Neurologia medico-chirurgica
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Neurol. Med. Chir. (Tokyo) · Nov 1998
Case ReportsAngiographic documentation of de novo aneurysm--case report.
A 49-year-old female presented with a case of de novo aneurysm which was documented angiographically 10 years after the initial aneurysm rupture. The de novo aneurysm arose as a blister-like aneurysm from a previously normal location 7 years after the first ictus. The de novo aneurysm progressed to a saccular aneurysm and ruptured after another 3 years. We recommend late angiography in high-risk patients to prevent repeat ictus.
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Neurol. Med. Chir. (Tokyo) · Nov 1998
Case ReportsModel-based surgical planning and simulation of cranial base surgery.
Plastic skull models of seven individual patients were fabricated by stereolithography from three-dimensional data based on computed tomography bone images. Skull models were utilized for neurosurgical planning and simulation in the seven patients with cranial base lesions that were difficult to remove. Surgical approaches and areas of craniotomy were evaluated using the fabricated skull models. ⋯ The disadvantages of using skull models include the time and cost of making the models. The skull models provide a more realistic tool that is easier to handle than computer-graphic images. Surgical simulation using models facilitates difficult cranial base surgery and may help reduce surgical complications.