RadPigeon · radiology news, read in five minutes

A nomogram integrating MRI-based deep learning score, immunoscore, and clinical factors achieved AUCs of 0.922 (training) and 0.914 (test) for predicting 5-year distant metastasis–free survival in 306 rectal cancer patients, enabling risk stratification.

Academic radiologySep 29

CardiacAI / InformaticsResearch

Automated AI echo in ATTR cardiomyopathy: moderate expert agreement, repeatability comparable to cardiologists

Automated artificial intelligence echocardiography in 62 transthyretin cardiomyopathy patients (178 exams) showed moderate agreement with a human reader (intraclass correlation 0.65, 0.51) and repeatability similar to experienced cardiologists (limits of agreement 3.6 mm, 37 mL).

The international journal of cardiovascular imagingSep 29

CardiacAI / InformaticsResearch

AI-derived left atrial volumes on calcium-scoring CT correlate strongly with echo but run systematically higher

AI-derived left atrial volume from noncontrast coronary artery calcium CT correlates strongly with echocardiography (r=0.82) but is systematically larger (mean 45.7 vs 32.2 mL/m2; bias 13.5 mL/m2). Agreement was robust across sex, BMI, cardiac phase.

The international journal of cardiovascular imagingSep 29

CardiacChest / ThoracicAI / InformaticsResearch

Periaortic fat CT phenotypes linked to type B aortic dissection in case-control study

CT-derived periaortic fat phenotypes (fat attenuation index AUC 0.819; fragmentation index 0.716) associated with type B aortic dissection vs controls; aortic volume AUC 0.966 (95% CI 0.941-0.991). Exploratory; tear risk index not standalone.

Journal of the American Heart AssociationSep 29

GeneralNewsBrief

Letter to the Editor: Cartilage T2 elevation in adolescent athletes-adaptation or early risk?

European radiologySep 29 +1 more

Nuclear / MolecularCardiacResearch

Virtual planar SPECT images yield accurate H/CL ratios in cardiac amyloidosis

Virtual planar images derived from SPECT provide comparable heart-to-contralateral lung ratios to standard planar imaging for 99mTc-PYP cardiac amyloidosis, with correlation ≥0.97 and statistical equivalence under attenuation and scatter corrections.

Annals of nuclear medicineSep 29

Nuclear / MolecularBody / AbdominalGeneralResearch

PSMA PET/CT Access Lags Behind Guideline-Recommended Use in Europe, Exploratory Data Show

Real-world access to PSMA PET/CT for prostate cancer remains below estimated eligible populations in staging and biochemical recurrence, with wide variation between countries. Barriers include reimbursement, capacity, logistics, and non-standardised referral pathways.

World journal of urologySep 29

GeneralAI / InformaticsNews

AI in Indian Radiology Needs Workflow and Governance, Not Just Algorithms

A perspective review argues that despite rising claims of expert-level AI performance and a forming regulatory framework, translating AI tools into reliable clinical value in Indian radiology remains uneven. Success will require more than technical capability—workflow integratio…

Indian Journal of Radiology and ImagingSep 29

PediatricAI / InformaticsEducationTrainee

Four Categories of AI in Obstetric Ultrasound and Their Point-of-Care Verifiability

AI in obstetric ultrasound divides into assistive, diagnostic, predictive, and prognostic tools. Only assistive and diagnostic tools are verifiable at point of care by the sonographer, while predictive and prognostic tools require caution.

Indian Journal of Radiology and ImagingSep 29

Neuro / Head & NeckResearch

Restriction spectrum imaging shows extracellular water shifts drive ECT-related volume changes

Restriction spectrum imaging in depression patients shows ECT causes right amygdala/hippocampus hindered water increase, free water decrease, and volume increase; volume partially resolves but amygdala extracellular changes persist, suggesting glymphatic flow shifts.

AJNR. American journal of neuroradiologySep 29

Neuro / Head & NeckResearch

Neighborhood Disadvantage Linked to Lower Brain Volumes in Men on Clinical MRI

In a clinical brain MRI study of 2,863 patients, greater neighborhood socioeconomic disadvantage was linked to lower brain volumes in cerebellar, frontal, and medial temporal networks in men but not women. Only cerebellar network association remained significant in sex-interacti…

AJNR. American journal of neuroradiologySep 29

Neuro / Head & NeckResearchTrainee

Wide Variation in Spine MRI Protocols for Spontaneous Intracranial Hypotension

Spine MRI protocols for spontaneous intracranial hypotension (SIH) show substantial heterogeneity in fat-suppression and echo time despite universal 3D T2-weighted imaging use across 9 US expert centers. Ambiguous terminology like 'MR myelography' complicates comparisons.

AJNR. American journal of neuroradiologySep 29

GeneralAI / InformaticsResearch

Multi-vendor AI across 20 centers speeds trauma radiograph and knee MRI reporting, with data-routing latency the main bottleneck

Radiologist artificial intelligence (AI) adoption hit 91.4%; AI use was tied to 26% lower report turnaround for trauma radiographs and 18% lower for knee magnetic resonance imaging (MRI) (p<0.001). Median latency: 2.06 min, 72% from data routing; 7.2% arrived after finalization.

Journal of the American College of Radiology : JACRSep 29

GeneralResearchBrief

Federated Learning - Towards Privacy-Preserving, Adaptable and Scalable Artificial Intelligence Integration in Clinical

Federated Learning - Towards Privacy-Preserving, Adaptable and Scalable Artificial Intelligence Integration in Clinical Breast Imaging Workflow.

Journal of the American College of Radiology : JACRSep 29

Neuro / Head & NeckResearchTrainee

MRI necrosis morphology predicts survival after chemoradiation in glioblastoma

Patients with a low-risk (compact) necrosis phenotype on post-chemoradiation MRI had nearly three-fold lower hazard of death (HR 0.35, p=0.001), independent of tumor volume, MGMT status, age, and KPS.

European radiologySep 29

BreastAI / InformaticsResearch

Breast AI Tomosynthesis and Synthesized-2D Scores Not Interchangeable, Add Limited Value Over Clinical Assessment

In 139 biopsy-referred breasts, tomosynthesis and synthesized-2D AI malignancy scores showed only moderate agreement (κ=0.53) despite similar AUCs (0.728 vs 0.717). Adding either score to a clinical model improved fit but not discrimination meaningfully. Do not downgrade a suspi…

Journal of imaging informatics in medicineSep 29

Neuro / Head & NeckPediatricResearch

Neonatal MRI count of enlarged perivascular spaces correlates with perinatal asphyxia severity and later sleep quality

In 319 neonates with perinatal asphyxia, MRI count of enlarged perivascular spaces was independently associated with brain injury severity (p=0.0001) and, in severe cases, later sleep disturbance (r=0.3365, p=0.0061).

World journal of pediatrics : WJPSep 29

GeneralResearchBrief

TEMPORARY REMOVAL: Association between Technical Component Billing for Medical Imaging and the Likelihood of Radiology P

TEMPORARY REMOVAL: Association between Technical Component Billing for Medical Imaging and the Likelihood of Radiology Practice Closure.

Journal of the American College of Radiology : JACRSep 29

Neuro / Head & NeckAI / InformaticsResearch

Cor2Vox: a cortex-grounded diffusion model for brain MRI synthesis

A new cortex-grounded diffusion model, Cor2Vox, synthesizes realistic brain MRIs by leveraging high-resolution cortical surface priors. It enabled anatomy-guided synthesis, simulation of gray matter atrophy, and harmonization of dementia scans, outperforming baseline methods.

Medical image analysisSep 29

GeneralAI / InformaticsEducationTrainee

AI-Augmented Virtual Simulation for Radiography Training: A Model for Resource-Constrained Settings

AI-enhanced virtual simulation can complement physical labs and clinicals in radiography education, not replace them. A three-layer model (AI prep, lab practice, supervised placement) is proposed for resource-limited settings. Expert validation critical as AI may be inaccurate.

Advances in medical education and practiceSep 29

Neuro / Head & NeckAI / InformaticsResearch

CNN-ViT fusion model on MRI stratifies survival in high-grade glioma after chemotherapy

A deep learning model fusing CNN and Vision Transformer features on MRI achieved external validation AUC 0.810 (95% CI 0.710–0.911) for stratifying high-grade glioma survival after temozolomide, in a multicenter study of 507 patients.

Computer methods and programs in biomedicineSep 29

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