MR-assisted PET Motion Correction for Neurological Applications
نویسندگان
چکیده
C. Catana, A. van der Kouwe, T. Benner, M. Hamm, B. Guerin, L. Byars, C. Michel, G. El Fakhri, M. Schmand, B. R. Rosen, and A. G. Sorensen MGH, Radiology, A.A. Martinos Center for Biomedical Imaging, Charlestown, MA, United States, Siemens Medical Solutions USA Inc., Charlestown, MA, United States, Nuclear Medicine and Molecular Imaging, Massachusetts General Hospital, Boston, MA, United States, Siemens Medical Solutions USA Inc., Knoxville, TN, United States
منابع مشابه
Advanced Motion Correction Methods in PET
With the arrival of increasingly higher resolution PET systems, small amounts of motion can cause significant blurring in the images, compared to the intrinsic resolutions of the scanners. In this work, we have reviewed advanced correction methods for the three cases of (i) unwanted patient motion, as well as motions due to (ii) cardiac and (iii) respiratory cycles. For the first type of ...
متن کاملReconstruction-Incorporated Respiratory Motion Correction in Clinical Simultaneous PET/MR Imaging for Oncology Applications.
UNLABELLED Simultaneous PET and MR imaging is a promising new technique allowing the fusion of functional (PET) and anatomic/functional (MR) information. In the thoracic-abdominal regions, respiratory motion is a major challenge leading to reduced quantitative and qualitative image accuracy. Correction methodologies include the use of gated frames that lead to low signal-to-noise ratio consider...
متن کاملImproved PET Data Quantification in an Integrated Brain MR-PET Scanner
INTRODUCTION Simultaneous MR-PET data acquisition immediately brings to mind the possibility of improving the performance of one instrument by using the information obtained from the other modality. For example, a number of aspects have to be considered in PET for obtaining a correct quantitative measure of the activity concentration in a specific voxel. First, correcting for photon attenuation...
متن کاملImpact of PET - CT motion correction in minimising the gross tumour volume in non-small cell lung cancer
AbstractObjective: To investigate the impact of respiratory motion on localization, and quantification lung lesions for the Gross Tumour Volume utilizing an in-house developed Auto3Dreg programme and dynamic NURBS-based cardiac-torso digitised phantom (NCAT). Methods: Respiratory motion may result in more than 30% underestimation of the SUV values of lung, liver and kidney tumour lesions. The m...
متن کاملRespiratory motion correction of PET using MR-constrained PET-PET registration
BACKGROUND Respiratory motion in positron emission tomography (PET) is an unavoidable source of error in the measurement of tracer uptake, lesion position and lesion size. The introduction of PET-MR dual modality scanners opens a new avenue for addressing this issue. Motion models offer a way to estimate motion using a reduced number of parameters. This can be beneficial for estimating motion f...
متن کامل