When volumetric imaging techniques were invented, the number ofĢD images viewed by radiologists skyrocketed, because each volume now contained a series of 2D images or slices. Radiologists became accustomed to visualizing and interpreting 2D x-ray images quite well. Imaging techniques, plain 2D x-ray images ruled the field of diagnostic medical imaging. Prior to the invention of volumetric medical Although humans are extremely adept at visualizing and interpreting 2D images, most humans have difficulty visualizing 3D volumetric data sets. Visualizing volumetric data sets is challenging. Volume rendering is also used in theįield of oil exploration to visualize volumetric data. Volume rendering is a technique for visualizing 3D volumetric data sets generated by medical imaging techniques such as computed tomography (CT), magnetic resonance imaging (MRI), and 3D ultrasound. We present results using real fetal ultrasound data. We use 3D projective texture mapping to volume render ultrasound data. Vertex and fragment processors of the GPU. In this chapter, we present a technique for volume rendering time-varying 3D medical ultrasound volumes-that is, 4D volumes-using the For example, myocardial function and fetalĪbnormalities, such as cleft palate, can be visualized using volume rendering of ultrasound data. The vast computing power of modern programmable GPUs can be harnessed effectively to visualize 3D medical data, potentially resulting in quicker and more effective diagnoses of diseases. ![]() Applying Real-Time Shading to 3D Ultrasound Visualization
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