to be evidence of abnormal cardiac development. The significance increased in asymptomatic healthy individuals with preserved LV systolic function unknown. aim this study was determine if excessive middle aged older subjects without dysfunction advanced disease associated changes volumes over the ensuing 10 years.
To assess the impact of changing from general to subspecialized reporting on turnaround time radiology reports (TAT), fraction available within 24 hours (R< h) and productivity.Reporting workflow in our department was changed (radiologists report imaging studies all areas [neuroradiological, abdominal, musculoskeletal et cetera]) solely their subspecialty field [e. g. musculoskeletal]). TAT, R< h productivity were calculated for a 12-month period (January-December 2012) compared (April...
Background NT-proBNP (N-terminal pro-B-type natriuretic peptide) is widely used to diagnose and manage patients with heart failure. We aimed investigate associations between levels development of global regional myocardial impairment, dyssynchrony, risk developing scar over time. Methods Results included 2416 adults (45-84 years) without baseline clinical cardiovascular disease from MESA (Multi-Ethnic Study Atherosclerosis). was assessed at (2000-2002). Cardiac magnetic resonance-measured...