Practical impact of partial-volume correction PVE correction can also reveal relationships that remain hidden without correction. 参考文献: [1] M. Soret, S. L. Bacharach, and I. Buvat, “Partial-Volume Effect in PET Tumor Imaging,” J. Nucl. Med., vol. 48, no. 6, pp. 932–945, 200...
Such a correction procedure is known as "partial volume correction" (PVC). Since the PVE depends on the spatial resolution of the PET images, some degree of compensation can be obtained using resolution recovery or deconvolution algorithms. However, these algorithms should not be considered as PVC...
An analytical relationship between the lesion size (obtained from CT) and the amount of correction needed to recover the true AC based on the multiple acquisitions was generated. Conclusions: To determine the true AC of a lesion from a PET/CT scan, the corrected average is more accurate than...
Evaluation of partial volume correction for FDG PET and perfusion SPECT dataGrova, CAubertBroche, BReilhac, AGibaud, BGrova C, Aubert-Broche B, Reilhac A, Gibaud B (2004) Evalu- ation of partial volume correction for FDG PET and perfusion SPECT data. In: IEEE Nuclear Science Symposium and...
foster the use of PVE-correction in brain PET for more widespread use. The toolbox is freely available at http://.fil.ion.ucl.ac.uk/spm/ext/#PETPVE12. Keywords: Alzheimer’s disease, amyloid imaging, PET, MRI, Partial Volume Effects correction 1. Introduction Positron Emission Tomo...
In part, this may be because of a lack of correction for the dilution effect of age-related cerebral volume loss on PET measurements.CBF PET scans were obtained using [15O]H2O in 27 healthy individuals (age range, 19-76 y) and corrected for partial-volume effects from cerebral atrophy ...
摘要: Partial volume effect in positron emission tomography (PET) can cause incorrect quantification of radiopharmaceutical uptake in functional imaging. A PET partial volume correction method is presented to attenuate partial volume blurring and to yield voxel-based corrected PET images....
Conclusion: A-MAP is a promising technique for voxel-based partial volume correction of FDG-PET of the human brain. Introduction Positron emission tomography (PET) of the cerebral glucose metabolism, reflected by the uptake of radioactive labeled 2-[18F]fluoro-2-deoxy-d-glucose (FDG), has ...
The purpose of the present study was to assess accuracy and precision of different partial volume correction (PVC) methods. Methods Three methods for PVC were evaluated: (1) inclusion of the point spread function (PSF) within the reconstruction, (2) iterative deconvolution of PET images and (3...
we present an implementation of well validated PVE-correctionprocedures as a SPM toolbox, PETPVE12, for automated processing. We demonstrate its utility by acomprehensive analysis of the ef f ects of PVE-correction on amyloid-sensitive AV45-PET data from 85 patientswith Alzheimer's disease (AD...