共查询到4条相似文献,搜索用时 0 毫秒
1.
Residual radioactivity within decay tanks in an in-hospital clinical nuclear medicine unit reflects the specific typology of the concerned unit. To learn how to improve management of emptying the tanks, measures of residual radioactivity over the year 2009 have been compared to prevailing legal norms in Luxembourg. Legal norms have in no case been outpassed. A minimal residual radioactivity, below legal thresholds, has been often found (84%). It concerned 131I, 99mTc and 111In. This is why management of radioactive decay tanks may be continued unchanged. 相似文献
2.
To face the challenges of the “99Mo crisis” on a nuclear medicine department level, strategies were implemented to maintain numbers of scintigraphies as usual. We evaluated the efficiency of the measures. Using 99mTc more rationally led to more profitable generator utilization. As long as the amount of 99mTc at disposal (> 110%, 90–110% (= standard), 70–90%, 50–70%, 30–50% and < 30%) was greater than 30% of the standard, weekly numbers of 99mTc-based investigations remained at “standard” level. Cost per mCi of administered 99mTc remained unchanged. The successfully managed “99Mo crisis” was based upon a rigorous organization as well as goodwill of all implicated staff, at the cost however of a lesser patient service. Punctual flexibility of staff members, adapted to the fluctuating work load, allowed global balance between numbers of required and delivered working hours. As efficient crisis management is tedious, generalization of the model cannot be thought of. To guarantee secure future availability of 99mTc, projects for new nuclear reactors dedicated to producing 99Mo are first choice. 相似文献
3.
F. Kallel F. Hamza S. Charfeddine W. Amouri K. Chtourou F. Guermazi 《Médecine Nucléaire》2011,35(10):507-516
The aim of our study was to assess the contribution of image fusion of SPECT combined with computed tomography (SPECT-CT) or magnetic resonance imaging (SPECT-MRI) in our daily practice of bone scintigraphy. Seventeen patients underwent a SPECT image fusion, SPECT-CT or MRI in addition to conventional bone scintigraphy. These acquisitions are made separately with images stored in DICOM format. The fusion was operated after a manual coregistration of the images. Results show that in 35.29% of cases, the image fusion allowed to pinpoint the exact location of increased uptake seen on the whole body scan and/or on static images. In 35.29% of cases, the fusion has confirmed a diagnosis doubtful in planar imaging. In five patients, representing 29.41% of cases, the fusion has corrected a diagnosis. In one patient (5.88% of cases), the fusion has eliminated a false positive related to increased uptake visualized on the whole body scan. In two patients (11.11% of cases), the fusion has eliminated false negative of bone scan in one case and of MRI in the other case. Finally, in nine patients (50% of cases), the fusion has influenced the therapeutic management. 相似文献
4.
A. Pallardy P. Soubeyran C. Bodet-Milin H. Maisonneuve S. Le Gouill C. Rousseau A. Faivre-Chauvet A.-L. Cazeau E. Garin J.-L. Baulieu A. Brion J.-P. Vuillez T. Lamy D.-M. Goldenberg F. Kraeber-Bodéré 《Médecine Nucléaire》2011,35(9):478-486