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  • 1
    Electronic Resource
    Electronic Resource
    Imaging of bone tumors: evaluation of direct magnification radiography (1996)
    Springer
    Skeletal radiology 25 (1996), S. 441-447 
    Details
    ISSN: 1432-2161
    Keywords: Key words Bone neoplasms ; diagnosis ; Magnification radiography ; Bones ; radiography ; Radiography ; comparative studies ; Radiography ; technology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Objective. To evaluate the potentials of magnification radiography as compared with conventional radiography in diagnosing bone tumors. Design and patients. Sixty-two patients with primary bone tumors and tumorlike lesions underwent radiography with both conventional (non-magnified) and magnification (fivefold) techniques. All radiographs were analyzed by four radiologists and the findings correlated with the histopathology findings. The microfocal X-ray unit used for magnification radiography had a focal spot size of 20–130 μm. Digital luminescence radiography was employed with magnification, while normal film-screen systems were used with conventional radiography. Results. The diagnosis of benign and malignant lesions as well as the individual tumor diagnosis were determined with higher accuracy using magnification compared with conventional radiography (88% vs 75% and 71% vs 52%, p〈0.01). Margins of destruction, periosteal reactions and matrix patterns were evaluated with higher certainty by all of the radiologists (p〈0.01). Conclusion. Magnification radiography may improve the evaluation and diagnosis of bone tumors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002560050112
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Neue MR-Kontrastmittel in der Leberdiagnostik Erste klinische Ergebnisse mit hepatobiliärem Eovist® (Gadolinium-EOB-DTPA) und RES-spezifischem Resovist® (SH U 555 A) (1996)
    Springer
    Der Radiologe 36 (1996), S. 124-133 
    Details
    ISSN: 1432-2102
    Keywords: Schlüsselwörter Leber ; MRT ; Kontrastmittel ; Resovist® ; Eovist® ; Key words Liver ; MRI ; Contrast agents ; Resovist ; Eovist
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The purpose of this work is to describe our initial clinical experience (in 66 patients) with Resovist and Eovist, two new liver-specific MR contrast agents. We focus our report on safety aspects, dose finding, and optimization of technical parameters. Both contrast agents were well tolerated and improved the detectability of focal liver lesions. With Resovist, postcontrast MRI may be started as early as 10 min following injection. The dose of 8 μmol Fe/kg bodyweight was sufficient to achieve diagnostic tumor-liver contrast levels. Since Eovist can also be administered as a bolus, dynamic enhance- ment patterns may be studied for tumor characterization as well. Breath-hold T 1-weighted FLASH images were superior to other T 1-weighted techniques with and without fat saturation.
    Notes: Zusammenfassung In der vorliegenden Arbeit werden erste klinische Ergebnisse (66 Patienten) der für die Leberbildgebung entwickelten Kontrastmittel Resovist® und Eovist® vorgestellt. Es wurden Sicherheitsaspekte, Dosierungsfragen und die optimale Untersuchungstechnik am Beispiel fokaler Leberläsionen untersucht. Beide „leberspezifischen“ Kontrastmittel zeigten bei guter Verträglichkeit eine Verbesserung des Nachweises fokaler Leberläsionen. Die Untersuchung mit Resovist® kann bereits 10 min nach der Kontrastmittelinjektion erfolgen. Mit einer Dosis von 8 μmol Fe/kg Körpergewicht konnte eine ausreichender Tumor-Leber-Kontrast erzielt werden. Da Eovist® zusätzlich im Bolus injiziert werden kann, ergeben sich neben dem Nachweis fokaler Leberläsionen Möglichkeiten der Charakterisierung durch Analyse der Perfusionsmuster. Atemgehaltene T 1-gewichtete FLASH-Sequenzen waren sonstigen T 1-gewichteten Sequenzen ohne und mit Fettgesättigung überlegen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001170050049
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Erscheinungsformen der Mesenterialzyste Ein kasuistischer Beitrag (1996)
    Springer
    Der Radiologe 36 (1996), S. 503-507 
    Details
    ISSN: 1432-2102
    Keywords: Schlüsselwörter Mesenterialzyste ; Ultraschall ; CT ; MRT ; Key words Mesenteric cysts ; Ultrasound ; Computed tomography ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Mesenteric cysts are considered as a rare cause of abdominal complaints. Histologically, several specific types can be distinguished: lymphangioma, nonpancreatic pseudocyst, enteric duplication cyst, enteric cyst and mesothelial cyst. Histopathological classification and radiological findings in two cases of mesenteric cysts are presented, and, with regard to the literature, radiological appearance and differential diagnoses are discussed.
    Notes: Zusammenfassung Mesenterialzysten stellen eine eher seltene Ursache abdomineller Beschwerden dar. Ihre derzeit gebräuchliche Einteilung unterscheidet zwischen Lymphangiom, nichtpankreatischer Pseudozyste, enteraler Duplikationszyste, enteraler Zyste und Mesothelialzyste. Anhand zweier Kasuistiken werden unter Berücksichtigung der Literatur histopathologische Klassifikation und Schnittbildbefunde der Mesenterialzyste dargestellt sowie die zugehörigen Differentialdiagnosen unter besonderer Berücksichtigung des jeweiligen Stellenwertes der Bildgebung diskutiert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001170050104
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Fracture healing: direct magnification versus conventional radiography (1994)
    Springer
    European radiology 4 (1994), S. 341-346 
    Details
    ISSN: 1432-1084
    Keywords: Fracture healing ; Magnification radiography ; Roentgen technique
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The aim of the study was to evaluate the potential of magnification radiography in diagnosing fracture healing and assessing its complications. Seventy-three patients with fractures or who had undergone osteotomy were radiographed with both conventional (non-magnified) and magnification (5-fold) techniques. Since 10 patients were radiographed twice and 1 three times, 83 radiographs using each technique were obtained. All radiographs were analysed and the findings correlated with the patients' follow-up studies. The microfocal X-ray unit used for magnification radiography had a focal spot size of 20–130 μm. As an imaging system, digital luminescence radiography was employed with magnification, while normal film-screen systems were used with conventional radiography. Manification radiography proved superior to conventional radiography in 47% of cases: endosteal and periosteal callus formations were sen earlier and better in 26 cases, and osseous union could be evaluated with greater certainty in 33 cases. In 49% of cases magnification radiography was equal and in 4% inferior to conventional radiography. Additionally an “inter-observer analysis” was carried out. Anatomical and pathological structures were classified into one of four grades. Results were significantly (P 〈 0.01) better using magnification radiography. We conclude that the magnification technique is a good method for monitoring fracture healing in its early stages.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00599068
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    Paper (German National Licenses)
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