A5011853086- Radiation Dose and Imaging
- Advanced X-ray and CT Imaging
- Cardiac Imaging and Diagnostics
- Medical Imaging Techniques and Applications
- Systemic Sclerosis and Related Diseases
- Venous Thromboembolism Diagnosis and Management
- Aortic aneurysm repair treatments
- Radiology practices and education
- Musculoskeletal pain and rehabilitation
- Cerebral Venous Sinus Thrombosis
- Intraoperative Neuromonitoring and Anesthetic Effects
- Kidney Stones and Urolithiasis Treatments
- Emergency and Acute Care Studies
- Advanced MRI Techniques and Applications
- Neurosurgical Procedures and Complications
- Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
- Spine and Intervertebral Disc Pathology
- Medical Imaging and Analysis
- Aortic Disease and Treatment Approaches
- Meningioma and schwannoma management
- Renal and Vascular Pathologies
- Infective Endocarditis Diagnosis and Management
- Traumatic Brain Injury and Neurovascular Disturbances
- Head and Neck Surgical Oncology
- Ultrasound in Clinical Applications
University Hospital of Bern
2021
University Hospital of Zurich
2011-2015
University of Zurich
2011-2015
To introduce a novel algorithm of automated attenuation-based tube potential selection and to assess its impact on image quality radiation dose body computed tomography angiography (CTA).In all, 40 patients (mean age 71±11.8 years, mass index (BMI) 25.7±3.8 kg/m², range 18.8-33.8 kg/m²) underwent 64-slice thoracoabdominal CTA (contrast material: 80 mL, 5 mL/s) using an (CAREkV), which optimizes tube-potential (70-140 kV) tube-current (138.8±18.6 effective mAs, 106-177 mAs) based the...
<h3>Objectives</h3> Early diagnosis of interstitial lung disease (ILD), currently the main cause death in systemic sclerosis (SSc), is needed. The gold standard high-resolution CT (HRCT) chest, but regular screening faces risk increased radiation exposure. We performed a prospective validation dedicated, 9-slice HRCT protocol with reduced dose for detection ILD patients SSc. <h3>Methods</h3> analysed 170/205 consecutive Whole-chest HRCT, serving as reference, and nine slices allocated...
<h3>BACKGROUND AND PURPOSE:</h3> CT protocols should aim for radiation doses being as low reasonably achievable. The purpose of our study was to assess the image quality and dose neck at a tube potential 70 kVp. <h3>MATERIALS METHODS:</h3> Twenty patients (7 female, mean age 51.4 years, range 19–81 years) underwent contrast-enhanced 64-section kVp (ATCM, effective current-time product 614 eff.mAs, 467–713 eff.mAs). All 20 had previous 120 on same scanner. Two radiologists assessed artifacts...
<h3>BACKGROUND AND PURPOSE:</h3> Spine MR imaging plays a pivotal role in the diagnostic work-up of spontaneous intracranial hypotension. The aim this study was to compare accuracy unenhanced spine and intrathecal gadolinium-enhanced for identification localization CSF leaks patients with <h3>MATERIALS METHODS:</h3> A retrospective hypotension examined from February 2013 October 2017 conducted. Their reviewed by 3 blinded readers presence epidural using different sequences (T2WI, 3D T2WI...
The objective of our study was to assess prospectively the impact automated attenuation-based kilovoltage selection on image quality and radiation dose in patients undergoing body CT angiography (CTA) after endovascular aneurysm repair (EVAR) abdominal aorta.Thirty-five (five women, 30 men; mean age ± SD, 69 13 years; mass index 27.3 4.5 kg/m(2)) underwent 64-MDCT thoracoabdominal aorta using a fixed 120-kVp protocol (scan A: 120 mAs [reference]; rotation time, 0.33 second; pitch, 1.2) and,...
The objective of this study is to assess diagnostic accuracy for the detection interstitial lung disease (ILD) in image series with high increment and reduced number slices patients systemic sclerosis (SSc).45 SSc underwent high-resolution CT (HRCT). Three secondary captures were reconstructed as follows: 1, 10 mm 1 slices; 2, seven axial images baso-apical gradient; 3, three obtained at apical, level carina basal. presence extent ILD, degree confidence recorded. effective dose each was...
The aim of this study was to identify specific MRI characteristics anterior ischaemic optic neuropathy (AION) and neuritis (ON) that would aid in the differentiation between these two diagnoses.We retrospectively analysed a consecutive case series including all patients with an brain orbit clinical diagnosis either ON or AION. We examined scans for restricted diffusion nerve, sheath diameter, enhancement location nerve distribution white matter lesions.Fifty met inclusion criteria. found...
Aortic valve calcification and changes after transcatheter aortic implantation (TAVI) were specifically assessed by computed tomography (CT). The main difference between TAVI the conventional technique is compression of cusps calcified native against wall before implantation. objective this study was to quantify segmented in area basal annular plane TAVI.The CT scans 20 patients (13 male 7 female; mean age: 82.9 ± 8.1 years) assessed. segmented; derived from segmentation volume, mass...