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Endurance Sports and Atrial Fibrillation: A Puzzling Conundrum.
J Clin Med
December 2024
Cardiology Clinic, University Clinical Center of Serbia, 11000 Belgrade, Serbia.
The confirmed benefits of regular moderate exercise on cardiovascular health have positioned athletes as an illustration of well-being. However, concerns have arisen regarding the potential predisposition to arrhythmias in individuals engaged in prolonged strenuous exercise. Atrial fibrillation (AF), the most common heart arrhythmia, is typically associated with age-related risks but has been documented in otherwise healthy young and middle-aged endurance athletes.
View Article and Find Full Text PDFBreast cancer classification based on breast tissue structures using the Jigsaw puzzle task in self-supervised learning.
Radiol Phys Technol
January 2025
Department of Diagnostic Imaging, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.
Article Synopsis
- Self-supervised learning (SSL) is increasingly being used in medical imaging, particularly through methods like the Jigsaw puzzle task, which helps models learn features and relationships within images without needing labeled data.
- The study evaluated different pre-training methods on mammographic images from the Chinese Mammography Database, comparing the effectiveness of models that used Jigsaw puzzles, ImageNet tasks, or no pre-training at all in detecting breast cancer.
- Results showed that models utilizing the Jigsaw puzzle task achieved the highest area under the curve (AUC) scores, indicating its potential to improve classification accuracy even with limited data.
Tumour mimics in paediatric neuroimaging.
Neuroradiology
November 2024
Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.
Distinguishing tumours from other conditions is a primary challenge in paediatric neuro-radiology. This paper aims to describe mimics, which are non-neoplastic conditions that have features similar to a neoplastic process caused by a non-neoplastic entity, and chameleons, which are uncommon presentations of brain tumours that are mistaken for other diagnoses. By doing so, we aim to raise awareness of these conditions and prevent inappropriate investigations or treatment in children.
View Article and Find Full Text PDFThe brain's "dark energy" puzzle : [F]FDG uptake, delivery and phosphorylation, and their coupling with resting-state brain activity.
bioRxiv
October 2024
Padova Neuroscience Center, University of Padova, 35129, Padova, Italy.
The brain's resting-state energy consumption is expected to be mainly driven by spontaneous activity. In our previous work, we extracted a wide range of features from resting-state fMRI (rs-fMRI), and used them to predict [F]FDG PET SUVR as a proxy of glucose metabolism. Here, we expanded upon our previous effort by estimating [F]FDG kinetic parameters according to Sokoloff's model, i.
View Article and Find Full Text PDFInflammatory Pseudotumor of the Ulnar Nerve Mimicking a Malignant Peripheral Nerve Sheath Tumor: A Radiologic Puzzle.
Semin Musculoskelet Radiol
October 2024
Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands.
Inflammatory pseudotumor (IPT) of a peripheral nerve is a rare non-neoplastic tumefactive inflammatory condition, often mimicking malignancy. The etiology of this condition is still unknown. Clinically and radiologically, the lesion can mimic a malignant tumor.
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