Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Articles: DFG German National Licenses  (3)
  • Aneurysm  (1)
  • Crohn’s disease  (1)
  • Fluoroscopy  (1)
Source
  • Articles: DFG German National Licenses  (3)
Material
Years
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Radiation exposure resulting from digital voiding cystourethrography in children. How much is due to fluoroscopy? (1997)
    Springer
    Der Urologe 36 (1997), S. 181-185 
    Details
    ISSN: 1433-0563
    Keywords: Schlüsselwörter Flächendosisprodukt ; Dosimetrie ; Durchleuchtung ; Radiographie ; Miktionszysturethrographie ; Key words Dose-area product ; Dosimetry ; Fluoroscopy ; Radiography ; Voiding cystourethrography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Objective: Determination of the proportion of the dose-area product caused by fluoroscopy at voiding cystourethrography in children, using digital image intensifier technology. Patients and methods: Using computer-assisted dosimetry, we determined the dose-area product and the respective proportions of the dose-area product caused by fluoroscopy and radiography as well as the number of radiographs taken at a given examination of 40 children (8 children less than 2 years old, 15 children between 2 and 6 years old and 17 children between 6 and 15 years old). Results: The computer software program correctly differentiated between fluoroscopy and radiography in 80 % of cases. Incorrect results were primarily observed in newborns and young children. The total radiation dose ranged in relation to patient age from 22 to 651 cGy × cm2. Fluoroscopy was responsible for an average 78 % of the applied radiation dose. Conclusion: Computer-assisted dosimetry is useful in determining the proportion of the dose-area product caused by fluoroscopy in older children undergoing voiding cystourethrography. When image intensifier technology is used, this accounts for more than 75 % of the total radiation dose. The method is not suitable for use in small children.
    Notes: Zusammenfassung Ziel: Bestimmung des Anteils der Durchleuchtung am Gesamtflächendosisprodukt beim Kindermiktionszysturethrogramm in digitaler Bildverstärkertechnik. Material und Methode: Bei 40 Kindern (8 Kinder 〈 2 Jahre, 15 Kinder zwischen 2 und 6 Jahren und 17 Kinder zwischen 6 und 15 Jahren) wurden PC-gestützt die Anzahl der Zielaufnahmen, deren Anteil am Gesamtflächendosisprodukt sowie der durchleuchtungsbedingte Anteil am Gesamtflächendosisprodukt ermittelt. Ergebnisse: In 80 % der Fälle ermöglichte der Einsatz des Computerprogramms eine korrekte Differenzierung zwischen Fluoroskopie und Radiographie. Falsche Ergebnisse fanden sich hauptsächlich bei Neugeborenen und Kleinkindern. Die Gesamtstrahlenbelastung variierte abhängig vom Patientenalter zwischen 22 und 651 cGy × cm2, durchschnittlich betrug der Anteil der Durchleuchtung 78 %. Schlußfolgerung: PC-gestützt ist es möglich den Anteil der Durchleuchtung am Gesamtflächendosisprodukt bei älteren Kindern, die sich einem Miktionszysturethrogramm unterziehen, zu ermitteln. Dieser beträgt bei Verwendung der digitalen Bildverstärkertechnik mehr als 75 %. Bei Neugeborenen und Kleinkindern versagt die Methode.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001200050087
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Ischämie der unteren Extremität durch eine persistierende A. ischiadica – ein möglicher interventioneller Therapieansatz (2000)
    Springer
    Der Radiologe 40 (2000), S. 745-747 
    Details
    ISSN: 1432-2102
    Keywords: Schlüsselwörter A. ischiadica ; Aneurysma ; Thrombolyse ; Angiographie ; Keywords Sciatic artery ; Aneurysm ; Thrombolysis ; Angiography ; Stentgraft
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract The sciatic artery is a rarely seen variant of the vessels of the lower limb. Anatomically it is the prolongation of the inferior gluteal artery and accompanies the sciatic nerve from the sciatic foramen to the knee. More than other vessels, the sciatic artery shows vasculopathies like diffuse dilatation or aneurysms. This report describes an interesting case of embolic acute ischemia, caused by a persistent sciatic artery with an aneurysm. We treated the ischemia with intraA. l lysis and bridged the aneurysm with an covered stent.
    Notes: Zusammenfassung Die A. ischiadica ist eine selten zu findende anatomische Variante des Gefäßsystems der unteren Extremität. Anatomisch entspricht die A. ischiadica einer Verlängerung der A. glutea inferior und begleitet den N. ischiadicus ab dem Foramen ischiadicum bis zum Knie, wo sie in die Unterschenkelarterien mündet und zu den muskelversorgenden Arterien gehört. Die A. ischiadica neigt aufgrund eines minderwertigen Gefäßaufbaus zu Vaskulopathien. Insbesondere aneurysmale Dilatationen der A. ischiadica sind mit einer hohen Inzidenz beschrieben worden. Der vorliegende Fallbericht beschreibt den interessanten Fall einer akuten Ischämie im Bereich des Unterschenkels, ausgelöst durch Thromben aus einer aneurysmatisch veränderten A. ischiadica. Die akute Ischämie wurde erfolgreich durch eine intraarterielle Lyse behandelt. Das Aneurysma wurde sekundär durch eine beschichtete Stentprothese ausgeschaltet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001170050805
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Diagnostic imaging in Crohn’s disease: comparison of magnetic resonance imaging and conventional imaging methods (2000)
    Springer
    International journal of colorectal disease 15 (2000), S. 176-181 
    Details
    ISSN: 1432-1262
    Keywords: Keywords MRI ; Abdomen ; Crohn’s disease ; Inflammatory small bowel disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Conventional enteroclysis remains the method of choice in the diagnosis of inflammatory small bowel disease. The reported sensitivity rates, however, for the diagnosis of extraintestinal processes, such as fistulae and abscesses, are moderate. Computed tomography (CT) is the method of choice for the diagnosis of extraintestinal complications. The anatomical designation of the affected bowel segment may, however, prove difficult due to axial slices, and the applied radiation dose is high. The use of magnetic resonance imaging (MRI) in the diagnosis of inflammatory small bowel disease is a relatively new indication for the method; prerequisites were the development of breathhold sequences and phased array coils. Optimized magnetic resonance tomographic imaging requires a combined method of enteroclysis and MRI, which guarantees an optimal filling and distension of the small bowel. The high filling volume leads to a secondary paralysis of the small bowel and avoids motion artifacts. In a trial of 84 patients with histological and endoscopic correlation the sensitivity in diagnosing inflammatory bowel disease was 85.4% for enteroclysis and 95.2% for MRI, and the specificity was 76.9% for enteroclysis and 92.6% for MRI. As none of the abscesses was diagnosed with enteroclysis, the sensitivity was 0% for enteroclysis, but 77.8% for MRI. The sensitivity in diagnosing fistulae was 17.7% for enteroclysis and 70.6% for MRI. In summary, MRI can detect the most relevant findings in patients with inflammatory small bowel disease with an accuracy superior to that of enteroclysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003840000219
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...