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  • Remote expert consultation  (1)
  • Tissue oxygen pressure  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Right ventricular tissue PO2 in dogs (1987)
    Springer
    Research in experimental medicine 187 (1987), S. 159-174 
    Details
    ISSN: 1433-8580
    Keywords: Right ventricle ; Tissue oxygen pressure ; Hemodilution ; RCA occlusion ; Dogs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Right ventricular (RV) epicardial tissue oxygen pressure (PtO2) was measured polarographically by means of a platinum multiwire surface electrode on the in situ beating heart of ten anesthetized dogs prior to and after moderate (Hct 28%) normovolemic hemodilution (HD) with dextran 60. In five dogs the effect of acute occlusion of the right coronary artery (RCA) on PtO2 was analyzed. The PtO2 histograms at baseline revealed a bell-shaped configuration and a mean PtO2 of 46.2 ± 7.1 mm Hg which coincides with the PtO2 on the left ventricle (LV) reported by others. After HD mean PtO2 increased to 51.4 ± 8.5 mm Hg (P = 0.02) without alterations of the histogram's configuration. Hemodynamics and blood gas analyses were unchanged after HD. RCA ligature was followed by non-uniform changes in the PtO2 pattern. Thus, despite marked differences in external work and O2 consumption, the PtO2 in both RV and LV myocardium are similar at rest. The increase of PtO2 in the RV at reduced Hct values, which is not seen in the LV myocardium, can be related to differences in functional capillary density between both ventricles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01852080
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Diagnostic accuracy in remote expert consultation using standard video-conference technology (1996)
    Springer
    European radiology 6 (1996), S. 932-938 
    Details
    ISSN: 1432-1084
    Keywords: Teleradiology ; Telemedicine ; Video conference technology ; Remote expert consultation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract An international multicenter study (Germany Sweden, and Switzerland) was performed to investigate the feasibility and diagnostic of standard video-conferencing (VC) technology for remote expert consultation in radiology. Three high spatial resolution films (hand-bone, mammography, chest) and two low-spatial-resolution image sets (liver CT and MR1) were studied (total 446 images taken from different examinations). The images were recordedby a video camera transmitted via public broadband networks, and displayed on a video monitor. The resolution of the recorded images varied from 24 lp mm to 4.8 lp/mm at maximum zoom. Alter 3–4 months, the images were reexamined using conventional light-box reading. Diagnostic reliability was evaluated by receiver operating characteristics (ROC) analysis. With video conferencing, there was a noticeable loss of diagnostic accuracy for the high-spatial-resolution films, whereas for liver CT and liver MRIimages VC reading seemed to be satisfactory (average area value difference 〈 0.02)
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00240711
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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