This report describes three-dimensional (3D) fusion digital subtraction angiography (FDSA), a new algorithm for rotational angiography that combines reconstructions of the blood vessels and the osseous frame in a single 3D representation. 3D-FDSA is based on separate reconstructions of the mask and contrast sequences of the rotational acquisition. The two independent 3D data sets (3D-bone and 3...

Introduction: Diagnostic accuracy and cost will determine the success of contrast-enhanced 3D MRA in replacing catheter-based digital subtraction angiography (DSA) as the modality of choice for assessing the peripheral run-off arteries. Image subtraction, proposed by some investigators as a way to enhance diagnostic accuracy (1) lengthens data acquisition and post-processing times and therefore...

The purpose of this study was to improve dynamic two-dimensional projection magnetic resonance digital subtraction angiography by using remasking and filtering postprocessing techniques. Four methods were evaluated in 50 patients: default mask subtraction, remasked subtraction, filtering based on the SD, and linear filtering. The results demonstrated that postprocessing techniques such as linea...

In this paper, an effective method is developed to extract coronary vessels from X-ray digital subtraction angiography (DSA). Unlike the traditional image subtraction technique, we used the independent component analysis (ICA) to separate the coronary vessels and backgrounds. Experimental results indicate that the proposed method can achieve better performance than the traditional & 2011 Elsevi...

Conventional CT, MR, and digital subtraction angiography rely on the presence of luminal narrowing for the identification of vascular pathology offering limited insight into the offending pathophysiologic mechanism affecting the vessel. High-resolution MRI vessel wall imaging (VWI) has the potential to directly depict and characterize vessel wall pathology affecting the intracranial circulation...