Abstract:
The superior vena cava (SVC) is a large, yet short vein that carries deoxygenated blood from the upper half of the body to the heart's right atrium,
SVC can be visualized and reliably evaluated by computed tomography (CT). Opacification of this vessel with iodinated contrast material and multiplanar reformations can provide information concerning the patency of the lumen and the relationship of the SVC with adjacent mediastinal and lung structures, both normal and abnormal. SVC obstruction leading to SVC syndrome is the most common condition affecting this vessel.
Computed tomography has accurately depicts both the site of SVC obestruction and important collateral pathway and clearly distinguies SVCthrombosis and external comperssion .
The study was conducted in Modern Medical Center and Elnelin Medical Center.
The data were collected using random sample of fifty patients,30 male and 20 females with different ages are came to CT department for CT chest with contrast . All of them were scanned for CT chest with contrast .also measurment were taken electronically for diameter of SVC(horizental,vertical) in axial image in three slices upper (after the joining of two brachiocephalic veins) , middle and lower (befor entering the heart ), then averge were taken , length were taken in recostruction image (coronal) at the joining of two brachiocephalic veins befor entering of the heart . then the data put is sheet which contains the sec,age, diameter of SVC(horizental,vertical) ,length of SVCand CT finding
The research shows that 20 of patients were normal, 9 were affected by inflammatory disease, 3 were affected by tumors and 18 were affected by vascular disease.
The research shows that the length of SVC is affected by vascular and inflammatory disease.
The research shows that vascular disease affected male rather than female.