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Reconstruction Parameters for ¹¹¹In-Pentetreotide SPECT: Variability with Respect to Body Weight and Body Region

¹ PET Unit, Nuclear Medicine Service, S. Maria della Misericordia Hospital, Rovigo, Italy; ² Technician and Nursing Service, S. Maria della Misericordia Hospital, Rovigo, Italy; and ³ Medical Physic Service, S. Maria della Misericordia Hospital, Rovigo, Italy

View larger version (47K): [in this window] [in a new window]   FIGURE 1.  SPECT of head in patient with pituitary adenoma. Body weight was 74 kg. (Left) Reconstruction by OSEM iterative method (from top to bottom: axial, sagittal, and coronal views). (Right) Reconstruction by filtered backprojection using Butterworth filter, with cutoff of 0.35 and order of 8.

View larger version (81K): [in this window] [in a new window]   FIGURE 2.  SPECT of chest in patient with typical bronchial carcinoid. Body weight was 68 kg. (Left) Reconstruction by OSEM iterative method (from top to bottom: axial, sagittal, and coronal views). (Right) Reconstruction by filtered backprojection using Butterworth filter, with cutoff of 0.40 and order of 9.

View larger version (82K): [in this window] [in a new window]   FIGURE 3.  SPECT of abdomen in patient with ileal VIPoma (left periumbilical region). Body weight was 72 kg. (Left) Reconstruction by OSEM iterative method (from top to bottom: axial, sagittal, and coronal views). (Right) Reconstruction by filtered backprojection using Butterworth filter, with cutoff of 0.65 and order of 9.