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  • 1
    Electronic Resource
    Electronic Resource
    Microautoradiography of γ-emitters: Interest of latensification process
    Amsterdam : Elsevier
    The @International Journal Of Applied Radiation And Isotopes 35 (1984), S. 489-493 
    Details
    ISSN: 0020-708X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0020-708X(84)90169-8
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  • 2
    Electronic Resource
    Electronic Resource
    Regional distribution of ventilation-perfusion ratios in acute pulmonary embolism (1984)
    Springer
    Intensive care medicine 10 (1984), S. 103-106 
    Details
    ISSN: 1432-1238
    Keywords: Pulmonary embolism ; Ventilation ; Perfusion ; Krypton 81m
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Regional ventilation perfusion ratios have been computed in 44 patients with acute pulmonary embolism with a gamma-camera using Krypton 81m, a short-life radionuclide delivered by inhalation and infusion. This noninvasive technique is performed during tidal breathing and can be easily repeated. High V/Q's are detected in the embolic regions and low V/Q's in the nonembolic regions with a shift of the perfusion distribution towards these low values. This pattern disappears with recovery. This technique can be used in clinical practice for diagnostic purposes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00297567
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Effect of D-dimer testing on the diagnostic strategy of suspected pulmonary embolism: an observational study of practice patterns and costs (2000)
    Springer
    European radiology 10 (2000), S. S433 
    Details
    ISSN: 1432-1084
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00014119
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Factor analysis of 81mKr lung ventilation studies (1985)
    Springer
    European journal of nuclear medicine 10 (1985), S. 511-518 
    Details
    ISSN: 1619-7089
    Keywords: 81mKr-ventilation ; Factor analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Factor analysis of dynamic structures (FADS) summarizes data depending on time and space in a few elementary components. Each of them associates a time-activity curve (factor) and the spatial distribution of the corresponding events. The aim was to evaluate the patterns, the number of components, and their possible link to physiology when FADS was applied to scintigraphic images representing a composite of a 81mKr ventilation cycle. In a study of 26 patients (10 normal, 16 pathologic), components were found that represent: (1) a rapid and steeply changing ventilation factor, corresponding mainly to bases in normal subjects and whole lung fields in patients, (2) a slower expiration and shorter inspiration ventilation factor distributed throughout both lung fields in all patients, (3) a constant activity curve, with an inspiratory activity peak distributed over both lung fields and the large airways, and (4) a factor including a phase shift with respect to the first; this was found significantly more often in patients with pathology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00252743
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  • 5
    Electronic Resource
    Electronic Resource
    Imaging and assessment of regional clearances of indium-111 labelled circulating immune complexes in humans (1986)
    Springer
    European journal of nuclear medicine 12 (1986), S. 274-276 
    Details
    ISSN: 1619-7089
    Keywords: Reticulo-endothelial system ; Immune complexes ; Indium labelling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The in vivo function of the reticulo-endothelial system in humans is currently studied by the blood clearance of 51Cr labeled RBC sensitized with IgG anti-Rh. By replacing 51Cr by 111In we developed a method which allows imaging and assessment of clearances of circulating immune complexes (CIC) by individual organs. Nine normal subjects were studied successively with 51Cr labelled CIC and 111In-labelled CIC by blood sampling and sequential imaging. Time activity curves were obtained over spleen, liver, heart lungs and kidneys. The blood clearance values were similar with 111In (T 1/2±SD=23.4 min±6.4 min) and 51Cr (T 1/2=22.9 min±5.8 min). The blood clearance derived from the time activity curve obtained over the cardiac area (T 1/2=26.6 min±8.4 min) was not significantly different from that obtained by blood sampling. Most of the CIC were taken up by the spleen with a T 1/2 of 20.3 min±4.1 min. Although hepatic uptake was observed in all subjects, it was lower than that of the spleen and CIC were subsequently released from the liver in five of the nine patients. The spleen/liver ratio increased with time, reaching a plateau averaging 24.0±5.8 within 80 min in all subjects. CIC imaging allows, by a non-invasive procedure, the computation of CIC blood clearance and the estimation of the respective role of spleen and liver in phagocytic function.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00251986
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  • 6
    Electronic Resource
    Electronic Resource
    Automatic construction of pulmonary functional images (1981)
    Springer
    European journal of nuclear medicine 6 (1981), S. 29-32 
    Details
    ISSN: 1619-7089
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Dynamic study of regional ventilation of Xenon-133 with a gamma camera requires the medical interpretation of many analog scintigraphic images and time-consuming curve analysis. We have developed a program for the immediate creation of two functionally digitalized images by minicomputer which collects the data from the whole study. These images are constructed by assigning a value to each point which depends upon the dynamic phenomenon. The program automatically computes the working files of the dynamic acquisition, performs the background subtraction, and delineates the boundaries of the lungs using isoactivity lines. Then the functional images of transit time and clairance of the radioactive gas in the alveoli are reconstructed. This processing takes less than 1 min and allows both time sharing and enhancement of interpretation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00257069
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  • 7
    Electronic Resource
    Electronic Resource
    Myocardial macroaggregate uptake on successive lung perfusion scans (1983)
    Springer
    European journal of nuclear medicine 8 (1983), S. 325-327 
    Details
    ISSN: 1619-7089
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In a patient with an Eisenmenger syndrome and multiple intraventricular communications, myocardial uptake of macroaggregated albumin appeared during a perfusion lung scan. This pattern can be explained by an increase of arterial pulmonary hypertension heightening the proportion of the right-to-left shunt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00253761
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