Suspected Pulmonary Embolism: Annual Review Supports Current Testing
Ventilation and perfusion scans to diagnose pulmonary embolism remain largely accurate.
Multidetector CT pulmonary angiography is the major diagnostic modality used to help diagnose pulmonary embolism, according to an article published in the Journal of the American College of Radiology. An annual review by a multidisciplinary expert panel of the American College of Radiology Appropriateness Criteria has determined ventilation and perfusion scans to diagnose pulmonary embolism remain largely accurate and useful in certain settings. Lower-extremity ultrasound can substitute by demonstrating deep vein thrombosis; however, if negative, further studies to exclude PE are indicated. In all cases, correlation with the clinical status, particularly with risk factors, improves not only the accuracy of diagnostic imaging, but also overall utilization. Other diagnostic tests have limited roles. In instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment, they concluded.
Can CT-Based Deep Learning Bolster Prognostic Assessments of Ground-Glass Nodules?
June 19th 2025Emerging research shows that a multiple time-series deep learning model assessment of CT images provides 20 percent higher sensitivity than a delta radiomic model and 56 percent higher sensitivity than a clinical model for prognostic evaluation of ground-glass nodules.
