A stereotaxic frame, compatible with digital subtraction angiography, computed tomography, and magnetic resonance imaging, is described along with a set of software programs that run in an independent imaging computer system, as well as in the computers associated with each modality. Plexiglas plates fastened to the sides of the frame contain fiducial markers that can be recognized in the images and from which the section position and in-plane coordinates of any point in the image relative to the frame may be determined. Coordinate measurements of isolated point targets may be made to an accuracy of better than +/- 1 mm within a 15-cm field of view in the plane of the section or projection on all modalities. The stereotaxic system is of sufficiently high accuracy to be used on a routine clinical basis with one or more of the above modalities.
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http://dx.doi.org/10.1148/radiology.161.3.3538140 | DOI Listing |
Front Surg
January 2025
Department of Neurosurgery, General Hospital of Xinjiang Military Command, Urumqi, China.
Background: Traumatic scalp arteriovenous fistula is a rare vascular abnormality. Open surgical removal and embolization have been employed to address this condition.
Methods: In this report, we present a case involving a 41-year-old man who exhibited a progressively enlarging pulsatile mass in his right occipital scalp.
J Neurosurg Case Lessons
January 2025
Department of Neurosurgery, Faculty of Medicine, Azad Tehran University of Medical Sciences, Tehran, Iran.
Background: Pedicle screw insertion in posterior spinal surgery can cause vascular injuries, including rare intercostal artery pseudoaneurysms, which are typically discovered incidentally during reimaging. Onyx embolization is an effective treatment for small artery pseudoaneurysms.
Observations: A 36-year-old man who had initially presented with back pain that remained unresponsive to nonsteroidal anti-inflammatory drugs was diagnosed with a T7-8 sarcomatous lesion confirmed by magnetic resonance imaging and biopsy.
Cureus
December 2024
Vascular Neurosurgery, National Institute of Neurology and Neurosurgery, Mexico City, MEX.
The bifurcation of the middle cerebral artery (MCA) is one of the most common sites for the formation of cerebral aneurysms, presenting significant challenges for surgical management. A primary concern in this area is the recurrence of aneurysms following surgical clipping, which necessitates a thorough investigation of the contributing factors. This study examined all cases of rebleeding from previously clipped MCA aneurysms among 195 surgically treated patients over an 11-year period.
View Article and Find Full Text PDFCureus
December 2024
Department of Neurosurgery, Medical Research Institute Kitano Hospital, PIIF Tazuke-Kofukai, Osaka, JPN.
Intramedullary spinal cord metastasis (ISCM) is a rare manifestation of renal cell carcinoma (RCC). A 73-year-old man presented with left shoulder pain and left upper extremity weakness for two months. Magnetic resonance imaging (MRI) revealed intramedullary and intradural extramedullary lesions at the C5 level, compressing the spinal cord from the center of the cord and the left ventral side.
View Article and Find Full Text PDFAcute Med Surg
January 2025
Department of Emergency and Critical Care Medicine Institute of Medicine, University of Tsukuba Hospital Tsukuba Ibaraki Japan.
Background: Traumatic intracranial aneurysms (TICAs) can be fatal if ruptured. We report a case of a TICA, distant from facial bone fractures, successfully treated with flow diverter (FD) before rupture.
Case Presentation: A 20-year-old woman was admitted following a car accident.
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