Objective: The present study aims to perform a reproducibility study of the clivus-canal angle (CCA), Welcker's basal angle (WBA), and the distance from the odontoid process to Chamberlain's line (DOCL) on magnetic resonance imaging (MRI).
Materials And Methods: Two medical students and two radiologists respectively evaluated 100 and 50 consecutive MRI scans of adult skulls, selected randomly. Each examiner, working independently and blinded to the previous results, performed readings for each patient on two different occasions. Measurements were performed in T1-weighted sequences acquired in the midsagittal plane. The levels of intraobserver reproducibility and interobserver agreement were evaluated by calculating the intraclass correlation coefficients (ICCs) and the corresponding 95% confidence intervals.
Results: The mean values obtained by the examiners were 150º for the CCA, 130º for the WBA, and 2.5 mm for the DOCL. The ICC for interobserver agreement was 0.980, 0.935, and 0.967, for the CCA, WBA, and DOCL, respectively, for the students, compared with 0.977, 0.941, and 0.982, respectively, for the radiologists, and 0.980, 0.992, and 0.990, respectively, for all of the examiners together. In the analysis of intraobserver agreement, the ICC ranged from 0.929 to 0.959 for the CCA, from 0.918 to 0.964 for the WBA, and from 0.918 to 0.981 for the DOCL.
Conclusion: The measurement of the CCA, WBA, and DOCL appears to show excellent intraobserver reproducibility and interobserver agreement on MRI.
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http://dx.doi.org/10.1590/0100-3984.2019.0068 | DOI Listing |
Ann Surg Oncol
December 2024
Department of Colon and Rectal Surgery, The University of Texas MD Anderson Cancer Center, Houston, USA.
Background: The Peritoneal Cancer Index (PCI), calculated intraoperatively, has previously yielded mixed results when correlated with computed tomography. This study aimed to quantify variation in this scoring method comparing radiologists' and surgeons' radiologic PCI (rPCI) assessment.
Methods: The rPCI of 104 patients treated at a single institution for peritoneal carcinomatosis was calculated by an abdominal radiologist and a surgeon.
Arch Orthop Trauma Surg
December 2024
University Hospital Regensburg, Regensburg, Germany.
Introduction: Patellar fractures are rare at 1% incidence of all fractures. However, they can cause significant functional impairments due to the patella's role in knee joint extension. Current scoring systems lack objectivity in assessing patellar healing.
View Article and Find Full Text PDFTomography
December 2024
Centre for Research and Development, Uppsala University, Region Gävleborg, SE 801 88 Gävle, Sweden.
Background: This study aimed to assess the interobserver variability of semi-automatic diameter and volumetric measurements versus manual diameter measurements for small lung nodules identified on computed tomography scans.
Methods: The radiological patient database was searched for CT thorax examinations with at least one noncalcified solid nodule (∼3-10 mm). Three radiologists with four to six years of experience evaluated each nodule in accordance with the Fleischner Society guidelines using standard diameter measurements, semi-automatic lesion diameter measurements, and volumetric assessments.
J Palliat Med
December 2024
Palliative Care Service, Catalan Institute of Oncology, L'Hospitalet de Llobregat, Barcelona, Spain.
The needs of patients living with malignant neoplasm, and those of their families and care partners, require a multidimensional and interdisciplinary approach. By systematically assessing these needs with validated tools, healthcare professionals can identify and monitor therapeutic objectives, interventions, and results. At the Catalan Institute of Oncology (ICO), we set out to update the ICO Toolkit-a set of instruments for assessing the physical, emotional, and social needs of palliative care patients.
View Article and Find Full Text PDFAustralas J Dermatol
December 2024
Department of Medical Area, Institute of Dermatology, University of Udine, Udine, Italy.
Introduction: Ultraviolet-based dermoscopy may support the recognition of scabies, yet neither accuracy analyses nor data on skin of colour are available. The aim of this multicentric observational retrospective was to investigate the diagnostic accuracy of polarised and ultraviolet-induced fluorescence (UVF) dermoscopic examination in both fair and dark skin, also assessing possible differences according to the skin tone.
Methods: Consecutive patients with a diagnosis of scabies were eligible.
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