World Neurosurg
-
To observe the hemodynamic changes of the superficial temporal artery (STA) by color Doppler and the correlation between the results of angiography and the hemodynamic changes of the STA after superficial temporal artery-middle cerebral artery (STA-MCA) bypass surgery for moyamoya disease. ⋯ Higher blood flow can develop in anastomosed STA after STA-MCA bypass surgery. The hemodynamic changes of STA after surgery mainly occurred at an early period after operation with little change at 3-month follow-up examination. The increase of blood flow in STA may be due to the low resistance of the intracranial vascular bed. Postoperative Doppler examination of the STA may predict angiographic results of the anastomosis in the early postoperative period. Continuous observation is necessary to identify an accurate correlation between quantitative alteration of the Doppler parameters and angiographic results.
-
The coexistence of a primary brain tumor such as high-grade glioma and superimposed abscess is a rare entity and can present a diagnostic and therapeutic challenge. The concomitant abscess may not be recognized until surgery, and the overall course of treatment may require adjustment in the presence of a coinciding infection. In the present report we evaluate the diagnosis and treatment of a glioblastoma multiforme with an intratumoral abscess. ⋯ There are insufficient guidelines on the treatment of a primary brain tumor with intratumoral abscess. In this report we present our therapeutic decisions in this rare case.
-
To define the role of Gamma Knife radiosurgery (GKRS) for the treatment of patients with hemangioblastomas. ⋯ Stereotactic radiosurgery offers a reasonable rate of tumor control and preservation of neurologic function in patients with hemangioblastomas. Patients with multiple hemangioblastomas are less likely to exhibit long-term tumor control of treated lesions following radiosurgery.
-
To apply a three-dimensional geometric model to various endoscopic endonasal approaches to analyze the bony anatomy of this area, quantify preoperatively bone removal, and optimize surgical planning. ⋯ Aside from laboratory anatomic dissection itself, this model is very effective in providing a depiction of bony landmarks and visual feedback of the amount of bone removed, improving the design of the craniectomy in the endoscopic endonasal midline skull base approach.
-
To create a simple artificial neural network (ANN) to predict the occurrence of symptomatic cerebral vasospasm (SCV) after aneurysmal subarachnoid hemorrhage (aSAH) based on clinical and radiographic factors and test its predictive ability against existing multiple logistic regression (MLR) models. ⋯ A simple ANN model was more sensitive and specific than MLR models in prediction of SCV in patients with aSAH. The conception of ANN modeling for cerebral vasospasm is introduced for a neurosurgical audience. With advanced ANN modeling, the clinician may expect to build improved models with more powerful prediction capabilities.