Thirty-five patients with deep brain tumours have been submitted to transtumoral stereotactic impedance monitoring and serial biopsy. The direct examination of the biopsy samples confirmed the presumptive clinical and neuroradiological diagnosis in 25 patients, but in 10 patients the histological diagnosis differed from the presumptive one. In this second group the treatment was changed as a re...

The aim of this study was to assess survival and prognostic factors of 98 consecutive patients with unresectable glioblastoma multiforme (GBM) after stereotactic biopsy. Patients were diagnosed between 1993 and 1998, and the treatment modality subsequent to stereotactic biopsy was determined by the year of diagnosis. Before 1995, patients did not receive further specific therapy after stereotac...

Imaging-guided breast biopsy performed with large-core needles can accurately diagnose most breast pathologies, often allowing a diagnosis to be made more quickly and less expensively than with surgical biopsy. Major complications, such as hemorrhage and infection, are extremely rare, although post-biopsy ecchymosis and tenderness are not unusual. Because less tissue is removed, post-biopsy cos...

BACKGROUND Neurosurgeons have preferred to perform the stereotactic biopsy for pathologic diagnosis when the intracranial pathology located eloquent areas and deep sites of the brain. AIM To get a higher ratio of definite pathologic diagnosis during stereotactic biopsy and develop practical method. MATERIAL AND METHODS We determined at least two different target points and two different tra...

device is a widely used technique for the diagnosis of nonpalpable breast lesions discovered by mammography (1-3). An add-on device attached to a regular mammography unit can be used for a stereotactic breast biopsy. Its advantages are that it is less expensive than a prone table and extra space for the equipment is unnecessary (3). There is a paucity of reports on the effectiveness of the use ...

To prove feasibility of proton chemical shift imaging ((1)H CSI) during stereotactic procedure, authors performed (1)H CSI in combination with a stereotactic headframe and selected targets according to local metabolic information, evaluated the pathologic results. The (1)H CSI directed stereotactic biopsy was performed in four patients. (1)H CSI and conventional Gd-enhancement stereotactic MRI ...

This is a review of the positive biopsy rate of nonpalpable breast lesions detected on mammography. The histology of 130 hookwire excision biopsy from 1990 to 1995 and the cytology of 39 stereotactic fine needle aspiration cytology in 1995 were reviewed. The yearly positive biopsy rate of each procedure was determined. In 1990, the positive biopsy rate for hookwire excision biopsy was 15%, in 1...

BACKGROUND The aim of this study was to assess the diagnostic performance of stereotactic core needle breast biopsy using spring-loaded or vacuum-assisted techniques for impalpable microcalcification lesions in Taiwanese women. METHODS We retrospectively reviewed the data of patients who received stereotactic core needle breast biopsy for impalpable mammographic microcalcification lesions fro...

BACKGROUND With the introduction of stereotactic surgery in humans by Spiegel and Wycis in 1947 and the great advances in neuroimaging, image-guided stereotactic brain biopsy is the mainstay for diagnosis of intrinsic deep-seated brain lesions. Stereotactic biopsy is usually safe, and the reported rate of complications is minimal, with mortality being reported in less than 1% and significant mo...

BACKGROUND Image-guided procedures such as computed tomography (CT) guided, neuronavigator-guided and ultrasound-guided methods can assist neurosurgeons in localizing the intraparenchymal lesion of the brain. However, despite improvements in the imaging techniques, an accurate diagnosis of intrinsic lesion requires tissue sampling and histological verification. AIMS The present study was carr...