Brain CT Was Normal in 72% of Acute Dizziness Emergency Cases

Brain CT Was Normal in 72% of Acute Dizziness Emergency Cases

TL;DR: A 2026 preprint in medRxiv found that routine non-contrast brain computed tomography (CT) had a low acute-pathology yield in 291 emergency patients with new dizziness, while diabetes, ataxic gait, and headache marked higher odds of abnormal CT findings. Key Findings 291-patient cohort: The retrospective analysis included consecutive adults with new-onset dizziness who underwent non-contrast …

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EmulatRx Agentic AI Used Real-World Data for Clinical Trial Design

EmulatRx Agentic AI Used Real-World Data for Clinical Trial Design

TL;DR: A 2026 Nature Communications paper introduced EmulatRx, a multi-agent AI framework that used real-world clinical data to help design target-trial-emulation workflows for acute and chronic diseases, including Alzheimer disease and Parkinson disease examples. Key Findings 20-trial evaluation: Researchers curated 20 clinical trials, with 10 acute-condition trials from MIMIC-IV and 10 chronic-disease trials from INSIGHT. …

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AI MRI Reprocessing Revealed Hidden MS Cortical Lesions

AI MRI Reprocessing Revealed Hidden MS Cortical Lesions

TL;DR: A 2026 study in Communications Medicine reported that artificial intelligence (AI) and multi-contrast MRI post-processing could reveal cortical lesions in multiple sclerosis trial scans that standard MRI review usually misses. Key Findings 80-person methods subset: Researchers analyzed 80 people with primary progressive multiple sclerosis from the phase 3 ORATORIO trial, then trained additional models …

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Care Robots Reduced Neuropsychiatric Symptoms but Evidence Stayed Low Certainty

Care Robots Reduced Neuropsychiatric Symptoms but Evidence Stayed Low Certainty

TL;DR: A 2026 systematic review and meta-analysis in Journal of Medical Internet Research found that care robots showed a low-certainty reduction in neuropsychiatric symptoms, but six other pooled outcome domains did not reach statistical significance. Key Findings 34 randomized trials: The review included 34 randomized controlled studies across 17 countries, with 2,476 participants. 20 meta-analyzed …

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FP-CIT SPECT Ratios Improved Parkinsonism Classification

FP-CIT SPECT Ratios Improved Parkinsonism Classification

TL;DR: A 2026 study in European Journal of Nuclear Medicine and Molecular Imaging found that semiquantitative [123I]FP-CIT SPECT metrics, especially caudate-to-putamen and sensorimotor-to-limbic ratios, helped distinguish Parkinson’s disease from atypical parkinsonian syndromes, while a random forest classifier remained more useful as decision support than as a standalone diagnosis. Key Findings 706-patient cohort: The study included …

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AI Chatbots Did Not Significantly Reduce Depression Symptoms in Meta-Analysis

AI Chatbots Did Not Significantly Reduce Depression Symptoms in Meta-Analysis

TL;DR: A 2026 meta-analysis in Journal of Medical Internet Research did not find a statistically significant reduction in Patient Health Questionnaire-9 (PHQ-9) depression scores with AI-driven chatbots, but emotionally responsive, structured, and frequent interactions were more consistently associated with user adherence. Key Findings 11 randomized trials: The review included 11 RCTs with 2220 participants for …

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GPT-4 Turbo Debate Impersonation Increased Authenticity Ratings

GPT-4 Turbo Debate Impersonation Increased Authenticity Ratings

TL;DR: A 2026 study in PLOS One found that UK survey participants rated LLM-generated impersonated debate responses as more authentic, coherent, and relevant than real televised-debate answers, even though many generated answers differed from what the real speakers said. Key Findings 948 UK participants: The survey used a representative cross-section of British society to rate …

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Focused Ultrasound and rTMS Had Similar Stroke Motor Endpoints

Focused Ultrasound and rTMS Had Similar Stroke Motor Endpoints

TL;DR: A 2026 secondary analysis in PLOS One found that low-intensity focused ultrasound and repetitive transcranial magnetic stimulation (rTMS) had similar short-term post-stroke motor endpoint scores, while change-from-baseline Fugl-Meyer gains were larger with focused ultrasound. Key Findings 50-person comparison: The analysis compared 25 subacute stroke patients assigned to LIFU with 25 assigned to rTMS. 10 …

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rTMS Plus Risperidone Improved Schizophrenia Cognitive and Aggression Scores

rTMS Plus Risperidone Improved Schizophrenia Cognitive and Aggression Scores

TL;DR: A 2026 randomized controlled study in Pakistan Journal of Pharmaceutical Sciences found that adding 20 Hz repetitive transcranial magnetic stimulation (rTMS) to risperidone was linked with lower cognitive-factor and aggression scores after 4 weeks in schizophrenia patients. Key Findings Schizophrenia trial sample: The single-center trial randomized 80 patients, with 40 assigned to risperidone alone …

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MR-AIV Brain Fluid Transport AI Stayed Robust Across Modeling Tests

MR-AIV Brain Fluid Transport AI Stayed Robust Across Modeling Tests

TL;DR: A 2026 preprint in bioRxiv found that Magnetic Resonance Artificial Intelligence Velocimetry (MR-AIV), a physics-informed AI method for estimating brain fluid transport, produced stable velocity and permeability maps across several modeling stress tests. Key Findings Brain-fluid target: MR-AIV estimates three-dimensional velocity, pressure, and permeability fields from dynamic contrast-enhanced MRI. 10-region initialization: A universal, anatomically …

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