Superior vena cava (SVC) syndrome occurs in approximately 15,000 people in the United States each year. It most commonly occurs secondary to thoracic malignancies, mostly primary lung cancer and lymphoma. The cause is occlusion of the SVC or brachiocephalic veins. The following recommendations for initial imaging evaluation of acute or chronic SVC syndrome are presented. Contrast-enhanced chest CT scans, particularly CT angiography/venography, with or without simultaneous inclusion of the neck a…
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ACR Appropriateness Criteria® Ingested or Aspirated Foreign Body-Child
Ingestion or aspiration of foreign bodies (FBs) is a common reason for pediatric emergency department visits. In this document, three variants were developed. In Variant 1 (suspect ingested or aspirated FB, initial imaging), neck, chest, abdomen, and pelvis radiographs are usually appropriate to identify the presence and location of a swallowed or inhaled FB. Low-dose noncontrast chest CT may also be appropriate when there is high suspicion for radiolucent FB. In Variant 2 (suspect ingested FB, …
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A New Chapter for the ACR Appropriateness Criteria®
The ACR Appropriateness Criteria® (AC) have long been a trusted source for evidence-based imaging recommendations, guiding clinicians and referring providers in making the most appropriate imaging or treatment decisions across a wide range of clinical scenarios. As the landscape of medicine continues to evolve rapidly, so too must the way we deliver timely, relevant, and accessible guidance to the medical community.
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SBRT Delays Systemic Therapy in Oligometastatic Cancers
For patients with oligometastatic cancers, particularly kidney or prostate, stereotactic body radiotherapy may frequently delay the need for systemic therapy for at least 1 year. Medscape Medical News
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Development and characterization of new contrast agents for Photon-Counting CT
The visualization and characterization of benign and malignant structures using computed tomography (CT) is an integral part of clinical routine and thus, CT is one of the most important non-invasive imaging modalities available today [1–4]. The number of CT scans performed each year is approximately 300 million with an annual growth rate of 4 % [1]. A disadvantage of the current CT imaging technology, however, is the detection of the X-rays, which is conventionally performed using energy-integr…
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Hitting the Bull’s AI: artificial Intelligence-derived imaging features and their association with outcomes in CT-guided lung biopsy, a retrospective study
The role of artificial intelligence in medical imaging has become increasingly prevalent over the past years. Numerous applications have already appeared on the market, starting with analyzing conventional imaging like chest radiographs, but lately also encompassing cross-sectional modalities such as computed tomography (CT) or magnetic resonance imaging. Recent advances have paved the way for an automatic characterization of radiographic patterns in medical imaging data [1], which may enhance t…
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Ccta-based AI for Diagnosing ≥ 50 % coronary Stenosis: A patient- and Vessel-Level meta-analysis
A summary statement: With the continuous advancement of AI technology, it has been widely applied in cardiovascular imaging. However, robust evidence regarding AI’s diagnostic efficacy of 50 % coronary stenosis remains limited. Our meta-analysis synthesizing studies on CCTA-based AI systems for diagnosing ≥ 50 % coronary stenosis revealed consistently high AUC and sensitivity at both patient and vessel levels, confirming AI’s substantial diagnostic capability for ≥ 50 % coronary stenosis, while …