Clinical Application of DSA

Because DSA has no overlap of bone and soft tissue shadows, the blood vessels and their lesions can be displayed more clearly, and it has replaced general angiography. With selective or superselective intubation, blood vessels and small lesions with a diameter of less than 200flm can be displayed well. It can be used to observe the dynamic image of blood flow and become a means of functional inspection. DSA can use a lower concentration of contrast agent, and the amount can be reduced. UNt Image Park-Sharing Radiology Resources

DSA is suitable for the examination of the heart and great blood vessels. It clearly shows abnormalities of intracardiac anatomy, aortic dissection, aortic aneurysm, aortic coarctation and branch stenosis, and aortic dysplasia. It is also the best display method for coronary arteries. It shows the cervical and intracranial arteries clearly, and is used to diagnose carotid artery stenosis or occlusion, intracranial aneurysm, arterial occlusion and abnormal vascular development, and observe the blood supply arteries of intracranial tumors. DSA is also effective for the examination of the abdominal aorta and its branches, as well as the major blood vessels of the limbs. UNt Image Park-Sharing Radiology Resources

DSA equipment and technology are quite mature, fast three-dimensional rotation real-time imaging, real-time subtraction function, can dynamically observe the morphology and hemodynamics of blood vessels and their lesions from different directions. For interventional techniques, especially intravascular interventional techniques, DSA is even more indispensable.