DE-MRI depicts postablation scar
Delayed-enhancement MRI creates a clear picture of the atrial scarring produced during pulmonary vein RF ablation, according to researchers at Beth Israel Deaconess Medical Center in Boston.
Delayed-enhancement MRI creates a clear picture of the atrial scarring produced during pulmonary vein RF ablation, according to researchers at Beth Israel Deaconess Medical Center in Boston.
The study of 22 patients found that T1-weighted DE-MRI performed 15 to 30 minutes after gadolinium injection produced distinct differences in contrast between scarred and unscarred tissue around the circumference of the vein.
Contrast-enhanced MRI has been used for nearly six years for preprocedural assessments of pulmonary vein anatomy and PV stenosis. The addition of high resolution DE-MRI helps interventionists judge the potential effectiveness of RF ablation to inhibit atrial fibrillation, said Dana C. Peters, Ph.D., assistant scientific director of the hospital's cardiac MR center. Future research by Peters and cardiac MR section chief Dr. Warren Manning will assess whether fully circumferential anatomic scarring is required for successful RF ablation.
DE-MRI depicts . . .
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.
Possible Real-Time Adaptive Approach to Breast MRI Suggests ‘New Era’ of AI-Directed MRI
June 3rd 2025Assessing the simulated use of AI-generated suspicion scores for determining whether one should continue with full MRI or shift to an abbreviated MRI, the authors of a new study noted comparable sensitivity, specificity, and positive predictive value for biopsies between the MRI approaches.
