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. Author manuscript; available in PMC: 2014 May 1.
Published in final edited form as: Urol Clin North Am. 2014 May;41(2):315–326. doi: 10.1016/j.ucl.2014.01.007

Figure 3.

Figure 3

Process of MRI-US Fusion. MR and TRUS images are outlined or segmented (1) and then rigidly aligned (2). Fusion then proceeds involving a surface registration (3), and elastic (non-rigid) interpolation (4). Finally, the registered, or superimposed images are produced on a monitor, where targeted biopsy is performed. The target is derived from the MRI; the biopsy aiming is via real-time ultrasound13.From Natarajan S, Marks LS, Margolis DJ, et al. Clinical application of a 3D ultrasound-guided prostate biopsy system. Urologic oncology. May-Jun 2011;29(3):334-342; with permission.