tumour
Seven million cancers a year are preventable, says report
Seven million people's cancer could be prevented each year, according to the first global analysis. A report by World Health Organization (WHO) scientists estimates 37% of cancers are caused by infections, lifestyle choices and environmental pollutants that could be avoided. This includes cervical cancers caused by human papilloma virus (HPV) infections which vaccination can help prevent, as well as a host of tumours caused by tobacco smoke from cigarettes. The researchers said their report showed there is a powerful opportunity to transform the lives of millions of people. Some cancers are inevitable - either because of damage we unavoidably build up in our DNA as we age or because we inherit genes that put us at greater risk of the disease.
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AI-assisted mammograms cut risk of developing aggressive breast cancer
People who are screened for breast cancer by AI-supported radiologists are less likely to develop aggressive cancers before their next screening round than those who are screened by radiologists alone, raising hopes that AI-assisted screening could save lives. "This is the first randomised controlled trial on the use of AI in mammography screening," says Kristina Lång at Lund University in Sweden. The AI-supported approach involves using the software - which has been trained on more than 200,000 mammography scans from 10 countries - to rank the likelihood of cancer being present in mammograms on a scale of 1 to 10, based on visual patterns in the scans. The scans receiving a score of 1 to 9 are then assessed by one experienced radiologist, while scans receiving a score of 10 - indicating cancer is most likely to be present - are assessed by two experienced radiologists. An earlier study found that this approach could detect 29 per cent more cancers than standard screening, where each mammogram is assessed by two radiologists, without increasing the rate of false detections - where a growth is flagged but follow-up tests reveal it isn't actually there or wouldn't go on to cause problems.
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- Health & Medicine > Therapeutic Area > Oncology > Breast Cancer (1.00)
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Evaluating Open-Weight Large Language Models for Structured Data Extraction from Narrative Medical Reports Across Multiple Use Cases and Languages
Spaanderman, Douwe J., Prathaban, Karthik, Zelina, Petr, Mouheb, Kaouther, Hejtmánek, Lukáš, Marzetti, Matthew, Schurink, Antonius W., Chan, Damian, Niemantsverdriet, Ruben, Hartmann, Frederik, Qian, Zhen, Thomeer, Maarten G. J., Holub, Petr, Akram, Farhan, Wolters, Frank J., Vernooij, Meike W., Verhoef, Cornelis, Bron, Esther E., Nováček, Vít, Grünhagen, Dirk J., Niessen, Wiro J., Starmans, Martijn P. A., Klein, Stefan
Large language models (LLMs) are increasingly used to extract structured information from free-text clinical records, but prior work often focuses on single tasks, limited models, and English-language reports. We evaluated 15 open-weight LLMs on pathology and radiology reports across six use cases, colorectal liver metastases, liver tumours, neurodegenerative diseases, soft-tissue tumours, melanomas, and sarcomas, at three institutes in the Netherlands, UK, and Czech Republic. Models included general-purpose and medical-specialised LLMs of various sizes, and six prompting strategies were compared: zero-shot, one-shot, few-shot, chain-of-thought, self-consistency, and prompt graph. Performance was assessed using task-appropriate metrics, with consensus rank aggregation and linear mixed-effects models quantifying variance. Top-ranked models achieved macro-average scores close to inter-rater agreement across tasks. Small-to-medium general-purpose models performed comparably to large models, while tiny and specialised models performed worse. Prompt graph and few-shot prompting improved performance by ~13%. Task-specific factors, including variable complexity and annotation variability, influenced results more than model size or prompting strategy. These findings show that open-weight LLMs can extract structured data from clinical reports across diseases, languages, and institutions, offering a scalable approach for clinical data curation.
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- Information Technology > Artificial Intelligence > Natural Language > Large Language Model (1.00)
- Information Technology > Artificial Intelligence > Machine Learning > Neural Networks > Deep Learning (0.69)
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Submanifold Sparse Convolutional Networks for Automated 3D Segmentation of Kidneys and Kidney Tumours in Computed Tomography
Alonso-Monsalve, Saúl, Whitehead, Leigh H., Aurisano, Adam, Sanchez, Lorena Escudero
The accurate delineation of tumours in radiological images like Computed Tomography is a very specialised and time-consuming task, and currently a bottleneck preventing quantitative analyses to be performed routinely in the clinical setting. For this reason, developing methods for the automated segmentation of tumours in medical imaging is of the utmost importance and has driven significant efforts in recent years. However, challenges regarding the impracticality of 3D scans, given the large amount of voxels to be analysed, usually requires the downsampling of such images or using patches thereof when applying traditional convolutional neural networks. To overcome this problem, in this paper we propose a new methodology that uses, divided into two stages, voxel sparsification and submanifold sparse convolutional networks. This method allows segmentations to be performed with high-resolution inputs and a native 3D model architecture, obtaining state-of-the-art accuracies while significantly reducing the computational resources needed in terms of GPU memory and time. We studied the deployment of this methodology in the context of Computed Tomography images of renal cancer patients from the KiTS23 challenge, and our method achieved results competitive with the challenge winners, with Dice similarity coefficients of 95.8% for kidneys + masses, 85.7% for tumours + cysts, and 80.3% for tumours alone. Crucially, our method also offers significant computational improvements, achieving up to a 60% reduction in inference time and up to a 75\% reduction in VRAM usage compared to an equivalent dense architecture, across both CPU and various GPU cards tested.
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- Health & Medicine > Therapeutic Area > Oncology > Kidney Cancer (1.00)
- Health & Medicine > Therapeutic Area > Nephrology (1.00)
- Health & Medicine > Diagnostic Medicine > Imaging (1.00)
Longitudinal Vestibular Schwannoma Dataset with Consensus-based Human-in-the-loop Annotations
Wijethilake, Navodini, Ivory, Marina, MacCormac, Oscar, Kumar, Siddhant, Kujawa, Aaron, Macias, Lorena Garcia-Foncillas, Burger, Rebecca, Hitchings, Amanda, Thomson, Suki, Barazi, Sinan, Maratos, Eleni, Obholzer, Rupert, Jiang, Dan, McClenaghan, Fiona, Chia, Kazumi, Al-Salihi, Omar, Thomas, Nick, Connor, Steve, Vercauteren, Tom, Shapey, Jonathan
Accurate segmentation of vestibular schwannoma (VS) on Magnetic Resonance Imaging (MRI) is essential for patient management but often requires time-intensive manual annotations by experts. While recent advances in deep learning (DL) have facilitated automated segmentation, challenges remain in achieving robust performance across diverse datasets and complex clinical cases. We present an annotated dataset stemming from a bootstrapped DL-based framework for iterative segmentation and quality refinement of VS in MRI. We combine data from multiple centres and rely on expert consensus for trustworthiness of the annotations. We show that our approach enables effective and resource-efficient generalisation of automated segmentation models to a target data distribution. The framework achieved a significant improvement in segmentation accuracy with a Dice Similarity Coefficient (DSC) increase from 0.9125 to 0.9670 on our target internal validation dataset, while maintaining stable performance on representative external datasets. Expert evaluation on 143 scans further highlighted areas for model refinement, revealing nuanced cases where segmentation required expert intervention. The proposed approach is estimated to enhance efficiency by approximately 37.4% compared to the conventional manual annotation process. Overall, our human-in-the-loop model training approach achieved high segmentation accuracy, highlighting its potential as a clinically adaptable and generalisable strategy for automated VS segmentation in diverse clinical settings. The dataset includes 190 patients, with tumour annotations available for 534 longitudinal contrast-enhanced T1-weighted (T1CE) scans from 184 patients, and non-annotated T2-weighted scans from 6 patients. This dataset is publicly accessible on The Cancer Imaging Archive (TCIA) (https://doi.org/10.7937/bq0z-xa62).
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- Health & Medicine > Nuclear Medicine (0.96)
- Health & Medicine > Therapeutic Area > Neurology (0.94)
The surprising reason why growing up with dogs (and not cats) can be good for your health
Trump accuses Comey of nearly starting a war as it's revealed why new MAGA star prosecutor rushed indictment Tim Allen reveals Erika Kirk's speech inspired him to forgive his father's killer 60 years after tragic death Girl found dead in D4vd's Tesla was AGED 12 when they met online. Now as masked men guard his mansion, friends unravel the truth... and tell of the chilling moment her texts stopped Someone is trying to drive a wedge between Charles and William. I'm no conspiracy theorist, but even my royal sources say something'calculated' and odd is going on. This is what's really happening, reveals REBECCA ENGLISH The $2 fruit that reverses diabetes... as 100million Americans suffer from deadly condition and most don't know it What would her mother think? Johnny Carson's Malibu home lists for $110m - and it has jaw-dropping hidden feature Selena Gomez and Benny Blanco's FULL wedding plans leaked: Top secret details, surprise celeb host and a MAJOR A-list drop out... ahead of ceremony this weekend Texas man's final words as he is executed for the'exorcism' killing of his girlfriend's 13-month-old daughter Creepy New England road is so isolated it only sees a car every few DAYS.
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Articulatory clarity and variability before and after surgery for tongue cancer
Tienkamp, Thomas, van Ast, Fleur, van der Veen, Roos, Rebernik, Teja, Buurke, Raoul, Hoekzema, Nikki, Polsterer, Katharina, Sekeres, Hedwig, van Son, Rob, Wieling, Martijn, Witjes, Max, de Visscher, Sebastiaan, Abur, Defne
Surgical treatment for tongue cancer can negatively affect the mobility and musculature of the tongue, which can influence articulatory clarity and variability. In this study, we investigated articulatory clarity through the vowel articulation index (VAI) and variability through vowel formant dispersion (VFD). Using a sentence reading task, we assessed 11 individuals pre and six months post tongue cancer surgery, alongside 11 sex- and age matched typical speakers. Our results show that while the VAI was significantly smaller post-surgery compared to pre-surgery, there was no significant difference between patients and typical speakers at either time point. Post-surgery, speakers had higher VFD values for /i/ compared to pre-surgery and typical speakers, signalling higher variability. Taken together, our results suggest that while articulatory clarity remained within typical ranges following surgery for tongue cancer for the speakers in our study, articulatory variability increased.
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LinGuinE: Longitudinal Guidance Estimation for Volumetric Lung Tumour Segmentation
Garibli, Nadine, Patwari, Mayank, Csiba, Bence, Wei, Yi, Sidiropoulos, Kostas
Segmentation of lung gross tumour volumes is an important first step in radiotherapy and surgical intervention, and is starting to play a role in assessing chemotherapy response. Response to a drug is measured by tracking the tumour volumes over a series of CT scans over a time period i.e. a longitudinal study. However, there currently exist few solutions for automated or semi-automated longitudinal tumour segmentation. This paper introduces LinGuinE, an automated method to segment a longitudinal series of lung tumours. A radiologist must provide an initial input, indicating the location of the tumour in a CT scan at an arbitrary time point. LinGuinE samples points inside this tumour and propagates them to another time point using rigid registration. A click validity classifier selects points which still fall within the tumour; these are used to automatically create a segmentation in the new time point. We test LinGuinE on a dataset acquired from a phase 3 clinical trial for lung tumours and the publicly available 4-D lung CBCT dataset. We find that LinGuinE improves the Dice on both test sets by over 20% (p< 0.05) across 63 longitudinal studies. We show that any time point can be used as a starting point, conduct ablation experiments, and find that our LinGuinE setup yields the best results on both test datasets.
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- Health & Medicine > Pharmaceuticals & Biotechnology (1.00)
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- Health & Medicine > Diagnostic Medicine > Imaging (1.00)
- Health & Medicine > Therapeutic Area > Oncology > Lung Cancer (0.31)
New AI test can predict which men will benefit from prostate cancer drug
Doctors have developed an artificial intelligence tool that can predict which men with prostate cancer will benefit from a drug that halves the risk of dying. Abiraterone has been described as a "gamechanger" treatment for the disease, which is the most common form of cancer in men in more than 100 countries. It has already helped hundreds of thousands with advanced prostate cancer to live longer. But some countries, including England, have stopped short of offering the "spectacular" drug more widely to men whose disease has not spread. Now a team from the US, UK and Switzerland have built an AI test that shows which men would most likely benefit from abiraterone. The "exciting" breakthrough will enable healthcare systems to roll out the drug to more men, and spare others unnecessary treatment.
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Revolutionizing Brain Tumor Imaging: Generating Synthetic 3D FA Maps from T1-Weighted MRI using CycleGAN Models
Du, Xin, Cozzi, Francesca M., Jena, Rajesh
Fractional anisotropy (FA) and direction-ally encoded colour (DEC) maps are essential for evaluating white matter integrity and structural connectivity in neu-roimaging. However, the spatial misalignment between FA maps and tractog-raphy atlases hinders their effective integration into predictive models. To address this issue, we propose a CycleGAN-based approach for generating FA and DEC maps directly from T1-weighted MRI scans, representing the first application of this technique to both healthy and tumor-affected tissues. Our model, trained on unpaired data, produces high-fidelity maps, which have been rigorously evaluated using Structural Similarity Index (SSIM) and Peak Signal-to-Noise Ratio (PSNR), demonstrating particularly robust performance in tumour regions. Radiological assessments further underscore the model's potential to enhance clinical workflows by providing an AI-driven alternative that reduces the necessity for additional scans.
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- Health & Medicine > Therapeutic Area > Oncology (1.00)
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