The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Quantification of positron emission tomography (PET) images using compartmental models requires the estimation of the tracer concentration in plasma as a function of time. Estimating this function directly from PET images, by measuring the tracer concentration on the carotid arteries, is an attractive alternative to the invasive gold-standard method of arterial cannulation of the radial artery. Nevertheless,...
Many methods have been proposed for generating an image-derived input function (IDIF) exclusively from PET images. The purpose of this study was to assess the viability of a multimodality approach utilizing registered MR images. 3T-MR and HRRT-PET data were acquired from human subjects. Segmentation of both the left and right carotid arteries was performed in MR images using a 3D level sets method...
Purpose To assess the robustness of a previously introduced method to obtain accurate image-derived input functions (IDIF) for three other tracers. Methods Dynamic PET and online blood data of five repeat [11C]PIB (Pittsburgh Compound-B) ([11C]PIB), six repeat (R)-[11C]verapamil, and ten single (R)-[11C]PK11195 studies were used. IDIFs were extracted from partial volume corrected scans using the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.