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  • 1
    Electronic Resource
    Electronic Resource
    MR imaging of deferoxamine-induced bone dysplasia in an 8-year-old female with thalassemia major (1993)
    Springer
    Pediatric radiology 23 (1993), S. 523-524 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Bone changes in thalassemic patients receiving deferoxamine therapy for iron chelation include metaphyseal and growth plate irregularities. We present a case of an 8-year-old female with thalassemia major, who had magnetic resonance imaging after plain radiographs had shown metaphyseal changes in the distal femur. The signal characteristics of these abnormalities were consistent with hyaline cartilage; the surrounding marrow showed no evidence of iorn overload.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02012138
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    MR signal characteristics of cadaveric bone allografts in three children with primary bone tumors treated with limb salvage therapy (1994)
    Springer
    Pediatric radiology 24 (1994), S. 488-490 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Three children with adult cadaveric bone allografts for the treatment of bone malignancies are presented. Follow-up magnetic resonance (MR) imaging demonstrated decreased signal on T1-weighted imaging and increased signal on T2-weighted imaging in the allograft without clinical evidence of recurrent disease. These signal characteristics appear to be a normal finding in cadaveric bone allografts and should not be mistaken for recurrence. The finding may reflect persistent marrow necrosis within the allograft marrow cavity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02015006
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Fat-suppressed MRI of musculoskeletal infection: fast T2-weighted techniques versus gadolinium-enhanced T1-weighted images (1997)
    Springer
    Skeletal radiology 26 (1997), S. 654-658 
    Details
    ISSN: 1432-2161
    Keywords: Key words MRI ; Infection ; Gadolinium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Purpose. To investigate gadolinium’s role in imaging musculoskeletal infection by comparing the conspicuity and extent of inflammatory changes demonstrated on gadolinium-enhanced fat-suppressed T1-weighted images versus fat-suppressed fast T2-weighted sequences. Design. Eighteen patients with infection were imaged in a 1.5-T unit, using frequency-selective and/or inversion recovery fat-suppressed fast T2-weighted images (T2WI) and gadolinium-enhanced frequency-selective fat-suppressed T1-weighted images (T1WI). Thirty-four imaging planes with both a fat-suppressed gadolinium-enhanced T1-weighted sequence and a fat-suppressed T2-weighted sequence were obtained. Comparison of the extent and conspicuity of signal intensity changes was made for both bone and soft tissue in each plane. Results. In bone, inflammatory change was equal in extent and conspicuity on fat-suppressed T2WI and fat-suppressed T1WI with gadolinium in 19 planes, more extensive or conspicuous on T2WI in three planes, and less so on T2WI in two planes. Marrow was normal on all three sequences in 10 cases. In soft tissue, inflammatory change was seen equally well in 20 instances, more extensively or conspicuously on the T2WI in 11 instances, and less so on T2WI in 2 instances. One case had no soft tissue involvement on any of the sequences. Five abscesses and three joint effusions were present, all more conspicuously delineated from surrounding inflammatory change on the fat-saturated T1WI with gadolinium. The average imaging time for the fat-saturated T1WI with gadolinium was 6.75 min, while that of the T2-weighted sequences was 5.75 min. Conclusion. Routine use of gadolinium is not warranted. Instead, gadolinium should be reserved for clinically suspected infection in or around a joint, and in cases refractory to medical or surgical treatment due to possible abscess formation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002560050305
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    MR arthrography of the shoulder and hip after fluoroscopic landmarking (2000)
    Springer
    Skeletal radiology 29 (2000), S. 81-84 
    Details
    ISSN: 1432-2161
    Keywords: Key words Arthrography ; MRI ; Fluoroscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Purpose. To describe a technique for intra-articular injection in the MR suite after conventional fluoroscopic landmarking in order to streamline MR arthrography. Design and patients. This technique was performed on 33 consecutive patients referred for MR arthrography of the shoulder to evaluate the glenoid labrum and on 15 consecutive patients referred for MR arthrography of the hip to evaluate the acetabular labrum. The patients were landmarked in the fluoroscopy suite, followed by a conventional MR examination. The intra-articular injection was then performed on the MR table and the MR arthrographic sequences obtained. Results. One of the 48 injections was extra-articular, requiring a second injection. The other injections were performed without incident, and the average total procedure time for all injections was 10 min. Conclusions. This technique is a reliable method of streamlining intra-articular injections when performing conventional MR imaging prior to the MR arthrographic portion of the examination. It shortens the total MR examination time by eliminating a visit to the fluoroscopy suite in the middle of the MR study, and its use of a straight anterior approach for both the shoulder and hip joints should be familiar to most people who perform conventional arthrography.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002560050014
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    Paper (German National Licenses)
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