Revision of the 1994 World Health Organization T-score definition of osteoporosis for use in older East Asian women and men to reconcile it with their lifetime risk of fragility fracture
AbstractThe 1994 WHO criterion of a T-score ≤ -2.5 for densitometric osteoporosis was chosen because it results in a prevalence commensurate with the observed lifetime risk of fragility fractures in Caucasian women aged ≥ 50 years. Due to the much lower risk of fragility fracture among East Asians, the application of the conventi onal WHO criterion to East Asians leads to an over inflated prevalence of osteoporosis, particularly for spine osteoporosis. According to statistical modeling and when a local BMD reference is used, we tentatively recommend the cutpoint values for T-score of femoral neck, total hip, a...
Source: Skeletal Radiology - February 10, 2024 Category: Radiology Source Type: research
A practical approach to interpretation of 18F-fluorodeoxyglucose positron emission tomography/computed tomography for postoperative spine infection
ConclusionThese observations have been incorporated into a checklist which is now being used at the time of interpretation. The potential sensitivity and specificity in the diagnosis of infection are close to 100%. (Source: Skeletal Radiology)
Source: Skeletal Radiology - February 10, 2024 Category: Radiology Source Type: research
Experience with ultrasound neurography for postoperative evaluation of targeted muscle reinnervation
This report will illustrate the potential utility of ultrasound neurography to accurately differentiate TMR surgical outcomes in two patients that received upper extremity amputation and subsequent reconstruction with TMR. Ultrasound evaluation of TMR sites in patient 1 confirmed successful reinnervation, evident by nerve fascicle continuity and eventual integration of the transferred nerve into the target muscle. Conversely, the ultrasound of patient 2 showed discontinuity of the nerve fascicles, neuroma formation, and muscle atrophy in all three sites of nerve transfer, suggesting an unsuccessful procedure and poor funct...
Source: Skeletal Radiology - February 10, 2024 Category: Radiology Source Type: research
Superior metal artifact reduction of tin-filtered low-dose CT in imaging of lumbar spinal instrumentation compared to conventional computed tomography
ConclusionTin-filtered LD-CT with 60% dose saving performs comparable to standard CT in detection of pathology and surgery related complications after lumbar spinal instrumentation, and shows superior metal artifact reduction. (Source: Skeletal Radiology)
Source: Skeletal Radiology - February 10, 2024 Category: Radiology Source Type: research
MRI features of benign peripheral nerve sheath tumors: how do sporadic and syndromic tumors differ?
ConclusionsAlthough syndrome-related and sporadic schwannomas and neurofibromas overlap in their anatomic, diffusion and perfusion features, signal heterogeneity and presence of multiple lesions along a nerve are differentiating characteristics of syndrome-related tumors. (Source: Skeletal Radiology)
Source: Skeletal Radiology - February 10, 2024 Category: Radiology Source Type: research
Coefficient of variation of T2-weighted MRI may predict the prognosis of malignant peripheral nerve sheath tumor
ConclusionThe CV value of the signal intensity of heterogenous MPNSTs MR T2-weighted images is an independent predictor of patients ’ OS. (Source: Skeletal Radiology)
Source: Skeletal Radiology - February 10, 2024 Category: Radiology Source Type: research
Quantitative assessment of anterior talofibular ligament quality in chronic lateral ankle instability using magnetic resonance imaging T2* value
ConclusionMRI T2* values in patients with CLAI were higher than those in healthy participants, and the T2* ratio correlated with TTA, suggesting that T2* values are promising for quantitative assessment of ATFL quality preoperatively. (Source: Skeletal Radiology)
Source: Skeletal Radiology - February 10, 2024 Category: Radiology Source Type: research
Association of plexiform and diffuse neurofibromas with malignant peripheral nerve sheath tumor in NF I patients: a whole-body MRI assessment
ConclusionThis study suggests the absence of a predisposition for development of MPNST from pNFs and dNFs in the setting of NF1. As such, these lesions may not need special surveillance compared to discrete peripheral nerve sheath tumors. (Source: Skeletal Radiology)
Source: Skeletal Radiology - February 10, 2024 Category: Radiology Source Type: research
Statin use and longitudinal changes in quantitative MRI-based biomarkers of thigh muscle quality: data from Osteoarthritis Initiative
ConclusionsStatin use is associated with a slight decrease in MRI-based measures of thigh muscle quality over 4 years. However, considering statins ’ substantial cardiovascular benefits, these slight muscle changes may be relatively less important in overall patient care. (Source: Skeletal Radiology)
Source: Skeletal Radiology - February 10, 2024 Category: Radiology Source Type: research
Dynamic assessment of scapholunate ligament status by real-time magnetic resonance imaging: an exploratory clinical study
ConclusionReal-time MRI may improve the functional diagnosis of SLL insufficiency and aid therapeutic decision-making by revealing dynamic forms of dissociative instability within the proximal carpus. Static MRI best differentiates SLL-injured wrists at 5 °–15° of ulnar abduction. (Source: Skeletal Radiology)
Source: Skeletal Radiology - February 10, 2024 Category: Radiology Source Type: research
Evaluation of the association between osteoporotic vertebral compression fractures and psoas major/paraspinal muscle mass and ADC measured on MRI
ConclusionPsoas major and paraspinal muscle areas at the L3 level and the mean apparent diffusion coefficient value of non-fractured vertebrae from the Th12 to L5 level were associated with osteoporotic vertebral compression fractures. This may contribute to detecting the potential risk of healthy individuals developing osteoporotic vertebral compression fractures. (Source: Skeletal Radiology)
Source: Skeletal Radiology - February 10, 2024 Category: Radiology Source Type: research
Magnetic resonance imaging features for differentiating tuberculous from pyogenic spondylitis: a meta-analysis
ConclusionInvolvement of ≥ 2 vertebral vertebral bodies, soft tissue attribution, thin and regular abscess wall, vertebral collapse, and kyphosis were MRI features more common in tuberculous spondylitis, while disc signal change and height loss were more common in pyogenic spondylitis. (Source: Skeletal Radiology)
Source: Skeletal Radiology - February 10, 2024 Category: Radiology Source Type: research
Direct MR arthrography of the hip joint: anterior approach without imaging guidance
ConclusionHip dMRA through anterior injection guided by anatomical references is an effective and safe alternative for patients with suspected intra-articular pathology. (Source: Skeletal Radiology)
Source: Skeletal Radiology - February 10, 2024 Category: Radiology Source Type: research
Decreased rotator cuff muscle cross-sectional areas in subjects with adhesive capsulitis: a study comparing male and female subjects
ConclusionDecreased RC muscle CSAs were present in AC subjects with ≥ 6 months of symptom duration, with decreased SSC and total CSAs in male and female subjects, and decreased SSP CSA in males. (Source: Skeletal Radiology)
Source: Skeletal Radiology - February 10, 2024 Category: Radiology Source Type: research
MRI radiomics for hamstring strain injury identification and return to sport classification: a pilot study
ConclusionThis pilot study demonstrated that radiomics features from hamstring muscles are related to injury and have the potential to predict RTS. (Source: Skeletal Radiology)
Source: Skeletal Radiology - February 10, 2024 Category: Radiology Source Type: research