Abstract. Assessing PET image quality is a challenge due to its clinical subjectivity and difficulties in standardisation. Methods to evaluate PET image quality include image noise and noise equivalent count rate (NECR), which are automatic and objective measurements determined from the reconstructed medical PET image or PET raw emission data from phantoms. Although manufacturers emphasize scanner performance by stating peak NECR, the peak NECR is often outside clinically limited by radiation safety factors, as opposed to scanner performance. instead, image noise in the expectation maximization (EM) algorithm inferred that this could also be true for three algorithm. One consequence is that for traditionally based on NECR, should be based on the true produced by increasing the injected activity to match the peak true count rate for 3D
Abstract. The challenge of installing and starting clinical operations of PET/CT in a hospital requires cooperation from a multidisciplinary team. When not only the PET/CT modality is new to the department, but also the entire hospital facility is new, even greater Østfold Hospital Kalnes in Norway, the decision to install a PET/CT in the nuclear medicine department was made after designing and planning a room for SPECT/CT, which meant during a late phase of construction. Shielding had to be increased in order to accommodate positron annihilation radiation energy. Østfold Hospital Kalnes had the opportunity to choose among three manufa machines, which required evaluation and research by a multidisciplinary team in order to meet the present and future ambitions of the hospital. The staff of the nuclear medicine department worked with clinical SPECT/CT, but nobody had previously worked with PET/CT. Training implementation of a new modality. It was also decided to join the EARL FDG quality assurance program from the European Association of Nuclear Medic increases possibilities for collaboration and research.
Abstract. Clinical studies have shown that it is possible to improve image contrast up to 30% when time of flight (TOF) technology is used compared to non-TOF technology [1]. On the other hand, it has been shown that, combined with the point spread function (PSF) in image quality for overweight patients could study and a change of the dose model based on patient weight. This chan EANM procedure guidelines, either replacing them or combining them with a system based on a body-mass-index (BMI) concept, and thus result in significant dose reductions with stronger patient-based dose optimisation. This will also reduce exposure of the nuclear medicine staff. Bearing in mind that the compromise in clinical practice is either to reduce the time of the scan or to reduce the patient dose, and that this depends mostly on whether a facility has a medical cyclotron or not, this work focuses on the overview of possibilities for potential based on appropriate clinical studies.
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