Abstract:
OBJECTIVE:Intraarticular gadolinium-enhanced magnetic resonance arthrography (MRA) is commonly applied to characterize morphological disorders of the hip. However, the reproducibility of retrieving anatomic landmarks on MRA scans and their correlation with intraarticular pathologies is unknown. A precise mapping system for the exact localization of hip pathomorphologies with radial MRA sequences is lacking. Therefore, the purpose of the study was the establishment and validation of a reproducible mapping system for radial sequences of hip MRA. MATERIALS AND METHODS:Sixty-nine consecutive intraarticular gadolinium-enhanced hip MRAs were evaluated. Radial sequencing consisted of 14 cuts orientated along the axis of the femoral neck. Three orthopedic surgeons read the radial sequences independently. Each MRI was read twice with a minimum interval of 7 days from the first reading. The intra- and inter-observer reliability of the mapping procedure was determined. RESULTS:A clockwise system for hip MRA was established. The teardrop figure served to determine the 6 o'clock position of the acetabulum; the center of the greater trochanter served to determine the 12 o'clock position of the femoral head-neck junction. The intra- and inter-observer ICCs to retrieve the correct 6/12 o'clock positions were 0.906-0.996 and 0.978-0.988, respectively. CONCLUSIONS:The established mapping system for radial sequences of hip joint MRA is reproducible and easy to perform.
journal_name
Skeletal Radioljournal_title
Skeletal radiologyauthors
Klenke FM,Hoffmann DB,Cross BJ,Siebenrock KAdoi
10.1007/s00256-014-2026-zsubject
Has Abstractpub_date
2015-03-01 00:00:00pages
339-43issue
3eissn
0364-2348issn
1432-2161journal_volume
44pub_type
杂志文章abstract::A 13-year-old female presented after repeated trauma with pain of the distal end of the thigh. The findings on plain films, bone scan, and CT were indeterminate. MRI accurately demonstrated a fracture line with bone marrow edema, suggesting the diagnosis of stress fracture. MRI patterns of stress fracture were conside...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00191091
更新日期:1991-01-01 00:00:00
abstract:OBJECTIVE:This study aims to quantitatively characterize the distribution of subchondral bone density across the human femoral head using a computed tomography derived measurement of bone density and a common reference coordinate system. MATERIALS AND METHODS:Femoral head surfaces were created bilaterally for 30 patie...
journal_title:Skeletal radiology
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journal_title:Skeletal radiology
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journal_title:Skeletal radiology
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journal_title:Skeletal radiology
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pub_type: 临床试验,杂志文章
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pub_type: 杂志文章
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journal_title:Skeletal radiology
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journal_title:Skeletal radiology
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journal_title:Skeletal radiology
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journal_title:Skeletal radiology
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journal_title:Skeletal radiology
pub_type: 杂志文章
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journal_title:Skeletal radiology
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journal_title:Skeletal radiology
pub_type: 杂志文章
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更新日期:1995-01-01 00:00:00
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journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s002560000316
更新日期:2001-02-01 00:00:00
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journal_title:Skeletal radiology
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更新日期:2004-12-01 00:00:00
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journal_title:Skeletal radiology
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更新日期:2000-09-01 00:00:00
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journal_title:Skeletal radiology
pub_type: 杂志文章,评审
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更新日期:2004-04-01 00:00:00
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journal_title:Skeletal radiology
pub_type: 杂志文章
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journal_title:Skeletal radiology
pub_type: 杂志文章,评审
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更新日期:2016-10-01 00:00:00
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journal_title:Skeletal radiology
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更新日期:1983-01-01 00:00:00
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journal_title:Skeletal radiology
pub_type: 杂志文章
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更新日期:2007-04-01 00:00:00