Abstract:
OBJECTIVE:The transverse relaxation time (T2) in MR imaging has been identified as a potential biomarker of hyaline cartilage pathology. This study investigates whether MR assessments of T2 are comparable between 3-T scanners from three different vendors. DESIGN:Twelve subjects with symptoms of knee osteoarthritis and one or more risk factors had their knee scanned on each of the three vendors' scanners located in three sites in the U.K. MR data acquisition was based on the United States National Institutes of Health Osteoarthritis Initiative protocol. Measures of cartilage T2 and R2 (inverse of T2) were computed for precision error assessment. Intrascanner reproducibility was also assessed with a phantom (all three scanners) and a cohort of 5 subjects (one scanner only). RESULTS:Whole-organ magnetic resonance (WORM) semiquantitative cartilage scores ranged from minimal to advanced degradation. Intrascanner R2 root-mean-square coefficients of variation (RMSCOV) were low, within the range 2.6 to 6.3% for femoral and tibial regions. For one scanner pair, mean T2 differences ranged from -1.2 to 2.8 ms, with no significant difference observed for the medial tibia and patella regions (p < 0.05). T2 values from the third scanner were systematically lower, producing interscanner mean T2 differences within the range 5.4 to 10.0 ms. CONCLUSION:Significant interscanner cartilage T2 differences were found and should be accounted for before data from scanners of different vendors are compared.
journal_name
Skeletal Radioljournal_title
Skeletal radiologyauthors
Balamoody S,Williams TG,Wolstenholme C,Waterton JC,Bowes M,Hodgson R,Zhao S,Scott M,Taylor CJ,Hutchinson CEdoi
10.1007/s00256-012-1511-5subject
Has Abstractpub_date
2013-04-01 00:00:00pages
511-20issue
4eissn
0364-2348issn
1432-2161journal_volume
42pub_type
杂志文章,多中心研究abstract::We present a rare case of alveolar soft-tissue sarcoma, with extensive bone invasion. The differential diagnosis with bone metastasis and primary bone tumors is discussed. ...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s002560050104
更新日期:1996-05-01 00:00:00
abstract:OBJECTIVE:To assess the degree of fluid-fluid levels on MRI in spinal tumours compared with final diagnosis, and the outcome of needle biopsy in such cases. MATERIALS AND METHODS:Retrospective review of patients with a spinal tumour that contained fluid-fluid levels. Data collected included age, sex, spinal location, ...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-020-03621-7
更新日期:2020-09-25 00:00:00
abstract::Gout is the most common crystal-induced arthritis. Gouty tophi typically deposit in the extremities, especially toes and fingers. We present an unusual case of intrapelvic tophaceous gout in a patient suffering from chronic gouty arthritis. CT and MRI of the abdomen and pelvic cavity disclosed calcified gouty tophi ar...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-004-0827-1
更新日期:2005-04-01 00:00:00
abstract::An exceptionally rare case of periosteal Ewing's sarcoma involving the mid shaft of the right tibia was reported. In this case, MRI was the technique that confirmed the integrity of the bone marrow. The clinical, radiographic, and histopathologic features of Ewing's sarcoma have been discussed, as has the differential...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00203705
更新日期:1994-01-01 00:00:00
abstract:OBJECTIVE:To quantify whether injected cement volumes differed between two groups of patients who underwent experimental minimally invasive percutaneous cement injection procedures to stabilize aseptically loose hip prostheses. One patient group was preoperatively treated using gene-directed enzyme prodrug therapy to r...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-014-1924-4
更新日期:2014-11-01 00:00:00
abstract::A skeletal seeking radiopharmaceutical labeled with a long-lived radionuclide was developed to evaluate regional bone formation and its subsequent resorption. The agent is [phosphonate (phenylmethylene hydroxy) bis] - I-125 or I-125 phi PA. Tissue distribution studies in mice (N = 16) showed approximately 40% of the a...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00361978
更新日期:1982-01-01 00:00:00
abstract:OBJECTIVE:The aims of this study were to compare the ultrasound thickness of the affected axillary recess capsule (ARC) with that of the unaffected ARC in patients with frozen shoulder (FS), to analyze whether the ultrasound measurements of the ARC thickness correlate with those obtained using MRI, and to assess whethe...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-018-2959-8
更新日期:2018-11-01 00:00:00
abstract::Thirty one patients suffering from myelopathy associated with ossification of the posterior longitudinal ligament and ligamentum flavum of the spine have been investigated. The pattern of spinal and peripheral hyperostosis was recorded in each case. Flowing anterior vertebral hyperostosis and ligamentous ossification ...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00360789
更新日期:1983-01-01 00:00:00
abstract::We report three patients with known primary tumor in whom radionuclide skeletal imaging for metastatic disease was normal with or without clinical symptomatology referable to this area. Magnetic resonance imaging (MRI) of the spine demonstrated focal areas of abnormal signal intensity in the vertebral bodies of these ...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00197616
更新日期:1990-01-01 00:00:00
abstract::Association of cranial sclerosis with mixed osteopathia striata is a rate combination which has been proved recently to be an autosomal dominant entity. The present case, apparently sporadic in the kindred, records a further example of this association in a 27-year-old asymptomatic male. ...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00347093
更新日期:1980-02-01 00:00:00
abstract:OBJECTIVE:To identify radiological changes of the hands and feet in a large group of patients with Laurence-Moon-Bardet-Biedl syndrome. DESIGN:Postero-anterior views of hands and feet were obtained and analysed. PATIENTS:The material consists of 43 Scandinavian patients with the syndrome (24 males and 19 females; age...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s002560050153
更新日期:1996-10-01 00:00:00
abstract:OBJECTIVE:To highlight focal bone abnormality in the cuboid due to tendinopathy of the adjacent peroneus longus. DESIGN:A retrospective review was carried out of the relevant clinical and imaging features. PATIENTS:Two male and two female patients were studied, mean age 51.5 years (range 32-67 years), referred with f...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-005-0907-x
更新日期:2005-07-01 00:00:00
abstract::We described a case of high-grade surface sarcoma of the radius in a 14-year-old boy. The lesion appeared radiologically benign and was confined to the surface. The tumor was resected. At the time of biopsy both lungs showed diffuse metastases. Following surgery the patient underwent chemotherapy and the lung metastas...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:
更新日期:1993-01-01 00:00:00
abstract::14 patients are recorded in whom one clavicle has a wavy shape not related to trauma or to a known congenital anomaly. Since the affected clavicle is more often the right, it is suggested that this alteration may be related to the effect of subclavian artery pulsations, such as cause congenial pseudarthrosis of the cl...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00202702
更新日期:1990-01-01 00:00:00
abstract:OBJECTIVE:To develop and validate a deep convolutional neural network (CNN) method capable of (1) selecting a specific shoulder sagittal MR image (Y-view) and (2) automatically segmenting rotator cuff (RC) muscles on a Y-view. We hypothesized a CNN approach can accurately perform both tasks compared with manual referen...
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
abstract::Two cases of neuropathic disease of the shoulder without evidence of a neurological disorder are described. The absence of any neurological disorder led to the cases being initially mistaken for primary neoplasms of bone, lending support to the vascular theory of pathogenesis of this lesion. Careful attention to the r...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00194258
更新日期:1991-01-01 00:00:00
abstract:OBJECTIVE:Fibrogenesis imperfecta ossium is an extremely rare disorder that can easily be misdiagnosed. We retrospectively reviewed the clinical and imaging data of three confirmed cases of fibrogenesis imperfecta. DESIGN AND PATIENTS:The patients consisted of two men and one woman, ranging in age from 40 to 53 years....
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s002560050535
更新日期:1999-07-01 00:00:00
abstract::Acute megakaryoblastic leukemia or acute "malignant" myelosclerosis is an acute and rapidly progressive myeloproliferative syndrome characterized by minimal or absent splenomegaly, pancytopenia, diffuse marrow fibrosis, and circulating blasts of megakaryocytic origin. The disease must be differentiated from other hema...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00367381
更新日期:1982-01-01 00:00:00
abstract::A case of an intraarticular epithelioid sarcoma is presented. The patient was a 35 year old man who presented with a 10 months history of a chronic monoarthritis. The MRI showed a diffuse lesion involving the synovial membrane of the knee. There was a marked increased signal on T2 weighted images. Most epithelioid sar...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s002560050417
更新日期:1998-08-01 00:00:00
abstract:OBJECTIVE:To examine the efficacy of ultrasound (US)-guided injections for midfoot joint degenerative changes. MATERIALS AND METHODS:The US images and radiographs of 63 patients with midfoot joint degenerative changes were retrospectively reviewed. In those patients who had US-guided intra-articular steroid injection,...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-010-1094-y
更新日期:2011-08-01 00:00:00
abstract:OBJECTIVE:To provide an update on imaging of metabolic bone disease based on new developments, findings, and changing practices over the past 30 years. MATERIALS AND METHODS:Literature review of osteoporosis, osteomalacia, renal osteodystrophy, Paget's disease, bisphosphonates, with an emphasis on imaging. RESULTS:Ci...
journal_title:Skeletal radiology
pub_type: 杂志文章,评审
doi:10.1007/s00256-009-0666-1
更新日期:2009-09-01 00:00:00
abstract::Inflammatory myopathies encompass a group of acquired muscle disorders caused by infectious agents (bacteria, viruses, fungi and parasitic agents) or autoimmune processes (polymyositis, dermatomyositis and other types). In suspected infection sonography, CT and MRI are all able to show edema and fluid collections in s...
journal_title:Skeletal radiology
pub_type: 杂志文章,评审
doi:10.1007/s002560000238
更新日期:2000-08-01 00:00:00
abstract::In a review of 42 cases of degenerative arthritis of the cervical spine and 22 cases of cervical spine trauma with an observed anterior slippage (spondylolisthesis) or posterior slippage (retrolisthesis) of the vertebral bodies of 2 mm or more, characteristic features were observed which allowed distinction between de...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00355101
更新日期:1986-01-01 00:00:00
abstract:OBJECTIVE:To determine the dosage of gadobenate dimeglumine (Gd-BOPTA) necessary for MRI of rheumatoid arthritis of the wrist. DESIGN AND PATIENTS:Seven wrists inflamed with rheumatoid arthritis were imaged using a dedicated 0.2-T MR unit. Four cumulative dosages of 0.0125, 0.025, 0.05 and 0.1 mmol/kg body weight (BW)...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s002560000294
更新日期:2001-01-01 00:00:00
abstract::The os styloideum, an accessory carpal bone, may suffer injury during traumatic wrist flexion. The case described corresponds to an acute os styloideum injury in an elite athlete; a diagnosis made using high-resolution computed tomography and magnetic resonance imaging permitted not only the identification of the anom...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-005-0027-7
更新日期:2006-06-01 00:00:00
abstract:OBJECTIVE:To look for any association between oedema in the superolateral portion of the infrapatellar fat pad and patellar maltracking. MATERIALS AND METHODS:We compared two groups of knee MRI with regard to five patellar maltracking parameters. The first group included 100 knees with evidence of oedema in the supero...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-011-1299-8
更新日期:2012-08-01 00:00:00
abstract:BACKGROUND:Preoperative diffusion-weighted MRI (DW-MRI) has been described as an efficient method to differentiate good and poor responders to chemotherapy in osteosarcoma patients. A DW-MRI performed earlier during treatment could be helpful in monitoring chemotherapy. OBJECTIVE:To assess the accuracy of DW-MRI in ev...
journal_title:Skeletal radiology
pub_type: 临床试验,杂志文章
doi:10.1007/s00256-012-1360-2
更新日期:2012-09-01 00:00:00
abstract:OBJECTIVE:To describe the MR appearance following autogenous osteochondral "plug" transfer for the treatment of focal chondral defects of the knee. DESIGN AND PATIENTS:Twenty-nine 1.5-T MR knee studies including dynamic gadolinium enhancement were performed on 21 patients following autogenous osteochondral "plug" tran...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s002560100371
更新日期:2001-10-01 00:00:00
abstract::This paper reports two giant-cell tumours of bone of low-grade malignancy, both complicated by the development of pulmonary metastases in which the histological appearances were identical to those of the primary neoplasm. Ten similar cases in the literature are reviewed. ...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00357894
更新日期:1983-01-01 00:00:00
abstract::This case series describes and illustrates three cases of sclerotic osseous metastases from untreated renal cell carcinoma (RCC). RCC is commonly metastatic to the skeleton but almost always produces lytic metastases, with only three prior reports of sclerotic metastases identified in the literature. Sclerotic metasta...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-012-1424-3
更新日期:2012-09-01 00:00:00