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2009 JUL 28 ... in Taipei, Taiwan report. "An asymmetric energy window was used for dual, and symmetric energy windows were used for single-isotope imaging. Oral fluoxetine (20 ... using [I-123]ADAM and [Tc-99m]TRODAT-1 single photon emission computed tomography (SPECT). Simultaneous [I-123]ADAM (185 MBq) and [Tc-99m]TRODAT-1 (740 MBq) SPECT was performed ...
2009 JUN 23 ... SPECT using micro-CT information. Pinhole SPECT scans were performed using a clinical dual-head gamma camera," scientists in Brussels, Belgium report.
"Each ... was based on micro-CT information. Scatter correction was based on dual and triple-energy window methods. Phantom and animal experiments were performed. A phantom containing nine ...
2009 MAR 16 ... of a water-filled torso phantom, and they generated synthetic projections of various dual-radionuclide activity distributions. Images of different combinations of myocardium ... for estimation tasks to that of two other methods: standard OSEM using photopeak energy windows without scatter correction (NSC-OSEM) and standard OSEM using a Compton-scatter ... study from the United States, "Simultaneous rest Tc-99m-Sestamibi/I-123-BMIPP cardiac SPECT imaging has the potential to replace current clinical Tc-99m-Sestamibi rest/stress ...
2007 OCT 16 ... components behind the crystal, were modeled. We reconstructed images from simultaneous dual-radionuclide projections in three ways. First, we reconstructed the ... is difficult, however, because their energies are close."
"Most energy-window-based scatter correction methods do not fully model either physical factors or ... in "Fast Monte Carlo based joint iterative reconstruction for simultaneous 99mtc/ 123I SPECT imaging," new data in algorithms. According to recent research published in the journal ...
2008 SEP 15 ... performed 15 min after an intravenous injection of 555-740 MBq of 99mTc-MIBI under the dual head gamma-camera (E Cam, Siemens, Erlangen, Germany) using the low-energy, ... Scientists discuss in 'Diagnostic accuracy of 99mTc-MIBI-SPECT in the detection of lymph node metastases in patients with carcinoma of the tongue: ...
2007 DEC 10 ... with malignant gliomas. Over a period of 24 h, serial SPECT scans were performed on a dual-head SPECT camera. The scans were acquired in a double-energy window technique together ...
2007 NOV 14 ... components behind the crystal, were modeled. We reconstructed images from simultaneous dual-radionuclide projections in three ways. First, we reconstructed the ... energies are close," investigators in the United States report.
"Most energy-window-based scatter correction methods do not fully model either physical factors or ... "Simultaneous (99m)-Tc/(123) 1211 SPECT allows the assessment of two physiological functions under identical conditions. The ...
2007 JUL 31 ... patient-like distribution including SP now takes less than 5 s per projection angle on a dual processor PC," wrote S. Staelens and colleagues, University Medical Center, Department ... forced detection (CFD) is extended towards a wide range of medium and high energy isotopes measured using various collimators."
"To this end, a fast ... Researchers detail in "Fast hybrid SPECT simulation including efficient septal penetration modelling (SP-PSF)," new data in life ...
2007 OCT 2 ... components behind the crystal, were modeled. We reconstructed images from simultaneous dual-radionuclide projections in three ways. First, we reconstructed the ... is difficult, however, because their energies are close."
"Most energy-window-based scatter correction methods do not fully model either physical factors or ... in "Fast Monte Carlo based joint iterative reconstruction for simultaneous 99mtc/ 123I SPECT imaging," new data in algorithms. According to recent research published in the journal ...
2007 JUN 11 ... times. PROSTASCINT studies were obtained on twelve consecutive patients using a dual-head Philips SKYLight camera. Images were processed using filtered back projection ... acquisition techniques and reconstruction algorithms, including concurrent imaging, energy independent detector design and Astonish 3-D reconstruction. This patented imaging ... with functional information obtained using single-photon emission computed tomography (SPECT) and novel molecular imaging agents, such as PROSTASCINT. SPECT imaging focuses on ...
2007 NOV 14 ... with malignant gliomas. Over a period of 24 h, serial SPECT scans were performed on a dual-head SPECT camera. The scans were acquired in a double-energy window technique together ...
2008 SEP 29 ... performed 15 min after an intravenous injection of 555-740 MBq of Tc-99m-MIBI under the dual head gamma-camera (E Cam, Siemens, Erlangen, Germany) using the low-energy, ... and Tc-99m-methoxyisobutylisonitrile-single photon emission computed tomography (MIBI-SPECT) for the detection of lymph node (LN) metastases in clinically neck-negative patients ...
2008 JUN 3 ... by Tl-200 and Tl-202 each. In addition, measurements of a thorax phantom on a dual-headed gamma camera were performed. The product used was contaminated by 0.17% of Tl-200 ... impact may be significant because of much higher gamma camera sensitivity for these high-energy photon emissions. Therefore, we investigate the effects of the contaminants in terms of ... " Thallous (Tl-201) chloride is a single-photon emission computed tomography (SPECT) tracer mainly used for assessing perfusion and viability of myocardial tissue. Tl-201 ...
2007 OCT 23 ... new data in the report 'Model-based crosstalk compensation for simultaneous 99mTc/123I dual-isotope brain SPECT imaging.' According to a study from the United States, "'In this ... response, including the penetration and scatter components due to high-energy 123I photons, are modeled using precalculated tables of Monte Carlo simulated ...
2007 JUN 18 ... have been published. According to recent research from the United States, "A dual modality computed mammotomography (CmT) and single photon emission computed tomography ... imaging is in development. Using heavy K-edge filtration, the CmT component narrows the energy spectrum of the cone-shaped x-ray beam incident on the patient's pendant, uncompressed ... modality computed mammotomography (CmT) and single photon emission computed tomography (SPECT) system for dedicated 3D breast imaging is in development. Using heavy K-edge ...
2007 DEC 18 ... Tc-99m(V)-DMSA, using low-energy, high-resolution, parallel-hole collimators with dual-head detectors. All SPECT data were reconstructed on conventional axial, sagittal and ...
2007 OCT 30 ... MBq 99mTc(V)-DMSA, using low-energy, high-resolution, parallel-hole collimators with dual-head detectors. All SPECT data were reconstructed on conventional axial, sagittal and ...
2008 DEC 8 ... the feasibility of diagnosing coronary stenosis and myocardial ischemia with a single dual-energy CT (DECT) acquisition. Thirty-five patients underwent contrast-enhanced, ... studies for stenosis and myocardial blood-pool deficits. Results were correlated with SPECT, coronary catheterization and cCTA on a segmental basis. cCTA had 98% sensitivity, 88% ...
