Expectation maximization and total variation-based model for computed tomography reconstruction from undersampled data

2011 ◽  
Author(s):  
Ming Yan ◽  
Luminita A. Vese
Keyword(s):  
Computed Tomography ◽  
Total Variation ◽  
Expectation Maximization ◽  
Tomography Reconstruction ◽  
Computed Tomography Reconstruction ◽  
Undersampled Data

scholarly journals Aneurysm Arising at the Origin of a Duplicated Middle Cerebral Artery

2021 ◽  
pp. 446-450
Author(s):  
Jean Roch Alliez ◽  
Luis Manera
Keyword(s):  
Computed Tomography ◽  
Subarachnoid Haemorrhage ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
World Federation ◽  
Treatment Procedure ◽  
3D Computed Tomography ◽  
Ruptured Aneurysms ◽  
Tomography Reconstruction ◽  
Computed Tomography Reconstruction

A duplicated middle cerebral artery (DMCA) is a common anomaly. However, aneurysms arising from the origin of a DMCA are extremely rare. A 22-year-old female was admitted to our hospital with a World Federation of Neurosurgical Societies grade 2 subarachnoid haemorrhage. Four-vessel angiography revealed a DMCA and an aneurysm arising from the origin of this artery. The aneurysm was successfully treated by embolization, and the patient was discharged 2 weeks later. Ruptured aneurysms arising from the origin of a DMCA can be successfully treated by embolization. These aneurysms are small and 3D-computed tomography reconstruction is mandatory to detect them. It is important to preserve the DMCA during the treatment procedure.

scholarly journals Temporal sparsity exploiting nonlocal regularization for 4D computed tomography reconstruction

2016 ◽  
Vol 24 (2) ◽  
pp. 207-219 ◽  
Author(s):  
Daniil Kazantsev ◽  
Enyu Guo ◽  
Anders Kaestner ◽  
William R. B. Lionheart ◽  
Julian Bent ◽  
...  
Keyword(s):  
Computed Tomography ◽  
4D Computed Tomography ◽  
Tomography Reconstruction ◽  
Computed Tomography Reconstruction ◽  
Nonlocal Regularization
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