We report the hemodynamic assessment in a patient with cerebral arteriovenous malformation using time-resolved magnetic resonance angiography (TRMRA), a non-invasive modality, and catheter-based digital subtraction angiography (DSA), before and after embolization. Comparison of the results showed that TR-MRA produced very fast dynamic images and the findings closely matched those obtained at DS...

Health technology The authors studied contrast-enhanced magnetic resonance angiography (MRA) and digital subtraction angiography (DSA). MR images were obtained using a 1.5-T MR scanner (Signa CV/I, GE Healthcare) with a torso phased-array coil. Digital subtraction images were obtained using a 38-cm field of view and an image matrix of 1,024 x 1,024 pixels (Integris V3000, Philips Medical System...

BACKGROUND Conventional angiography, generally referred to as intra-arterial digital subtraction angiography, still remains the gold standard reference method for the diagnosis of intracranial aneurysms, helical computed tomography angiography (CTA) is a new non-invasive volumetric imaging method. OBJECTIVES This study was conducted to screen patients presenting with subarachnoidhemorrhage by...

The intraarterial digital subtraction angiography (DSA) of 52 patients with hepatic tumors was retrospectively reviewed. In 18 patients, intraarterial DSA was compared with conventional angiography. With DSA, the displacement of arteries, arterial encasement and tumor vessels were equally well identified on comparison with conventional angiography. DSA was superior to conventional angiography i...

During transcubital selective digital subtraction angiography (DSA), difficulties in catheterization of the supraaortic branches may arise as a result of improper catheter design (1, 2]. The catheters used for transfemoral cerebral angiography may not be suited for such studies , and for this reason we designed a new catheter for both transcubital aortic arch angiography and selective or semise...

Digital subtraction angiography (DSA) is the best method of evaluating carotid cavernous fistulas (CCF). DSA, however, has the disadvantage of being an invasive procedure. Computerized tomography (CT) angiography which is noninvasive, have been shown to provide more information about the size and location of fistulas. As a new method, Bone-Subtraction CT Angiography (BSCTA), than conventional C...

After aneurysmal subarachnoid hemorrhage, most center practices treatment modality selection based on size and geometry in computed tomographic angiography. However, the validity as compared to digital subtraction angiography (DSA) is not well studied. Twenty patients with ruptured internal carotid artery aneurysm were identified in a two-year period. Mean difference in measurements from 3D com...

Although conventional or digital X-ray angiography is still the standard method in the diagnosis of intracranial vascular abnormalities, MR imaging is gaining a more prominent role in this respect. MR angiography is a new method of vascular imaging that provides projection images resembling conventional angiography [1 , 2]. We present the MR angiographic findings in two patients with primitive ...

3D digital subtraction angiography (DSA) allows clinicians to review intracranial aneurysms and other vascular lesions. We report 2 basilar aneurysms that were imaged by both 3D DSA and DynaCT. These 2 techniques produced very different aneurysm appearances. Anterior portions of the aneurysms were invisible on 3D DSA but were revealed by DynaCT. These aneurysms appeared to have been flattened b...