By R. E. Anderson, J. E. Boggan, L. J. Cerullo, M. C. Chan, G. J. Dohrmann, M. S. B. Edwards, V. A. Fasano, J. M. Gilsbach, A. Harders, R. M. Ikeda, P. J. Kelly, E. R. Laws Jr., G. Lee, T. Letardi, D. T. Mason, C. R. Neblett, R. W. Rand, A. Renieri, I. L. Ri
Since the creation of electrosurgery the concepts of surgical procedure at the fearful approach have undergone extra advancements (bipolar coagulation, microscope), no matter if the strategy used to be now not considerably transformed. this present day, laser represents a brand new "discipline", because it bargains a brand new means of appearing all simple maneuvers (dissection, demolition, hemostasis, vessel sutures). additionally, laser deals the opportunity of a different maneuver, particularly relief of the quantity of a tumoral mass via vaporization. Its program isn't really limited to standard neurosurgery yet extends additionally to stereotactic and vascular neurosurgery. Laser surgical procedure has additionally stimulated the anesthesiologic innovations. even as new instrumentation has been brought: CUSA ultrasonic aspiration, echotomography, and Doppler flowmeter. i've got had the opportunity to make use of those new applied sciences all at a time and feature come to the realization that we face the sunrise of a brand new method which has already proven its validity and absence of inconveniences, and whose item is to extend the precision of neurological surgical procedure. The technological improvement continues to be occurring, and a few advancements are to be foreseen. Laser scalpel is splitting the preliminary laser surgical procedure into NO contact and contact surgical procedure with laser. As new instrumentarium could be constructed, a variable and tunable beam turns into on hand. for instance, in many years unfastened Electron Laser will extra upload to the development during this field.
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Probes were sterilized with formaline. Scanning was performed on the exposed tumor and on the walls of the surgical cavity after the removal to check the evidence of remaining neoplastic tissue. Edema and infiltrated Fig. 7. Sonographic pattern (8 MHz) of gliosis areas could be detected with an imaging capability up to 1 mm (Figs. 6 and 7). Peculiar findings could be distinguished in 6 different kinds of tumor (glioblastoma, astrocytoma, neurinoma, oligodendroglioma and metastases), pattern being closely correlated to pathology.
1980: Applications of pulsed Doppler techniques. Radioi. Clin. N. Amer. 18, 79-103. 4. Bandyk, D. , Zierler, R. , Berni, G. , 1983: Pulsed Doppler velocity patterns produced by arterial anastomoses. Ultrasound Med. BioI. 9, 79-87. 5. Van Beek, A. , Link, W. , Bennett, J. , 1975: Ultrasound evaluation of microanastomosis. Arch. Surg. 110,945-949. 6. Blair, W. , Greene, E. , 1981: Hemodynamics after microsurgical anastomosis: the effects of topical lidocaine. J. Microsurg. 2, 157-164. 7. Blair, W.
Isec Fig. 13. Anterior communicating aneurysm with generally high and irregular flow pattern with normal vessel calibers as a sign of a reduced peripheral resistance. A common finding in acute aneurysm surgery. 5 kHz) I , . t. , feeding arteries draining veins after exclusion lkHzLlsec Fig. 14. Flow pattern of an intracerebral arteriovenous malformation. Depending on the diameter and flow volume in the arteries, an accelerated to irregular flow with high diastolic components is found. The veins show marked pulsations but with smooth peaks Intraoperative Dopplersonography 43 reevaluation of their history revealed additional previous bleedings, which were responsible for the pseudo-early development of vasospasm.
Advanced Intraoperative Technologies in Neurosurgery by R. E. Anderson, J. E. Boggan, L. J. Cerullo, M. C. Chan, G. J. Dohrmann, M. S. B. Edwards, V. A. Fasano, J. M. Gilsbach, A. Harders, R. M. Ikeda, P. J. Kelly, E. R. Laws Jr., G. Lee, T. Letardi, D. T. Mason, C. R. Neblett, R. W. Rand, A. Renieri, I. L. Ri