ASFNR clinical state-of-practice: For posterior circulation large vessel occlusion stroke, use noncontrast CT to exclude hemorrhage, CT angiography to identify occlusion, and MRI with DWI as reference standard. Imaging scores like PC-ASPECTS help select patients for thrombectomy.
The ACR Appropriateness Criteria 2026 update provides imaging guidelines for suspected or confirmed diffuse lung disease, covering initial evaluation, acute exacerbation, and surveillance.
New expert consensus framework for symptomatic B3 breast lesions: assess concordance, lower excision threshold for discordant/palpable lesions, conservative management for concordant non-atypical lesions, and risk-based surveillance for atypia.
ACR Appropriateness Criteria for indolent lung cancer: For patients with slow-growing subsolid nodules or atypical cysts where surveillance is chosen over intervention, imaging follow-up aims to detect changes that alter management, with modality selection guided by accuracy and…
FDA has cleared Indigo Technologies' INDIRA CLOUD VIEWER, a cloud-based radiology image viewer, via the 510(k) pathway (product code LLZ).
Cross-Domain TransNet, a dual-domain Transformer, enhanced sparse-view CT reconstruction quality on the NIH-AAPM dataset, suppressing noise/artifacts and outperforming conventional and deep learning methods.
Fine-tuning deep learning models outperformed classical and transfer learning for detecting intussusception on point-of-care ultrasound, with a threshold-based approach yielding the best predictive performance in a study of 49 patients (8 positive). Small dataset limits generali…
A cascaded AI framework diagnosed ossicular chain malformations on CT with sensitivity 0.949 and specificity 0.800, matching senior radiologists and outperforming juniors.
Combining MRI PI-RADS score with PSA density improved prostate cancer detection vs either alone in 187 patients. PI-RADS OR 4.059 (95% CI 2.570-6.412) & log(PSAD) OR 2.743 (1.553-4.845); combined model AUC higher. Retrospective.
Proposed amendments to the American College of Radiology (ACR) bylaws have been released on ACR Engage for member review and feedback. The changes cover governance and operational rules. Full text available via the ACR.
In 73 DCM patients, deep-learning lesion mapping showed T2 lesions peaked rostral to maximal compression and independently predicted balance deficits (dorsal column P=0.032, reticulospinal P=0.011), shifting focus from global stenosis to tract-specific vulnerability.
Narrative review finds gut microbiome dysbiosis in ASD linked to brain structural/functional MRI changes. Microbiota-targeted interventions show promise but evidence is insufficient for clinical application. Standardized multicenter imaging-omics studies needed.
Multiphase MRI radiomics integrating tumor and peritumoral features predicted early progression in HCC: external validation AUC 0.77, C-index 0.65, HR 1.56 (p=0.05) for high-risk group. Retrospective, multicenter.
A discussion on the American College of Radiology's (ACR) Engage platform has radiologists sharing their ongoing frustrations with the PowerScribe voice recognition and reporting system, highlighting workflow challenges.
<![CDATA[Diagnostic Imaging's Weekly Scan: June 28 — July 4]]>
An emerging PET/CT radiopharmaceutical may double the detection of liver foci in patients with neuroendocrine tumors.
Matthew Truesdale, MD, on IsoPSA performance with and without mpMRI
A commercial AI algorithm measured spinopelvic parameters on full-spine X-rays with good-to-excellent reliability (ICC 0.79-0.99) compared with ground truth, closely matching radiologists. Accuracy worsened in patients with prior spinal fusion surgery.
Advances in imaging—especially speckle tracking echocardiography—and biomarkers like natriuretic peptides and hs-troponins are improving detection of Stage B heart failure, a subclinical phase with structural cardiac abnormalities. AI may boost precision.
Hypertension, especially poorly controlled, was linked to higher aneurysm wall enhancement (AWE) on MRI (OR 1.93; poorly controlled OR 2.58 vs normotension) in a matched multicenter analysis of 427 hypertensive and 427 normotensive patients with unruptured intracranial aneurysms.
Membership inference attacks on federated MRI-to-synthetic CT translation achieved AUC 0.92–0.99 across centers. Secure aggregation reduced AUC to near-random levels (0.23–0.56) without impacting synthesis quality.
A new review details PRECISE v2 refinements for prostate MRI active surveillance reporting, including minimum quality thresholds and disease visibility sub-groups. AI shows near-term promise for quality control and lesion tracking, but requires external validation before alterin…
The bMRI-QUAL scoring system: an important first step toward standardizing breast MRI quality.
Spectral CT iodine map habitat analysis identified four perfusion subtypes in gastric cancer, with response rates to neoadjuvant therapy ranging from 75% to 17%. A model combining perfusion subtype and Lauren classification achieved AUC 0.78 in external validation.
In a single-center study of 48 liver lesions, MR-guided microwave ablation had 95.8% technical success and 8.5% local recurrence. Adjacent vascular structures were the only factor linked to higher recurrence (p=0.019). No recurrence in lesions <20 mm.
In a survey of 18 international pediatric radiology centres (69% response), 88.9% deployed ≥1 AI tool, most commonly bone age assessment (44.4%). Mean clinical impact was 3.56/5; only 16.7% rated AI as transformational. The top barrier: lack of pediatric-specific datasets (83.3%…
Prospective study in 128 first-year medical students found XR/MRI-based case modules significantly improved anatomy test scores from 3.9→6.2 (Cohort 1) and 4.3→7.6 (Cohort 2), with knowledge retained at 8 weeks (p<0.01). No significant decay between immediate and delayed tests.
A structured educational intervention on a lumbar spinal stenosis classification system improved overall MRI grading correctness from 54.5% to 61.2% (p=0.006) and raised interobserver reliability (ICC from 0.71 to 0.75; p=0.030) among 37 multi-specialty physicians.
Neuroradiologists were 29.2% of PIs but secured 41.1% of cumulative NIH funding for clinician scientists in radiology from 2012-2025, a national analysis shows. They also led in number of grants (33.6%).
In 3 adolescents with Hirayama disease, neutral cervical MRI was nondiagnostic. Flexion MRI revealed anterior displacement of the posterior dural sac, enlargement of the posterior epidural space, and prominent epidural veins causing cord compression.
Authors respond to a letter clarifying recurrence, bleeding risk, and procedural burden after central renal tumor ablation.
A machine learning model using preoperative MRI and clinical features predicted meniscal repairability at arthroscopy with an AUC of 0.78 (95% CI 0.74-0.82) in a retrospective cohort of 491 patients. Independent predictors of non-repairability included ACL injury, cartilage dege…
In a prospective study of 127 patients with emphysema, deep learning-based SR-UTE MRI detected 81.8% of nodules <6 mm vs 54.5% with conventional UTE (p<0.05), with superior size agreement (ICC 0.89-0.93) and longitudinal reproducibility (ICC 0.90 vs 0.82) versus LDCT reference.
Retrospective study: end-to-end multisequence MRI fusion model (EMFA) achieved AUC 0.899 and 93.5% accuracy for preoperative 24-month glioma survival prediction, outperforming single-sequence baselines.
