Spect reconstruction
WebDec 23, 2024 · Iterative reconstruction 1, such as ordered-subset expectation maximization (OSEM) 2, is an indispensable technology in single-photon emission computed … WebReconstruction Parameters for 111In-Pentetreotide SPECT: Variability with Respect to Body Weight and Body Region Arianna Massaro1, Silvia Cittadin1, Francesca Rossi2, Lucia …
Spect reconstruction
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WebMay 1, 2024 · For the top row, the SPECT was reconstructed with the xSPECT Bone algorithm (Siemens Healthineers, Erlangen, Germany), which uses information from CT to refine the SPECT Reconstruction. By this, a significantly improved localization of bone boundaries could be achieved. WebOct 3, 2024 · Single-photon emission computed tomography (SPECT) is a nuclear imaging modality used frequently in diagnostic medicine. It allows the clinician to assess the perfusion and functionality of specific tissues. …
WebThe present study is to develop a deep learning technique for SPECT image reconstruction that directly converts raw projection data to image with high resolution and low noise, while an efficient training method specifically applicable to … WebJul 30, 2024 · The reconstruction algorithm performed corrections for resolution recovery (by using a collimator- and nuclide-specific 3D-point spread function), attenuation and scatter. The dual-energy window method was used for scatter correction [ 10 ]. SPECT data were reconstructed in general without postfiltering.
WebThe application of absolute quantification in SPECT/CT has seen increased interest in the context of radionuclide therapies where patient-specific dosimetry is a requirement within the European Union (EU) legislation. However, the translation of this technique to diagnostic nuclear medicine outside this setting is rather slow. Clinical research has, in some … WebApr 14, 2024 · Hajianfar et al. used MPI-SPECT with different reconstruction parameters to study the impact of ComBat harmonization on radiomics features. According to the Kruskal-Wallis test, 11, 10, 0, 21, and 1 features before ComBat harmonization had significant differences over the reconstruction method, filter, order, cutoff, and iteration subset ...
WebSPECTRA Quant ®. SPECTRA Quant enables the conversion of counts to activity (Bq/ml and SUV) through a vendor-neutral SPECT reconstruction method, including iterative …
WebWith SPECT, the gamma camera (either single- or multi-head camera) moves around, viewing the patient from at least 180 degrees. For musculoskeletal imaging, 360 degrees of rotation is required for accurate image reconstruction; 180 degrees of rotation is usually used for cardiac imaging. patricia o\u0027sullivan obituaryWebApr 12, 2024 · SPECT data set reconstruction parameters as well as CT acquisition and reconstruction parameters were the same as for the 4–6 h images. Almost all men also had a separate diagnostic CT Chest, abdomen, and pelvis. This was undertaken using a 160 slice 0.5 mm detector (Canon Aquilion PRIME), 1 mm and 5 mm axial and 5 mm coronal … patricia ouditWebMar 21, 2024 · Statistical SPECT reconstruction can be very time-consuming especially when compensations for collimator and detector response, attenuation, and scatter ar … patricia o\u0027neill-brownWebSingle photon emission computed tomography (SPECT) imaging is widely implemented in nuclear medicine as its clinical role in the diagnosis and management of several diseases is, many times, very helpful (e.g., myocardium perfusion imaging). The quality of SPECT images are degraded by several factors … Filtering in SPECT Image Reconstruction patricia o\u0027neill brooklynWebIterative methods (IR) - Is an alternative process to SPECT reconstruction that continues to gain popularity in Nuclear Medicine and has advantages over the more common … patricia o\u0027rourke san antonioWebJun 9, 2024 · In SPECT/CT and PET/CT scanners, attenuation maps (μ-maps) derived from CT scans are incorporated into iterative reconstruction to generate AC images. 7,11,12,13,14 However, stand-alone SPECT-only scanners still dominate over 80% of the market share. 15 For the newly-developed dedicated cardiac SPECT scanners, all the Spectrum Dynamics … patricia ouding mi obituaryWebVendor-Neutral SPECT Reconstruction. SPECTRA Recon ®, a complement to SPECTRA Quant, allows for the reconstruction of a wide range of SPECT/CT cameras and radiopharmaceuticals. Now, SPECT reconstructions can be completed using one software, regardless of camera manufacturer, to allow for more consistent results. patricia oulton