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  • 1
    Electronic Resource
    Electronic Resource
    Role of radiologic imaging in management planning of giant cell tumor of bone (1984)
    Springer
    Skeletal radiology 12 (1984), S. 79-89 
    Details
    ISSN: 1432-2161
    Keywords: Bone tumors ; Giant cell tumor ; Radiographic diagnosis ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The radiologic studies of 24 patients with giant cell tumors were evaluated with respect to their ability to determine tumor extent and to influence management. Computed tomography (CT) was the most accurate method for detecting soft tissue tumor extension, and conventional tomography was the best technique for evaluating penetration of subarticular cortical bone. Detection of these findings led to performance of en bloc tumor resection rather than curettage and grafting in patients with lower extremity tumors. Arthrotomography was helpful in some instances in detecting cartilage and joint invasion by tumor, joint invasion being an indication for extra-articular rather than transarticular tumor resection. Scintigraphy was not as accurate as conventional tomography or CT in determining intraosseous tumor extent because of increased tracer, uptake beyond the true tumor limits in several cases. Angiography has been largely replaced by CT in evaluating giant cell tumors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00360811
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The computed tomographic findings of popliteal cysts (1983)
    Springer
    Skeletal radiology 10 (1983), S. 26-29 
    Details
    ISSN: 1432-2161
    Keywords: Computed tomography ; Knee, synovial membrane ; Cyst popliteal
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The computed tomographic (CT) findings of two popliteal cysts are presented, and the correlated anatomico-pathologic changes are discussed. The characteristic findings include thin, well-defined cyst wall, fluid density contents, central septum or septi, and medial popliteal location with mediocaudal extension. These findings, however, may vary due to herniation or rupture of the synovial membrane, gelatinous cyst contents, or metaplastic change of the cyst wall. Differential diagnoses include liposarcoma, popliteal aneurysm or hematoma, thrombophlebitis, xanthoma, fibrosarcoma, or other soft tissue tumors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00355387
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Open quiz solution: Case report 789 (1993)
    Springer
    Skeletal radiology 22 (1993), S. 528-531 
    Details
    ISSN: 1432-2161
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00209103
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    MR visualization of the popliteomeniscal fascicles (1999)
    Springer
    Skeletal radiology 28 (1999), S. 561-566 
    Details
    ISSN: 1432-2161
    Keywords: Key words Knee anatomy ; Knee MRI ; Meniscal fascicles ; Lateral meniscus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Objective. Although the popliteomeniscal fascicles are important stabilizers of the lateral meniscus, there have been few studies of their MR appearance. We wished to determine: (1) whether the fascicles are normally seen on MR imaging, and (2) whether certain imaging factors influenced their visualization. Design and patients. We reviewed the sagittal MR images of 66 consecutive patients who had no evidence of injury to the lateral compartment. We determined the frequencies of MR visualization of the superior and inferior popliteomeniscal fascicles, and whether visualization was affected by the weighting of spin echo sequences, the presence of a joint effusion, slice placement relative to the fascicles, and windowing of the images. Results and conclusions. Both popliteomeniscal fascicles were seen in 64 of the 66 patients. The fascicles were better seen on T2-weighted images than on proton-density weighted images (P〈0.01). On the T2-weighted images, fascicle visualization was not significantly affected by the presence or absence of an effusion, slice placement or image windowing (P=0.2 to 1.0). On proton-density weighted images, fascicle visualization was significantly improved when high-contrast windowing was used (P=0.04). In conclusion, we found that the popliteomeniscal fascicles are normally seen on MR imaging of the knee when there are no lateral compartment injuries. The fascicles are significantly better visualized on T2-weighted than on proton-density weighted images. Visualization is not significantly affected by the presence of an effusion or slice placement.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002560050619
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Juxtacortical osteosarcoma: A radiologic and histologic spectrum (1985)
    Springer
    Skeletal radiology 14 (1985), S. 38-46 
    Details
    ISSN: 1432-2161
    Keywords: Juxtacortical osteosarcoma ; Radiographic features ; Pathologic features
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Radiologic and pathologic findings were analyzed in four patients with parosteal osteosarcomas, three with periosteal osteosarcomas and one with a high-grade surface osteosarcoma. Plain film and histologic findings considered together are usually distinctive and permit differentiation of these tumors from each other and from other lesions with which they are frequently confused. Prognosis and management are determined by tumor extent and histologic grade. Computed tomography is more accurate than conventional tomography, angiography, and bone scintigraphy for preoperative determination of tumor extent and for assessing tumor relationships to the bone cortex and medullary cavity. Histologically, parosteal osteosarcomas are usually low-grade, while periosteal and high-grade surface osteosarcomas are generally high-grade tumors and have worse prognoses. High-grade surface osteosarcoma, which is indistinguishable in behavior and histology from classical medullary osteosarcoma, requires more aggressive surgical management than parosteal and periosteal osteosarcomas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00361191
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Case report 789 (1993)
    Springer
    Skeletal radiology 22 (1993), S. 306-307 
    Details
    ISSN: 1432-2161
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00197681
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Anteroinferior tears of the glenoid labrum: fat-suppressed fast spin-echo T2 versus gradient-recalled echo MR images (1997)
    Springer
    Skeletal radiology 26 (1997), S. 293-297 
    Details
    ISSN: 1432-2161
    Keywords: Key words Magnetic resonance ; pulse sequences ; Shoulder ; magnetic resonance ; Shoulder ; dislocation ; Magnetic resonance ; rapid imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Objective. To compare fat-suppressed fast spin-echo (FSE) T2-weighted images with gradient-recalled echo (GRE) T2*-weighted images in the evaluation of anteroinferior labral tears. Design. MR images were retrospectively reviewed by two radiologists masked to the history and arthroscopic findings. They separately interpreted the anteroinferior labrum as torn or intact, first on one pulse sequence and then, 4 weeks later, on the other sequence. The MR interpretations were correlated with the arthroscopic findings. Patients. Nine patients with anteroinferior labral tears, and nine similarly-aged patients with normal, labra were studied. Results and conclusions. Observer 1 had a sensitivity of 0.56 on the GRE images and 0.67 on the FSE images (P〉0.5), with a specificity of 1.0 for both sequences. Observer 2 had a sensitivity of 0.78 and a specificity of 0.89 for both sequences. In this small study there is no significant difference between GRE and fat-suppressed FSE images in their ability to diagnose anteroinferior labral tears. When evaluating the labrum with conventional MRI, axial fat-suppressed FSE T2-weighted images can be used in place of GRE images without a loss of accuracy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002560050238
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    Paper (German National Licenses)
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