Abstract: A method for non-invasive quantitative measurement of cerebrovascular reserve (CVR) and cerebral blood flow (CBF) with 15O-water positron emission tomography (PET) in a human.

Abstract: A system for safe radioisotope preparation and injection of H215O for use in Positron Emission Tomography (PET). The invention also relates to a safety valve for controlling a flow of H215O for use in PET, to a use of said safety valve and to a method for preparing and injecting H215O.

Abstract: A method for safe radioisotope preparation and injection of H215O for use in Positron Emission Tomography (PET). The disclosure also relates to a safety valve for controlling a flow of H215O for use in PET, to a use of said safety valve and to a method for preparing and injecting H215O.

Abstract: A system for safe radioisotope preparation and injection of H215O for use in Positron Emission Tomography (PET). The disclosure also relates to a safety valve for controlling a flow of H215O for use in PET, to a use of said safety valve and to a method for preparing and injecting H215O.

Abstract: A non-surgical method of delivering a liquid radioactive solution from a source to a recipient comprising the steps of: determining a desired recipient level of radioactivity and recipient volume of the radioactive solution to be delivered to the recipient, providing a first valve having a waste position and a recipient position, providing a bolus conduit, a waste conduit and a recipient conduit, each conduit having a valve end being connected to said first valve, so that the first valve can establish a waste flow path in the waste position and a recipient flow path in the recipient position, the recipient flow path being different from said waste flow path, the bolus conduit comprising a measuring section and an internal volume, the internal volume being approximately equal to the desired recipient volume of the radioactive solution to be delivered to the recipient, arranging said first valve in the waste position, transporting a first amount of said radioactive solution through said waste flow path, the fir

Abstract: The present invention relates to the use of radiopharmaceuticals having a radioactive half-life of less than 21 minutes, such as oxygen-15 labeled water (H215O) in blood flow imaging using PET (Positron emission tomography) scanning technology. The invention also relates to the use of a system for preparing and injecting boluses of such radiopharmaceuticals.

Abstract: The present invention relates to the use of radiopharmaceuticals having a radioactive half-life of less than 21 minutes, such as oxygen-15 labeled water (H215O) in blood flow imaging using PET (Positron emission tomography) scanning technology. The invention also relates to the use of a system for preparing and injecting boluses of such radiopharmaceuticals.

Abstract: A method for safe radioisotope preparation and injection of H215O for use in Positron Emission Tomography (PET). The disclosure also relates to a safety valve for controlling a flow of H215O for use in PET, to a use of said safety valve and to a method for preparing and injecting H215O.

Abstract: A system for safe radioisotope preparation and injection of H215O for use in Positron Emission Tomography (PET). The disclosure also relates to a safety valve for controlling a flow of H215O for use in PET, to a use of said safety valve and to a method for preparing and injecting H215O.

Abstract: A method and a system for modelling a human heart based on a plurality of emission tomography images representing concentrations of a tracer that has been injected at a specific time is presented. The method comprising: extracting time activity curves of a tracer that has been injected for a plurality of pixels and/or voxels; identifying first-pass peaks of the time activity curves corresponding to an arrival time of the injected tracer at the corresponding pixel/voxel; defining a model comprising at least two portions of the heart; and arranging the at least two portions in relation to each other by comparing the arrival times of the first-pass peaks. The method and model may be used to obtain an estimate of the volume of the left or right atrium of the human heart.