Diffusion-Weighted MRI Guides Stroke Diagnosis
Diffusion-weighted MRI patterns can guide the work-up for patients presenting with acute ischemic stroke symptoms, according to a study in the November Journal of Neurology, Neurosurgery & Psychiatry.
Diffusion-weighted MRI patterns can guide the work-up for patients presenting with acute ischemic stroke symptoms, according to a study in the November Journal of Neurology, Neurosurgery & Psychiatry.
University of Pennsylvania researchers led by neurologist Monisha Kumar, MD, performed electrocardiogram, non-contrast head CT, brain MRI, head and neck magnetic resonance angiography (MRA), and transoesophageal echocardiography studies with 273 patients. Stroke neurologists determined TOAST (Trial of Org 10172 in Acute Stroke Treatment) classification on admission and on discharge. If the stroke subtype changed between the initial diagnosis and the diagnosis testing, they considered how CT and MRI figured into that change.
The team found that diffusion-weighted MRI patterns appear to predict the cause of stroke better than conventional methods. Further, they say their data suggest an MRI-based diagnostic algorithm can potentially eliminate the need for echocardiography in one-third of stroke patients and may cut back on the need for secondary extracranial vascular imaging studies.
Can Contrast-Enhanced Mammography be a Viable Screening Alternative to Breast MRI?
June 17th 2025While the addition of contrast-enhanced mammography (CEM) to digital breast tomosynthesis (DBT) led to over a 13 percent increase in false positive cases, researchers also noted over double the cancer yield per 1,000 women in comparison to DBT alone.
FDA Clears Enhanced MRI-Guided Laser Ablation System
June 5th 2025An alternative to an open neurosurgical approach, the Visualase V2 MRI-Guided Laser Ablation System reportedly utilizes laser interstitial thermal therapy (LITT) for targeted soft tissue ablation in patients with brain tumors and focal epilepsy.
Study: AI-Generated ADC Maps from MRI More Than Double Specificity in Prostate Cancer Detection
June 5th 2025Emerging research showed that AI-generated ADC mapping from MRI led to significant increases in accuracy, PPV and specificity in comparison to conventional ADC mapping while achieving a 93 percent sensitivity for PCa.
