The aim of our study was to assess the diagnostic usefulness of the gray level parameters to distinguish osteolytic lesions using radiological images. Materials and Methods. A retrospective study was carried out. A total of 76 skeletal radiographs of osteolytic metastases and 67 radiographs of multiple myeloma were used. The cases were classified into nonflat (MM1 and OL1) and flat bones (MM2 and OL2). These radiological images were analyzed by using a computerized method. The parameters calculated were mean, standard deviation, and coefficient of variation (MGL, SDGL, and CVGL) based on gray level histogram analysis of a region-of-interest. Diagnostic utility was quantified by measurement of parameters on osteolytic metastases and multiple myeloma, yielding quantification of area under the receiver operating characteristic (ROC) curve (AUC). Results. Flat bone groups (MM2 and OL2) showed significant differences in mean values of MGL (P = 0.048) and SDGL (P = 0.003). Their corresponding values of AUC were 0.758 for MGL and 0.883 for SDGL in flat bones. In nonflat bones these gray level parameters do not show diagnostic ability. Conclusion. The gray level parameters MGL and SDGL show a good discriminatory diagnostic ability to distinguish between multiple myeloma and lytic metastases in flat bones.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4099227 | PMC |
| http://dx.doi.org/10.1155/2014/264836 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Co-Designing a Digital Brief Intervention to Reduce the Risk of Prescription Opioid-Related Harm Among People With Chronic Noncancer Pain: Qualitative Analysis of Patient Lived Experiences.
JMIR Form Res
January 2025
Faculty of Medicine, The University of Queensland, Brisbane, Australia.
Background: Opioid medications are important for pain management, but many patients progress to unsafe medication use. With few personalized and accessible behavioral treatment options to reduce potential opioid-related harm, new and innovative patient-centered approaches are urgently needed to fill this gap.
Objective: This study involved the first phase of co-designing a digital brief intervention to reduce the risk of opioid-related harm by investigating the lived experience of chronic noncancer pain (CNCP) in treatment-seeking patients, with a particular focus on opioid therapy experiences.
Differential Neuronal Activation of Nociceptive Pathways in Neuropathic Pain After Spinal Cord Injury.
Cell Mol Neurobiol
January 2025
Department of Neurology, Tongji Medical College, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, 430030, China.
Neuropathic pain, a prevalent complication following spinal cord injury (SCI), severely impairs the life quality of patients. No ideal treatment exists due to incomplete knowledge on underlying neural processes. To explore the SCI-induced effect on nociceptive circuits, the protein expression of c-Fos was analyzed as an indicator of neuronal activation in a rat contusion model exhibiting below-level pain.
View Article and Find Full Text PDFCortical Neurotransmitters Measured by Magnetic Resonance Spectroscopy Change Following Traumatic Brachial Plexus Injury.
J Brachial Plex Peripher Nerve Inj
January 2025
School of Health Sciences, Manchester Academic Health Science Centre, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom.
GABA (γ-aminobutyric acid) is the major inhibitory neurotransmitter in the brain. In response to injury within the central nervous system, GABA promotes cortical plasticity and represents a potential pharmacological target to improve functional recovery. However, it is unclear how GABA changes in the brain after traumatic brachial plexus injuries (tBPIs) which represents the rationale for this pilot study.
View Article and Find Full Text PDFPorphyric encephalopathy in a 15-year-old girl: A case report.
SAGE Open Med Case Rep
January 2025
College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA.
A 15-year-old girl presented with new onset tonic-clonic seizures, encephalopathy, abdominal pain, and hypertension with a history of weight loss and emesis. Brain magnetic resonance imaging scans showed diffuse, bilateral cortical and subcortical gray and white matter signal abnormalities. Electroencephalography showed background slowing and disorganization.
View Article and Find Full Text PDFTrends in Formulary Restrictions for Long-Acting Injectable Antipsychotic Medications Among Medicare Drug Plans, 2019-2023.
Psychiatr Serv
January 2025
Department of Psychiatry and Behavioral Neuroscience (Bunting, Gray), Department of Pharmacy (Gray), and Pritzker School of Medicine (Chalmers), University of Chicago, Chicago; Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta (Cotes); Department of Psychiatry, University of Washington, Seattle (Chalmers); Department of Health Management and Policy, School of Public Health, University of Michigan, Ann Arbor (Nguyen).
Objective: Long-acting injectable antipsychotics (LAIAPs) enable safe and effective long-term management of chronic psychotic disorders but are underused in clinical practice. The authors examined whether Medicare formulary restrictions (prior authorization [PA] or step therapy) impose barriers to LAIAP uptake.
Methods: The authors analyzed formulary restrictions and patient cost-sharing for several LAIAPs and estimated the percentage of plans (N=2,494 were available per year) applying formulary restrictions.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!