Linear accelerator and Greitz-Bergstrom's head fixation system in radiosurgery of single cerebral metastases. A report of 86 cases.
Between 1984 and 1991 86 patients with single cerebral metastases underwent linear accelerator radiosurgery using the atraumatic and reproducible Greitz-Bergström head-fixation device. Routine one-month follow-up documented disappearance of the tumour in 16 patients, with resolution of the oedema and ventricular shift. Shrinkage of the metastasis occurred in 51 patients. In 9 patients the tumour remained stable, in 7 there was progression of tumour size. Among the patients showing shrinkage of the tumour or unchanged tumour volume, repeated radiosurgery resulted in disappearance of the metastasis in 5 and further shrinkage in 28. In 14 patients routine stereotactic CT follow-up study led to the detection of a new metastasis, again treated with excellent results. Local recurrence occurred in 2 patients and radiation necrosis in the target area in 5 patients. Radiosurgery thus proves to be an appropriate alternative to surgery. The versatility of our non-invasive and painless method permits CT staging (which we consider essential) without hospitalization of the patient.
Centro di Radiochirurgia, Clinica Flaminia, Rome, Italy.
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Valentino
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Mirri
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Schinaia
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Dalle Ore
D000328:Adult; D000368:Aged; D001932:Brain Neoplasms / Q000401:mortality / Q000556:secondary* / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000401:mortality / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010315:Particle Accelerators; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000401:mortality; D016634:Radiosurgery / Q000295:instrumentation*; D015996:Survival Rate; D014057:Tomography, X-Ray Computed