Patch-based generation of a pseudo CT from conventional MRI sequences for MRI-only radiotherapy of the brain
نویسندگان
چکیده
منابع مشابه
Patch-based generation of a pseudo CT from conventional MRI sequences for MRI-only radiotherapy of the brain.
PURPOSE In radiotherapy (RT) based on magnetic resonance imaging (MRI) as the only modality, the information on electron density must be derived from the MRI scan by creating a so-called pseudo computed tomography (pCT). This is a nontrivial task, since the voxel-intensities in an MRI scan are not uniquely related to electron density. To solve the task, voxel-based or atlas-based models have ty...
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INSERM UMR 1101, LaTIM, Brest, France Current MR attenuation correction (AC) approaches suffer from the lack of precision in the detection of bone and the assigned attenuation coefficients. In general, no unique transformation of MR image intensities into attenuation coefficients exists. The purpose of this work is to derive attenuation coefficient maps from a single MR sequence through the gen...
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ژورنال
عنوان ژورنال: Medical Physics
سال: 2015
ISSN: 0094-2405
DOI: 10.1118/1.4914158