A5038450402- Kidney Stones and Urolithiasis Treatments
- Pediatric Urology and Nephrology Studies
- Advanced X-ray and CT Imaging
- Radiation Dose and Imaging
- Cardiac Valve Diseases and Treatments
- Cardiac and Coronary Surgery Techniques
- Cardiovascular Function and Risk Factors
- COVID-19 diagnosis using AI
- Ureteral procedures and complications
- Pulmonary Hypertension Research and Treatments
- Medical Imaging Techniques and Applications
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Ultrasound in Clinical Applications
- Traumatic Ocular and Foreign Body Injuries
- COVID-19 Clinical Research Studies
- Lung Cancer Diagnosis and Treatment
- Cardiac Structural Anomalies and Repair
- MRI in cancer diagnosis
- Medical Imaging and Analysis
- Venous Thromboembolism Diagnosis and Management
- Paleopathology and ancient diseases
- Radiomics and Machine Learning in Medical Imaging
- Sepsis Diagnosis and Treatment
- Coronary Interventions and Diagnostics
- Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
Örebro University
2016-2025
Örebro University Hospital
2012-2020
Linköping University
2014
Center for Rheumatology
2008
To determine how to most accurately predict the chance of spontaneous passage a ureteral stone using information in diagnostic non-enhanced computed tomography (NECT) and create predictive models with smaller size intervals than previously possible.Retrospectively 392 consecutive patients ureteric on NECT were included. Three radiologists independently measured size. Stone location, side, hydronephrosis, CRP, medical expulsion therapy (MET) all follow-up radiology until or 26 weeks recorded....
Abstract Background and Aims No-touch saphenous vein harvesting may enhance graft patency improve clinical outcomes after coronary artery bypass grafting (CABG). Methods In this registry-based, randomized trial, patients undergoing CABG were randomly assigned to no-touch or conventional harvesting. The primary composite outcome was the proportion of with occluded/stenosed >50% on computed tomography angiography, who underwent percutaneous intervention a graft, died. Secondary included...
Computed tomography (CT) is the method of choice for diagnosing ureteral stones - kidney that obstruct ureter. The purpose this study to develop a computer aided detection (CAD) algorithm identifying stone in thin slice CT volumes. challenge CAD urinary lies similarity shape and intensity with non-stone structures how efficiently deal large high-resolution We address these challenges by using Convolutional Neural Network (CNN) works directly on high resolution evaluated data base 465...
Abstract The objectives were to develop and validate a Convolutional Neural Network (CNN) using local features for differentiating distal ureteral stones from pelvic phleboliths, compare the CNN method with semi-quantitative radiologists’ assessments evaluate whether assessment of calcification its surroundings is sufficient discriminating phleboliths in non-contrast-enhanced CT (NECT). We retrospectively included 341 consecutive patients acute renal colic stone on NECT showing either stone,...
To quantify the interobserver variability among most frequently encountered parenchymal patterns in High Resolution CT (HRCT) and to compare application of 2011 2018 usual interstitial pneumonia (UIP) criteria according joint guidelines from international thoracic respiratory societies.Two observers independently evaluated 126 HRCT, with examples common patterns, noted presence each pattern. The readers also whether findings met for UIP. In a second reading, same HRCT UIP update.The kappa...
To evaluate metal artefact reduction (MAR) techniques from four CT vendors in hip prosthesis imaging.Bilateral phantom images, obtained by using MAR algorithms for single-energy data or dual-energy (DECT) and monoenergetic reconstructions of DECT data, were visually graded five radiologists 10 image quality criteria. Comparisons between the images a reference performed each scanner separately. Ordinal probit regression analysis was used.The general improved based on majority criteria (up to...
Background Lumbar spine radiography is often performed instead of CT for radiation dose concerns. Purpose To compare image quality and diagnostic information from low lumbar at an effective about 1 mSv with radiography. Material Methods Fifty-one patients were examined by both methods. Five reviewers scored all examinations on eight criteria using a five-graded scale also assessed three common pathologic changes. Results Low better than the following: sharp reproduction disc profile...
To perform CT pulmonary angiography (CTPA) using a minimal amount of iodinated contrast media.
Background Chest CT is prognostic in Covid-19 but there a lack of consensus on how to report the findings. A chest scoring system, ÖCoS, was implemented clinical routine 1 April 2020, Örebro Region, Sweden. The ÖCoS-severity score measures extent lung involvement. objective study evaluate ÖCoS scores as predictors course Covid-19.
Dual-energy computed tomography (DECT) has been shown to be useful for subtracting bone or calcium in CT angiography and gives an opportunity produce a virtual non-contrast-enhanced (VNC) image from series where contrast agents have given intravenously. High noise levels low resolution previously limited the diagnostic value of VNC images created with first generation DECT. With recent introduction second DECT, there is possibility obtaining better quality at hopefully lower radiation dose...
To compare the ability of different size estimates to predict spontaneous passage ureteral stones using a 3D-segmentation and investigate impact manual measurement variability on prediction stone passage.We retrospectively included 391 consecutive patients with non-contrast-enhanced CT (NECT). Three-dimensional segmentation were compared mean three radiologists' measurements. Receiver-operating characteristic (ROC) analysis was performed for each estimate. The difference in predicted...
Abstract Objectives To prospectively validate three quantitative single-energy CT (SE-CT) methods for classifying uric acid (UA) and non-uric (non-UA) stones. Methods Between September 2018 2019, 116 study participants were included in the if they had at least one 3–20-mm urinary stone on an initial tract SE-CT scan. An additional dual-energy (DE-CT) scan was performed, limited to of interest. Additionally, include a sufficient number UA stones, eight with confirmed DE-CT retrospectively...
Summary Introduction Patients with primary Sjögren's syndrome (pSS) are reported to have a variety of gastrointestinal symptoms partly attributed an overrepresentation celiac disease. We observed that irritable bowel (IBS)‐like frequent complaints in this patient group. Allergic manifestations various drugs also common pSS. A role food allergy IBS has been proposed. Objective This study is aimed at evaluating the mucosal response rectal challenge cow's milk protein (CM) patients pSS and...
Stone size and location are key factors in predicting spontaneous stone passage (SSP), but little attention has been paid to the influence of radiological signs impaction (RSSI). This research aims determine whether RSSI, alongside size, can predict SSP evaluate consistency ureteral wall thickness (UWT) measurements among observers. In this retrospective study, 160 patients with a single upper or middle on acute non-enhanced computed tomography (NCCT) were analysed. Patient data collected...
There is today no established approach to estimate right ventricular ejection fraction (RVEF) using 2D transthoracic echocardiography (TTE). The aim of this study was evaluate a new method for RVEF calculations TTE and compare the results with cardiac magnetic resonance (CMR) imaging tricuspid annular plane systolic excursion (TAPSE).A total 37 subjects, 25 retrospectively included patients twelve healthy volunteers, were give wide range RVEF. ventricle (RV) modeled as part an ellipsoid...
The standard imaging procedure for a patient presenting with renal colic is unenhanced computed tomography (CT). CT measured size has close correlation to the estimated prognosis spontaneous passage of ureteral calculus. Size estimations urinary calculi in images are still based on two-dimensional (2D) reformats.To develop and validate calculus oriented three-dimensional (3D) method measuring length width compare measurements corresponding 2D obtained axial coronal reformats.Fifty...
Background Iterative reconstruction (IR) is a recent algorithm for computed tomography (CT) that can be used instead of the standard algorithm, filtered back projection (FBP), to reduce radiation dose and/or improve image quality. Purpose To evaluate and compare quality low-dose CT lumbar spine reconstructed with IR conventional FBP, without further reduction dose. Material Methods Low-dose on 55 patients was performed Siemens scanner using 120 kV tube voltage, 30 reference mAs, automatic...
Background Magnetic resonance imaging (MRI) is useful in the diagnosis of clinically significant prostate cancer (csPCa). MRI-derived radiomics may support csPCa. Purpose To investigate whether adding from biparametric MRI to predictive models based on clinical and parameters improves prediction csPCa a multisite-multivendor setting. Material Methods Clinical information (PSA, PSA density, volume, age), reviews (PI-RADS 2.1), (histogram texture features) were retrieved prospectively included...
Urinary stones composed of uric acid can be treated medically. Prediction stone type is, therefore, desirable when a urinary is diagnosed with unenhanced CT. The purpose the present study was to describe single-energy thin slice quantitative CT parameters correlated chemical and develop method distinguish pure (UA) from other (non-UA/Mix). Unenhanced images 126 (117 patients) known were retrospectively included in study. Among stones, 22 UA 104 non-UA/Mix. Laplacian filtered quantitatively...
Uncontrolled release of damage-associated molecular patterns (DAMPs) is suggested to be a major trigger for the dysregulated host immune response that leads severe COVID-19. Cold-inducible RNA-binding protein (CIRP), newly identified DAMP aggravates inflammation and tissue injury, induces respiratory failure in sepsis. Whether CIRP contributes pathogenesis COVID-19 has not yet been explored. Aim To investigate if concentration extracellular (eCIRP) serum associates with lung involvement by...