Comparison of CT and MRI, with and without Contrast Enhancement, in the Detection of Brain Tumors

1988 ◽  
pp. 147-151
Author(s):  
B. Schulz ◽  
A. Kern ◽  
M. Laniado ◽  
W. Schörner ◽  
J. Iglesias-Rozas ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Contrast Enhancement ◽  
Ct And Mri

Imaging-based stereotaxic serial biopsies in untreated intracranial glial neoplasms

1987 ◽  
Vol 66 (6) ◽  
pp. 865-874 ◽  
Author(s):  
Patrick J. Kelly ◽  
Catherine Daumas-Duport ◽  
David B. Kispert ◽  
Bruce A. Kall ◽  
Bernd W. Scheithauer ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Contrast Enhancement ◽  
Tumor Tissue ◽  
Magnetic Resonance Images ◽  
Low Grade ◽  
Content Type ◽  
Mri Scans ◽  
Isolated Tumor Cell ◽  
Magnetic Resonance Imaging Mri ◽  
Ct And Mri

✓ Forty patients with previously untreated intracranial glial neoplasms underwent stereotaxic serial biopsies assisted by computerized tomography (CT) and magnetic resonance imaging (MRI). Tumor volumes defined by computer reconstruction of contrast enhancement and low-attenuation boundaries on CT and T1 and T2 prolongation on MRI revealed that tumor volumes defined by T2-weighted MRI scans were larger than those defined by low-attenuation or contrast enhancement on CT scans. Histological analysis of 195 biopsy specimens obtained from various locations within the volumes defined by CT and MRI revealed that: 1) contrast enhancement most often corresponded to tumor tissue without intervening parenchyma; 2) hypodensity corresponded to parenchyma infiltrated by isolated tumor cells or in some instances to tumor tissue in low-grade gliomas or to simple edema; and 3) isolated tumor cell infiltration extended at least as far as T2 prolongation on magnetic resonance images. This information may be useful in planning surgical procedures and radiation therapy in patients with intracranial glial neoplasms.

Dynamic imaging of contrast enhancement in brain tumors

1991 ◽  
Vol 19 (2) ◽  
pp. 293-298 ◽  
Author(s):  
P. R. Bullock ◽  
P. Mansfield ◽  
P. Gowland ◽  
B. S. Worthington ◽  
J. L. Firth
Keyword(s):  
Brain Tumors ◽  
Contrast Enhancement ◽  
Dynamic Imaging

scholarly journals Brain Tumor Segmentation with Multi-Path U-Net with Residual Extended Skip Connections

2021 ◽  
Author(s):  
Batuhan Sözer ◽  
Alperen Sözer ◽  
Mustafa Çağlar Şahin ◽  
Kerem Nernekli ◽  
Şule Eylem Erdoğan ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Diagnostic Techniques ◽  
Path Model ◽  
Tumor Segmentation ◽  
Dice Similarity Coefficient ◽  
Brain Tumor Segmentation ◽  
Proposed Model ◽  
The Brain ◽  
Ct And Mri ◽  
Segmentation Models

<p>Early diagnosis of brain tumors is extremely important, and shortening the interval between the acquisition of MRI images and reporting of the results is critical for patients. In the diagnosis of brain tumors, CT and MRI are some of the core diagnostic techniques used today. Our main goal is to reduce the workload of radiologists by developing a neural network that segments MRI images of the brain so we propose a multi-path segmentation algorithm based on U-Net architecture that uses residual extended skip blocks. Our proposed model is trained and tested with Gazi Brains 2020 Dataset. We evaluated the results using the dice similarity coefficient and compared the results with other segmentation algorithms and saw that our proposed model has comparatively better results. Our proposed model is using T1-Weighted, T2-Weighted, and Flair MRI images together as inputs, whereas other segmentation models, are using T2-Weighted or Flair MRI images as input. Implementation of the model and trained models are available at </p> <p><b>https://github.com/batuhansozer/brain-segmentation-with-novel-multi-path-model</b></p>

scholarly journals Intraoperative power Doppler ultrasonography with contrast enhancement for brain tumors

Neurosonology ◽  
2008 ◽  
Vol 21 (1) ◽  
pp. 6-11
Author(s):  
Tetsuhiro HIGASHIDA ◽  
Hiroshi KANNO ◽  
Katsumi SAKATA ◽  
Yutaka TANABE ◽  
Hidetoshi MURATA ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Contrast Enhancement ◽  
Doppler Ultrasonography ◽  
Power Doppler ◽  
Power Doppler Ultrasonography

WHAT IS THE SIGNIFICANCE OF LACK OF MRI CONTRAST ENHANCEMENT OF SUPRATENTORIAL BRAIN TUMORS IN ADULTS? HISTOPATHOLOGICAL EVALUATION OF A SERIES

1996 ◽  
Vol 55 (5) ◽  
pp. 639
Author(s):  
Gregory N. Fuller ◽  
Lawrence E. Ginsberg ◽  
Donald F. Schomer ◽  
Masood Hashmi ◽  
Ashok J. Kumar ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Contrast Enhancement ◽  
Mri Contrast ◽  
Histopathological Evaluation ◽  
Supratentorial Brain Tumors

scholarly journals Follow-Up of Cryoablated Renal Cell Carcinoma with Residual Contrast Enhancement on CT and MRI

2012 ◽  
Vol 67 (5) ◽  
pp. 387
Author(s):  
Eun Kyung Park ◽  
Deuk Jae Sung ◽  
Beom Jin Park ◽  
Min Ju Kim ◽  
Na Yeon Han ◽  
...  
Keyword(s):  
Renal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Contrast Enhancement ◽  
Renal Cell ◽  
Ct And Mri

Metastasis to the Pancreas: Characterization by Morphology and Contrast Enhancement Features on CT and MRI

Pancreatology ◽  
2008 ◽  
Vol 8 (2) ◽  
pp. 199-203 ◽  
Author(s):  
Moritz Palmowski ◽  
Nicola Hacke ◽  
Stefanie Satzl ◽  
Miriam Klauss ◽  
Moritz N. Wente ◽  
...  
Keyword(s):  
Contrast Enhancement ◽  
Ct And Mri
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