Positioning the tip of a central venous catheter (CVC) within the superior vena cava (SVC) at or just above the level of the carina is generally considered acceptable for most short-term uses, …

2021年9月15日 · The superior vena cava (SVC) is a large valveless venous channel formed by the union of the brachiocephalic veins. It receives blood from the upper half of the body …

2024年12月18日 · Superior vena cava obstruction (SVCO) can occur from extrinsic compression, intrinsic stenosis, or thrombosis of the superior vena cava. Malignancies are the main cause …

2024年7月28日 · A left-sided superior vena cava (SVC) is the most common congenital venous anomaly in the chest, and in a minority of cases can result in a right-to-left shunt 3,4. A left …

2012年7月1日 · The CT scan (coronal reconstruction) detects the tumoral mass (tip of arrow) provoking a focal occlusion of the superior vena cava (SVC) (arrow). The underlying SVC …

2017年3月25日 · What is usually seen on CXR in SVC syndrome? CXR findings in SVC syndrome include a widened mediastinum and the presence of a mass near the SVC. What …

This is the first study that suggested specific range of the tip-to-carina distance on the simple chest X-ray (CXR) to ascertain correct positioning of central venous catheter (CVC) tip in …

2021年4月23日 · The chest radiograph (CXR) is abnormal in 84% of patients with SVCS, reflecting the malignancy that is causing the obstruction . Findings on CXR include mediastinal …

2015年10月9日 · The superior vena cava (SVC) is the largest central systemic vein in the mediastinum. Imaging (ie, radiography, computed tomography [CT], magnetic resonance [MR] …

Recommended imaging modality (assesses patency of the SVC, evaluate etiology mass vs. thrombus) CXR. Shows mediastinal mass or parenchymal lung mass (10% of patients) …