137 results match your criteria: "Department for Clinical Science[Affiliation]"

Ultrasound radiomics predict the success of US-guided percutaneous irrigation for shoulder calcific tendinopathy.

Jpn J Radiol

January 2025

Artificial Intelligence and Translational Imaging (ATI) Lab, Department of Radiology, School of Medicine, University of Crete, Voutes Campus, Heraklion, Greece.

Objective: Calcific tendinopathy, predominantly affecting rotator cuff tendons, leads to significant pain and tendon degeneration. Although US-guided percutaneous irrigation (US-PICT) is an effective treatment for this condition, prediction of patient' s response and long-term outcomes remains a challenge. This study introduces a novel radiomics-based model to forecast patient outcomes, addressing a gap in the current predictive methodologies.

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Large Language Model Ability to Translate CT and MRI Free-Text Radiology Reports Into Multiple Languages.

Radiology

December 2024

From the Departments of Neuroradiology (A.M., M.P.W.) and Radiology (S.L.), Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany; Department of Neuroradiology, Hôpital Maison-Blanche, CHU Reims, Université Reims-Champagne-Ardenne, 45 Rue Cognacq-Jay, 51092 Reims, France (A.M.); Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Berlin, Germany (A.M.); School of Medicine and Health, Department of Diagnostic and Interventional Radiology, Klinikum rechts der Isar, TUM University Hospital, Technical University of Munich, Munich, Germany (F.B., L.A., M.R.M., K.B.); Department of Advanced Biomedical Sciences, University of Naples Federico II, Naples, Italy (L.U.); Department of Radiology, Karolinska University Hospital, Stockholm, Sweden (E.K.); Department for Clinical Science, Intervention and Technology (CLINTEC), Division of Radiology, Karolinska Institute, Stockholm, Sweden (A.T.); Department of Radiology, National Institute Mongi Ben Hamida of Neurology, Tunis, Tunisia (S.J., I.D.); Department of Radiology, School of Medicine, University of Crete, Heraklion, Greece (M.E.K., M.T.); Computational Biomedicine Laboratory, Institute of Computer Science, Foundation for Research and Technology (FORTH), Heraklion, Greece (M.E.K.); Department of Radiology, University of Health Sciences, Basaksehir Cam and Sakura City Hospital, Basaksehir, Istanbul, Turkey (B.K.); Department of Radiology, Koc University Hospital, Istanbul, Turkey (S.Y.); Department of Radiology, Jinling Hospital, Affiliated Hospital of Medical School of Nanjing University, Nanjing, China (L.Z., B.H.); Laboratory for Digital Public Health Technologies, ITMO University, St Petersburg, Russian Federation (A.A., E.A.Y., T.L.); Department of Radiology, Chiang Mai University, Chiang Mai, Thailand (W.M., S.A.); Department of Medicine, Surgery, and Dentistry, University of Salerno, Baronissi, Italy (R.C.); and School of Medicine and Health, Institute for Cardiovascular Radiology and Nuclear Medicine, German Heart Center Munich, TUM University Hospital, Technical University of Munich, Munich, Germany (K.B.).

Background High-quality translations of radiology reports are essential for optimal patient care. Because of limited availability of human translators with medical expertise, large language models (LLMs) are a promising solution, but their ability to translate radiology reports remains largely unexplored. Purpose To evaluate the accuracy and quality of various LLMs in translating radiology reports across high-resource languages (English, Italian, French, German, and Chinese) and low-resource languages (Swedish, Turkish, Russian, Greek, and Thai).

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Background: Failure to rescue (FTR) is defined as the inability to prevent death after the development of a complication. FTR is a parameter in evaluating multidisciplinary postoperative complication management. The aim of this study was to evaluate FTR rates after major liver resection for perihilar cholangiocarcinoma (pCCA) and analyze factors associated with FTR.

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Article Synopsis
  • The study investigates how the length of time taken during liver surgeries affects the likelihood of postoperative complications in patients undergoing different types of liver resections.
  • A total of 5,424 patients were analyzed from multiple centers between 2000 and 2022, focusing on procedures like right hemihepatectomy, technically major resection, and left lateral sectionectomy.
  • Results show that patients in the longest operative time group had a significantly higher risk of complications, particularly in various surgical approaches like open, laparoscopic, and robotic surgeries.
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Follicular lymphoma (FL) is the most common indolent type of B-cell non-Hodgkin lymphoma. Advances in treatment have improved overall survival, but early relapse or transformation to aggressive disease is associated with inferior outcome. To identify early genetic events and track tumor clonal evolution, we performed multi-omics analysis of 94 longitudinal biopsies from 44 FL patients; 22 with transformation (tFL) and 22 with relapse without transformation (nFL).

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β-amyloid (Aβ) pathology is not always coupled with Alzheimer's disease (AD) relevant cognitive decline. We assessed the accuracy of tau PET to identify Aβ(+) individuals who show prospective disease progression. 396 cognitively unimpaired and impaired individuals with baseline Aβ and tau PET and a follow-up of ≥ 2 years were selected from the Alzheimer's Disease Neuroimaging Initiative dataset.

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Prediction of Anastomotic Leakage in Esophageal Cancer Surgery: A Multimodal Machine Learning Model Integrating Imaging and Clinical Data.

Acad Radiol

December 2024

Department for Clinical Science, Intervention and Technology (CLINTEC), Division of Radiology, Karolinska Institutet, Stockholm, Sweden; Medical Radiation Physics and Nuclear Medicine, Section for Nuclear Medicine, Karolinska University Hospital, Huddinge, Stockholm, Sweden. Electronic address:

Article Synopsis
  • The study focuses on developing a machine-learning model to predict anastomotic leakage (AL) after esophagectomy for esophageal cancer, as this complication poses significant risks post-surgery.
  • 471 patients' preoperative CT and clinical data were analyzed to create and test the model using an XGBoost algorithm, with performance metrics measured using ROC curves.
  • The model showed a noteworthy accuracy, achieving a 79.2% area under the curve, which can aid in identifying patients at risk of AL, particularly where clinical indicators suggest low probability.*
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Patients with HER2-low metastatic breast cancer (mBC), defined as an immunohistochemistry (IHC) score of 1+ or 2+ without HER2 gene amplification, may benefit from HER2 antibody-drug conjugates. Identifying suitable candidates is a clinical challenge because of spatial and temporal heterogeneity in HER2 expression and discrepancies in pathologic reporting. We aimed to investigate the feasibility and safety of HER2-specific PET imaging with [Ga]Ga-ABY-025 for visualization of HER2-low mBC.

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Radiomics feature reproducibility: The elephant in the room.

Eur J Radiol

June 2024

Department of Medical Imaging, University Hospital of Heraklion, Heraklion, Crete, Greece; Department of Radiology, School of Medicine, University of Crete, Heraklion, Crete, Greece; Computational Biomedicine Laboratory, Institute of Computer Science, Foundation for Research and Technology (FORTH), Heraklion, Crete, Greece; Division of Radiology, Department for Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden. Electronic address:

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Article Synopsis
  • A study was conducted to compare the perioperative outcomes of robotic liver surgery (RLS) and laparoscopic liver surgery (LLS) across various healthcare settings from 2009 to 2021.
  • The results showed that RLS had better outcomes in terms of "textbook outcomes," lower blood loss, fewer complications, and shorter operative times compared to LLS after matching patient groups for bias.
  • Despite the higher costs generally associated with robotic surgery, this study suggests that RLS may offer specific clinical advantages over LLS in minimally invasive liver procedures.
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Objectives: To increase understanding of optimal imaging parameters [ 18 F]PSMA-1007 when imaging patients with prostate cancer and to determine interrater agreement using [ 18 F]PSMA-1007.

Methods: In this observational study, four independent physicians read reconstruction sets using bedtimes of 1, 2 and 3 minutes of patients undergoing [ 18 F]PSMA-1007. positron emission topography.

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Objectives: To use convolutional neural networks (CNNs) for the differentiation between benign and malignant renal tumors using contrast-enhanced CT images of a multi-institutional, multi-vendor, and multicenter CT dataset.

Methods: A total of 264 histologically confirmed renal tumors were included, from US and Swedish centers. Images were augmented and divided randomly 70%:30% for algorithm training and testing.

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CRP as an early indicator for anastomotic leakage after esophagectomy for cancer: a single tertiary gastro-esophageal center study.

Langenbecks Arch Surg

November 2023

Department of Clinical Science, Intervention and Technology (CLINTEC), Division of Surgery and Oncology, Karolinska Institutet, Hälsovägen 13, 141 57, Huddinge, Stockholm, Sweden.

Purpose: To determine the relationship between postoperative C-reactive protein (CRP) as an early indicator of anastomotic leakage (AL) after esophagectomy for esophageal cancer.

Methods: We reviewed patients diagnosed with esophageal or esophagogastric junctional cancer who underwent esophagectomy between 2006 and 2022 at the Karolinska University Hospital, Stockholm, Sweden. Multivariable logistic regression models estimated relative risk for AL by calculating the odds ratio (OR) with a 95% confidence interval (CI).

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Patients with localised, high-risk gastrointestinal stromal tumours (GIST) benefit from adjuvant imatinib treatment. Still, approximately 40% of patients relapse within 3 years after adjuvant therapy and the clinical and histopathological features currently used for risk classification cannot precisely predict poor outcomes after standard treatment. This study aimed to identify genomic and transcriptomic profiles that could be associated with disease relapse and thus a more aggressive phenotype.

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A pilot radiometabolomics integration study for the characterization of renal oncocytic neoplasia.

Sci Rep

August 2023

Division of Radiology, Department for Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden.

Differentiating benign renal oncocytic tumors and malignant renal cell carcinoma (RCC) on imaging and histopathology is a critical problem that presents an everyday clinical challenge. This manuscript aims to demonstrate a novel methodology integrating metabolomics with radiomics features (RF) to differentiate between benign oncocytic neoplasia and malignant renal tumors. For this purpose, thirty-three renal tumors (14 renal oncocytic tumors and 19 RCC) were prospectively collected and histopathologically characterised.

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Article Synopsis
  • The study aims to enhance the diagnosis of oncocytic renal tumors using a combined approach of radiomics analysis and Tc Sestamibi SPECT/CT imaging to distinguish benign tumors from more aggressive renal cell carcinoma.
  • A total of 57 renal tumors were analyzed, and the combined SPECT/radiomics model showed superior diagnostic accuracy (95%) compared to both the radiomics-only (71.67%) and visual evaluation of SPECT/CT alone (90.8%).
  • The results suggest that incorporating radiomics with SPECT/CT imaging can significantly improve preoperative assessment, with the Tc Sestamibi uptake being the most critical factor in achieving better diagnostic performance and reducing false positives and negatives.
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Multiple myeloma (MM) is one of the most common hematological malignancies affecting the bone marrow. Radiomics analysis has been employed in the literature in an attempt to evaluate the bone marrow of MM patients. This manuscript aimed to systematically review radiomics research on MM while employing a radiomics quality score (RQS) to accurately assess research quality in the field.

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Background: Premature ventricular contractions (PVCs) are a common form of arrhythmia associated with an unfavorable prognosis in patients with structural heart disease. It is unclear whether PVCs site of origin and QRS-width has a prognostic significance in patients without structural heart disease. The aim of this study was to assess the prognostic importance of PVCs morphology and duration in this patient group.

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Article Synopsis
  • Current methods for selecting breast cancer treatments, like tumor biopsies, have limitations due to variability in tumor characteristics and the invasiveness of the procedure.
  • The review highlights how molecular imaging, specifically using PET radiotracers, can help identify treatment targets in breast cancer, enhancing the accuracy of targeted therapy.
  • The conclusion suggests that PET imaging could improve precision medicine for breast cancer, while also exploring future options like theranostic trials using radioactive isotopes for treating metastatic cases.
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Objective: Blood cell populations, including red blood cells (RBC) unique to the extremely preterm (EPT) infant, are potentially lost due to frequent clinical blood sampling during neonatal intensive care. Currently, neonatal RBC population heterogeneity is not described by measurement of total haemoglobin or haematocrit. We therefore aimed to describe a subpopulation of large RBCs with hyper high haemoglobin content, >49 pg (Hyper-He) following EPT birth.

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Fast three-dimensional image generation for healthy brain aging using diffeomorphic registration.

Hum Brain Mapp

March 2023

Division of Biomedical Imaging, Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden.

Predicting brain aging can help in the early detection and prognosis of neurodegenerative diseases. Longitudinal cohorts of healthy subjects scanned through magnetic resonance imaging (MRI) have been essential to understand the structural brain changes due to aging. However, these cohorts suffer from missing data due to logistic issues in the recruitment of subjects.

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Aims: Premature ventricular contractions (PVCs) are a common form of arrhythmia associated with an unfavourable prognosis in patients with structural heart disease. However, the prognostic significance in absence of heart disease is debated. With this study, we aim to investigate whether subjects with PVC, without structural heart disease, have a worse prognosis than the general population.

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Background: The optimal treatment strategy for patients with synchronous colorectal liver metastases (CRLM) is unclear. The aim of this study was to compare the outcome of the simultaneous, liver-first, and colorectal-first surgical approaches.

Methods: All consecutive patients who had been resected with curative intent for CRLM were included.

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