Abstract：
OBJECTIVE:A prospective study was conducted to determine the accuracy of routine magnetic resonance (MR) imaging in correctly identifying subchondral fracture in avascular necrosis of the femoral head without apparent focal collapse on standard radiographs. MATERIALS AND METHODS:Spiral computed tomography (CT) with coronal and sagittal reformations and routine MR imaging with spin-echo T1WI and fat-suppressed spin-echo T2WI coronal, axial, and sagittal images were performed in 28 hips of 25 patients (M/F = 20:5; age 16-76 years) suffering from early-stage avascular necrosis of the femoral head on standard radiographs. The MR images were reviewed by a musculoskeletal radiologist and a general radiologist in blinded fashion. Using CT as the standard of reference, the accuracy of MR imaging in diagnosing subchondral fractures in avascular necrosis was evaluated. RESULTS:When the diagnoses of the two readers were compared with each other, only 16 of the 28 diagnoses (57.5%) agreed. Seventeen of the 28 MR imaging readings (60.7%) made by the musculoskeletal radiologist and 15 of the 28 (53.5%) made by the general radiologist agreed with those of the CT standard. False-positive diagnosis (that is, diagnosis of fracture when no fracture could be seen on CT) was more common than false-negative diagnosis. CONCLUSIONS:The accuracy of routine MR imaging in the evaluation of subchondral fracture is not satisfactory. False-positive diagnosis is not uncommon. Interpretation of routine MR imaging readout should be guarded.
journal_name
Skeletal Radioljournal_title
Skeletal radiologyauthors
Yeh LR,Chen CK,Huang YL,Pan HB,Yang CFdoi
10.1007/s00256-009-0659-0subject
Has Abstractpub_date
2009-06-01 00:00:00pages
559-64issue
6eissn
0364-2348issn
1432-2161journal_volume
38pub_type
杂志文章abstract：:We present a case of an intramuscular granular cell tumor in the thigh manifesting a 'stripe sign' on magnetic resonance imaging (MRI). This MR finding may correspond with the entrapped muscle fibers within the tumor, which demonstrated parallel arrangement on histopathologic examination. In addition, other disease en...
journal_title：Skeletal radiology
pub_type： 杂志文章,评审
doi：10.1007/s00256-015-2247-9
更新日期：2016-01-01 00:00:00
abstract：OBJECTIVE:To report the application of dynamic contrast-enhanced subtraction MRI for detecting recurrences in aggressive or malignant soft tissue tumors. DESIGN:The imaging studies consisted of static (T1- and T2-weighted spin-echo) acquisitions, followed by dynamic conventional spin-echo short TR/TE images (at 45 s, ...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s002560050428
更新日期：1998-09-01 00:00:00
abstract：:The skull in homozygous beta-thalassaemia may present several abnormalities, such as osteopenia, widening of the diploic space, and a "hair-on-end" appearance. In some cases it presents also a particular stratified appearance caused by a variable number of osseous lamellae, parallel with the inner table. This "lamella...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/BF00361428
更新日期：1989-01-01 00:00:00
abstract：:We report on a 50-year-old man who suffered from chronic lumbago. CT and MRI revealed a paravertebral tumor mass growing through the neural foramen of lumbar vertebrae 1/2. Signal features on MRI and contrast medium enhancement characteristics were not diagnostically specific. After biopsy a glomus tumor of uncertain ...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-004-0868-5
更新日期：2005-02-01 00:00:00
abstract：OBJECTIVE:The objectives of the current study were (1) to quantify the incidence of increased T2 signal in the distal clavicle and (2) to assess the clinical significance of this finding in patients with chronic acromioclavicular (AC) joint pain. DESIGN AND PATIENTS:Eight patients (five male and three female, 15-41 ye...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s002560000284
更新日期：2000-12-01 00:00:00
abstract：OBJECTIVE:The description of femoral head sphericity and related risk for femoroacetabularimpingement is currently limited to an angular estimate-the alpha angle-whose relevance and accuracy have been challenged. We developed a three-dimensional approach for both automated digital measurement of the alpha angle and the...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-010-1021-2
更新日期：2011-07-01 00:00:00
abstract：OBJECTIVE:This study was undertaken to evaluate whether sonography is a useful tool in the diagnosis of soft tissue disorders as a possible cause for discomfort and/or pain after shoulder arthroplasty. DESIGN AND PATIENTS:Static and dynamic ultrasound examinations were performed in the standard sectional planes on 22 ...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-002-0555-3
更新日期：2002-12-01 00:00:00
abstract：OBJECTIVE:To investigate the accuracy of plain radiographs, and the effect of observer experience, in the assessment of ankle effusions compared with an MRI gold standard. DESIGN AND PATIENTS:Anteroposterior (AP) and lateral radiographs of the ankle of 39 patients were evaluated by four observers, ranging from first-y...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-004-0833-3
更新日期：2004-12-01 00:00:00
abstract：OBJECTIVE:The objective was to study the natural course of Modic type 1 change (M1) in relation to lumbar disc degeneration. MATERIALS AND METHODS:Twenty-four chronic low back pain (LBP) patients with M1 on lumbar spine were selected from 1,015 patients with magnetic resonance imaging from a follow-up study lasting fo...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-008-0611-8
更新日期：2009-03-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-017-2625-6
更新日期：2017-08-01 00:00:00
abstract：:A 51-year-old native of Rio de Janeiro presented with bilateral synchronous Paget's sarcomas in the tibiae, which developed in the upper right tibia and in the distal third of the left tibia. There were no other areas of Paget's disease. The largest tumor spread to the right inguinal nodes and also soft tissue. The tu...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s002560050627
更新日期：1999-10-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-012-1406-5
更新日期：2012-09-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 临床试验,杂志文章
doi：10.1007/s00256-009-0732-8
更新日期：2010-03-01 00:00:00
abstract：:In this study, we present the rare case of a patient with a multifocal giant cell tumor of the tendon sheath occurring at three different localizations along the same tendon. We review radiographic, ultrasonographic, and magnetic resonance imaging findings, and discuss previously reported cases. ...
journal_title：Skeletal radiology
pub_type： 杂志文章,评审
doi：10.1007/s00256-012-1552-9
更新日期：2013-03-01 00:00:00
abstract：:The pre-ossification center represents the initial structural change in the development of the secondary ossification center. We report CT and MRI findings of a focus in the cartilaginous trochlea of an appropriately aged child compatible with the pre-ossification center. ...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-004-0773-y
更新日期：2004-12-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-012-1472-8
更新日期：2013-02-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-020-03599-2
更新日期：2020-09-16 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s002560050486
更新日期：1999-02-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-011-1130-6
更新日期：2012-01-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-002-0561-5
更新日期：2002-11-01 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
pub_type： 杂志文章,评审
doi：10.1007/s00256-009-0833-4
更新日期：2010-06-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-020-03498-6
更新日期：2020-11-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/BF02580394
更新日期：1994-11-01 00:00:00
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journal_title：Skeletal radiology
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：OBJECTIVE:To assess the feasibility of subtracting various concentrations of iodinated contrast material on dual-energy computed tomographic (DECT) arthrography to provide both CT arthrography and virtual unenhanced CT (VUCT) in a single CT acquisition. MATERIALS AND METHODS:This was an in vitro study for which instit...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-014-1817-6
更新日期：2014-05-01 00:00:00
abstract：:Myositis ossificans (MO) is a benign soft tissue lesion with non-neoplastic heterotopic bone formation. MO in the intermediate and mature stages can be easily diagnosed if characteristic imaging findings such as a peripheral zonal pattern of ossification with variable thickness is observed. However, it is difficult to...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/s00256-016-2441-4
更新日期：2016-10-01 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：2018-12-01 00:00:00
abstract：:Lipoblastoma in the prepatellar region was observed in a 7-month-old girl. The diffuse (lipoblastomatosis) and circumscribed forms have different radiological appearances. Lobular proliferation of fatty tissue with fibrous septae is characteristic of the circumscribed form. ...
journal_title：Skeletal radiology
pub_type： 杂志文章
doi：10.1007/BF02341676
更新日期：1991-01-01 00:00:00
abstract：:The clinical results of total joint arthroplasty are usually excellent, but surgeons, radiologists, and pathologists are often called upon to evaluate, in one way or another, the stability of the implants. These evaluations are aided by an understanding of the basic pathophysiology of total joint arthroplasty. The fir...
journal_title：Skeletal radiology
pub_type： 杂志文章,评审
doi：10.1007/s002560050541
更新日期：1999-08-01 00:00:00
