Real Time Visualization for Image Guided Procedures

Recent advances in imaging techniques have made it possible to acquire images in real-time during an interventional procedure (Fig. 8). During such procedures, usually, the real-time images themselves may be sufficient to provide the necessary guidance information needed for the procedure. However, there are instances when that may not be sufficient and advanced visualization becomes a powerful tool for guidance information. Information acquired in real-time and more detailed

FIGURE 6 Visualization of the functional correlation of vascular volume and vascular permeability in tumor mass obtained in vivo using MR microscopy (125-micron) technique. 3D volume visualization using color space registration shows that there is little overlap between vascular volume (green) and vascular permeability (red), confirming previous observations. See also Plate 114. (Images courtesy of M. Solaiyappan, Zaver Bhujwalla, Dmitri Artemov.)

FIGURE 6 Visualization of the functional correlation of vascular volume and vascular permeability in tumor mass obtained in vivo using MR microscopy (125-micron) technique. 3D volume visualization using color space registration shows that there is little overlap between vascular volume (green) and vascular permeability (red), confirming previous observations. See also Plate 114. (Images courtesy of M. Solaiyappan, Zaver Bhujwalla, Dmitri Artemov.)

information obtained prior to the procedure are combined to provide real-time guidance. Registration is an important factor and speed is a major issue in this kind of visualization due to real-time requirements.

FIGURE 7 Visualization of breathing lung: navigational visualization (virtual bronchoscopy) using segmented bronchial tree. (Images courtesy of M. Solaiyappan, S. A. Wood, E. Zerhouni, W. Mitzner.)
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