We found 14 studies that more or less accurately render rates of adverse episodes in pacemaker surgery.
Our work demonstrates a full-detail rendering rate from 5 to 10 fps for irregular volume data with mega-scale cell numbers on an NVIDIA GeForce 8800GTS.
In addition to the algorithms that are responsible for the execution of the marching cubes technique, some of the GPU inherent resources were employed in order to improve the rendering rate of the volume data.
In the context of the acceleration of marching cubes algorithm on the GPU, Johansson and Carr [18] conducted a comparative analysis of its execution using data structures, such as k-d trees [2] and interval trees [5], reporting the rendering rate speedups obtained in relation to the CPU.
In our imaging one volume consists of 256 B-frames and the camera speed was 70,000 A-scans per second; therefore, our volume imaging rate was 0.27 volumes per second, although our system could sustain a volume rendering rate of 15 volumes per second.
Among the four data structures described in this paper, interval tree provided the best rendering rates, but the time spent in building the structure was relatively high.
With the continuous advances of technology, it has been possible to achieve considerable rendering rates and a high degree of realism.
On the other hand, quadtree achieved very satisfactory building times, even for large volume datasets, besides slightly lower rendering rates compared to those of the acceleration with an interval tree.
The contributions of this work are a comparative performance analysis of the marching cubes technique with different spatial data structures, and a development of an application capable of manipulating datasets from several fields of knowledge, which permits its use as a framework to be integrated in visualization environments, obtaining high real-time rendering rates as well.
The second, a hybrid algebraic-numerical simulation and optimization approach, is used to render some rate constants identifiable, as well as to greatly narrow the bounds of the other rate constants that remain unidentifiable.
