Brain Computed Tomography Angiography Maximum Intensity Projection Images for ASPECTS Derivation and Detection of Large Infarct Volumes: Preliminary Study

2021 ◽  
Vol 30 (3) ◽  
pp. 105548
Author(s):  
Yu-Ming Chang ◽  
Mary Tenenbaum ◽  
Yunyun Xiong ◽  
Magdy Selim ◽  
Rafeeque Bhadelia ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Computed Tomography Angiography ◽  
Maximum Intensity Projection ◽  
Maximum Intensity ◽  
Brain Computed Tomography ◽  
Projection Images ◽  
Preliminary Study ◽  
Large Infarct

Bone-free 3D Computed Tomography Angiography Using an Image-processing Application - Imaging Efficacy for Aneurysms Near the Skull Base and Clipped Cerebral Aneurysms

2010 ◽  
Vol 5 (1) ◽  
pp. 103
Author(s):  
Noriaki Tomura ◽  
Makoto Koga ◽  
Takahiro Otani ◽  
Toshiaki Nishii ◽  
Satoshi Takahashi ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Skull Base ◽  
Computed Tomography Angiography ◽  
Cerebral Aneurysms ◽  
Maximum Intensity Projection ◽  
Maximum Intensity ◽  
Post Processing ◽  
Processing Application ◽  
3D Computed Tomography ◽  
Image Processing Application

Bone-free 3D computed tomography angiography (CTA) can be carried out to image cerebral aneurysms near the skull base when the elimination of bones is surgically required. The maximum intensity projection (MIP) images were initially obtained using the application. Further post-processing was performed to obtain the MIP and volume-rendering (VR) images. This technique did not increase radiation exposure to patients, and remnant bones in the initial MIP images automatically acquired by the application for bone elimination could be easily removed through post-processing. Although parts of vessels were sometimes removed from the image along with the bones, these could be quickly and easily recovered through post-processing. Thus, bone-free 3D CTA and conventional 3D CTA are complementary tools for imaging cerebral aneurysms near the skull base prior to surgery. This application could also eliminate clips in cases of clipped cerebral aneurysms, and it could improve the accuracy of detecting remnant necks after clipping surgery.

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