Neural Noise as a Real Time Guide for Tumor Site Verification during Stereotactic Biopsy of Brain Tumors

1987 ◽  
Vol 50 (1-6) ◽  
pp. 195-199
Author(s):  
Masafumi Yoshida ◽  
Shinken Kuramoto
Keyword(s):  
Brain Tumors ◽  
Real Time ◽  
Stereotactic Biopsy ◽  
Tumor Site ◽  
Neural Noise

Intraoperative use of Doppler ultrasound and endoscopic monitoring in the stereotactic biopsy of malignant brain tumors

1994 ◽  
Vol 80 (3) ◽  
pp. 570-574 ◽  
Author(s):  
Toshiki Yamasaki ◽  
Kouzo Moritake ◽  
Mikio Takaya ◽  
Takato Kagawa ◽  
Hidemasa Nagai ◽  
...  
Keyword(s):  
Blood Flow ◽  
Brain Tumors ◽  
Real Time ◽  
Acoustic Signal ◽  
Stereotactic Biopsy ◽  
Axial Flow ◽  
Fast Fourier Transformation ◽  
Biopsy Needle ◽  
Content Type ◽  
Malignant Brain Tumors

✓ An intraoperative monitoring tool is described that prevents mechanical injury to intracerebral vessels during stereotactic surgery. The method, which combines pulse Doppler ultrasonography and fiberendoscopy, allowed stereotactic biopsy to be performed without serious intracerebral bleeding in 25 patients with hypervascular malignant brain tumors, 13 with glioblastoma multiforme, five with anaplastic astrocytoma, five with metastatic tumor, and two with malignant lymphoma. The ultrasound apparatus has a built-in fast-Fourier transformation system analyzer and an improved filtering system that provide real-time measurement of blood flow velocity. The source of flow (arterial or venous) could be identified by both real-time sonography and acoustic signal frequencies. It was possible to measure the size and distance of a vessel by adjusting the Doppler signal gain dial from initially waxing to waning sounds, because the acoustic signal was adjusted to the axial flow of each vessel in 0.1-mm steps. Each of three Doppler probes (1 mm, 2 mm, and 3 mm in diameter) fit through the outer cannula of the biopsy needle. Vessels located within 7 mm from the tip of these probes could be detected easily and rapidly, so the biopsy needle could be advanced safely to the desired target in 7-mm steps. If sonograms revealed blood flow, indicating the presence of larger vessels in the intended stereotactic trajectory, the angle of the needle was changed slightly to avoid vascular injury. Because the fiberendoscope was connected to a video processor, the vessel could be visualized at a higher magnification on the video display, unless there was active bleeding. This technically simple and reliable system enhances operative safety while maintaining accuracy.

Stereotactic Biopsy of Deep Brain Tumors in Infancy and Childhood

1983 ◽  
Vol 10 (2) ◽  
pp. 92-98 ◽  
Author(s):  
G. Broggi ◽  
A. Franzini ◽  
F. Migliavacca ◽  
A. Allegranza
Keyword(s):  
Brain Tumors ◽  
Stereotactic Biopsy ◽  
Infancy And Childhood ◽  
Deep Brain

Optical spectroscopy for stereotactic biopsy of brain tumors

2015 ◽  
Author(s):  
Niklas Markwardt ◽  
Anna von Berg ◽  
Sebastian Fiedler ◽  
Marcus Goetz ◽  
Neda Haj-Hosseini ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Optical Spectroscopy ◽  
Stereotactic Biopsy

Neuropsychological deficits in children with brain tumors at diagnosis: influence of tumor site and tumor-related factors

2005 ◽  
Vol 23 (16_suppl) ◽  
pp. 1571-1571
Author(s):  
L. Iuvone ◽  
L. Peruzzi ◽  
C. Di Rocco ◽  
G. Tamburrini ◽  
M. Caldarelli ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Neuropsychological Deficits ◽  
Tumor Site ◽  
Related Factors

Remission spectrometry for blood vessel detection during stereotactic biopsy of brain tumors

2016 ◽  
Vol 10 (8) ◽  
pp. 1080-1094 ◽  
Author(s):  
Niklas A. Markwardt ◽  
Herbert Stepp ◽  
Gerhard Franz ◽  
Ronald Sroka ◽  
Marcus Goetz ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Blood Vessel ◽  
Stereotactic Biopsy ◽  
Blood Vessel Detection ◽  
Vessel Detection

Stereotactic biopsy for multifocal, diffuse, and deep-seated brain tumors using Leksell’s system

2004 ◽  
Vol 11 (3) ◽  
pp. 263-267 ◽  
Author(s):  
Kazumichi Yamada ◽  
Satoshi Goto ◽  
Masato Kochi ◽  
Yukitaka Ushio
Keyword(s):  
Brain Tumors ◽  
Stereotactic Biopsy

scholarly journals Real‐time presurgical resting‐state fMRI in patients with brain tumors: Quality control and comparison with task‐fMRI and intraoperative mapping

2019 ◽  
Vol 41 (3) ◽  
pp. 797-814 ◽  
Author(s):  
Kishore Vakamudi ◽  
Stefan Posse ◽  
Rex Jung ◽  
Brad Cushnyr ◽  
Muhammad O. Chohan
Keyword(s):  
Quality Control ◽  
Brain Tumors ◽  
Real Time ◽  
Resting State ◽  
Resting State Fmri ◽  
Intraoperative Mapping
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