D. W. Roberts, J. W. Strohbehn, J. F. Hatch, W. Murray, and H. Kettenberger, "A frameless stereotaxic integration of computerized tomographic imaging and the operating microscope", J. Neurosurg., vol. 65, pp. 545--549, 1986.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....in frameless stereotactic navigation, as the ultimate miniaturization of that external reference system [22, 23] Through stereotaxy [19, 20, 23] computers have been introduced into neurosurgical procedures. Between1986and 1995, several groups developed so called frameless stereotactic systems [11, 24 36]. These systems provide the surgeon and patient with precise guidance without the obstruction and discomfort of frame application [23, 37] improving neurosurgical efficiency and surgical technique. The major shortcoming of both frame based and frameless stereotactic systems is their use of ....

.... of the presurgical data (image space) to the patient (physical space) in surgery [30] With computer assisted navigational tools, the patient s anatomy can be visualized as 2D or 3D representations in relationship to the position of tracked, hand held instruments within the surgical field [11, 24 36]. 6 A. NABAVI et al. FIGURE 2 Multimodal image information (graphical user interface of the 3D Slicer [15, 16] Image fusion using the presurgical structural MRI, MR Angiography and SPECT (Thallium and Technetium) The image shows a cutaway of the skin model. The cut planes are the reformatted ....

Roberts, D. W., Strohbehn, J. W., Hatch, J. F., Murray, W. and Kettenberger, H. (1986). A frameless stereotaxic integration of computerized tomographic imaging and the operating microscope, J. Neurosurg., 65, 545--9.

....determination of the coordinates of corresponding points in different images and or physical space and the estimation of the geometric transformation using these corresponding points. The points may be either intrinsic [16, 45, 49, 55, 79, 86, 87, 88, 111, 119, 124, 133, 134, 139, 171] extrinsic [3, 14, 30, 47, 49, 56, 58, 60, 79, 80, 81, 105, 114, 116, 135, 136, 149, 151, 163, 164, 178, 188, 189, 190, 198] or a combination of both [117, 118] Intrinsic points are derived from patient specific image properties, e.g. anatomical landmark points. Extrinsic points are derived from artificially applied markers, e.g. glass beads. Selection of appropriate points is a key factor in the success of a ....

....by the segmentation algorithm to contain marker. The physical space coordinates of extrinsic markers have been determined by touching the markers with an articulated arm [3, 60, 116, 178] or a low frequency magnetic field 3 D digitizer [105] observing the markers in a stereoscopic microscope [163], and ultrasonic rangefinding [56] Lewis and Galloway recently presented a technique based on the reflected 18 A mode ultrasound signal for transcutaneously localizing small plastic cylinders implanted in pork scapula [128] Haynor et al. determined the coordinates of 2 mm chrome alloy markers ....

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D. W. Roberts, J. W. Strohbehn, J. F. Hatch, W. Murray, and H. Kettenberger. A frameless stereotaxic integration of computerized tomographic imaging and the operating microscope. J. Neurosurg., 65:545--549, 1986.

....these systems provide useful surgical guidance, the surgeon must still look away from the operative scene in order to view the guidance information. Furthermore, they do not generally provide 3D visualisation of the structures of interest. In an effort to overcome these limitations, previous work [1, 2] has demonstrated that images can be overlaid into the optics of a surgical microscope. This has been achieved by registering the pre operative image to the physical scene, tracking movement of the microscope, and immobilising the patient. Overlays have been monocular. 2 The MAGI System The MAGI ....

D. W. Roberts, J. W. Strohbehn, J. Hatch et al. "A frameless stereotaxic integration of computerized tomographic imaging and the operating microscope." Journal of Neurosurgery 65, pp. 545--549, 1986.

....surgery, in which region of interest in the operative target can be localized and displayed using the preoperative images. This technique has contributed to a reduction of the invasiveness for the patient. The surgical microscope is an attractive vehicle for such applications. Roberts, et al. [6] reported the development of a surgical microscope guided by pre operative CT by using an ultrasonic tracking sensor. The outlines of a tumor were projected into the optics of the microscope. Edwards, et al. 2] presented a stereo operating microscope that projects stereo projections of 3D ....

Roberts DW, Strohbehn JW, Hatch JF, et al: A frameless stereotaxic integration of computerized tomographic imaging and the operating microscope. J Neurosurg 65 (1986) 545-549

No context found.

D. W. Roberts, J. W. Strohbehn, J. F. Hatch, W. Murray, and H. Kettenberger, "A frameless stereotaxic integration of computerized tomographic imaging and the operating microscope", J. Neurosurg., vol. 65, pp. 545--549, 1986.

No context found.

Roberts DW, Strohbehn JW, Hatch JF, Murray W, Kettenberger H: A frameless stereotaxic integration of computerized tomographic imaging and the operating microscope. J Neurosurg 65:545-9, 1986.

No context found.

Robert DW, Strobehn JW, Hatch JF, et al. A frameless stereotaxic integration of computerized tomographic imaging and the operating microscope. J Neurosurg 65:545-549, 1986

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