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BACKGROUND Previous structural magnetic resonance (MR) research in patients with posttraumatic stress disorder (PTSD) has found smaller hippocampal volumes in patients compared with control subjects. These studies have mostly involved subjects who have had PTSD for a number of years, such as war veterans or adult survivors of childhood abuse. Patients with(More)
OBJECTIVES The relation between complicated early childhood convulsion (ECC) and adult epilepsy is unclear, although a history of complicated ECC is obtainable in half of adults with epilepsy associated with hippocampal sclerosis. It is not known if the ECC is a marker of pre-existing brain damage or is itself harmful to the developing brain. The objective(More)
OBJECTIVE Radiosurgical ablation of the mesial temporal lobe structures can be used in the treatment of intractable temporal lobe epilepsy associated with mesial temporal sclerosis. In this study, we analyzed the magnetic resonance imaging (MRI) and spectroscopic changes that follow the treatment and report the clinical sequelae of the procedure. METHODS(More)
OBJECT During routine quality assurance (QA) testing of the gamma knife Automatic Positioning System (APS), it was noticed that slight pressure applied to the handle of the QA test tool produced visible rotation of the APS assembly. The authors describe the tests performed to quantify these movements. METHODS A stereotactic frame was positioned in the(More)
BACKGROUND The feasibility of anatomical lobectomy in patients with bronchial carcinoma in an area of severe heterogeneous emphysema whose respiratory reserve is outside operability guidelines has previously been confirmed. A review was undertaken to determine whether this approach is justified by long-term survival. METHODS A single surgeon's 8 year(More)
OBJECT In this report the authors explore the use of standardized plugging templates in formulating stereotactic radiosurgery dose plans for the Leksell gamma knife. METHODS Unplugged gamma knife dose plans previously used in the treatment of patients with trigeminal neuralgia (TN) and vestibular schwannoma (VS) were studied. Standardized plugging(More)
OBJECT The authors describe a series of commissioning checks that were developed following the installation of the Automatic Positioning System (APS) on the model C gamma knife. METHODS System reliability was checked by performing a series of test treatments using the APS. A phantom was designed to enable the exposure of small pieces of Gaf Chromic film(More)
One of the earliest indications for Gamma Knife treatment, radiosurgery for cerebral arteriovenous malformations, has stood the test of time. While initially only the ideal cases (small, compact nidus in a non-eloquent site) were chosen, increasingly larger, more complex AVMs were treated. Combination treatment with embolisation and surgery enables most(More)