1,720,965 research outputs found
Contrast-enhanced ultrasound performance in predicting blunt splenic injuries requiring only observation and monitoring
No full textUtilizzo dell'ecografia nella diagnosi di pneumotorace nel politraumatizzato in sala emergenza: confronto con la radiologia convenzionale
No full textLa radiologia convenzionale può sottostimare la diagnosi di PNX. Lo studio valuta l'efficacia dell'ecografia toracica nella diagnosi di PNX in sala emergenz
Comparison of point shear wave elastography and transient elastography in the evaluation of patients with NAFLD
No full textPurpose To compare point shear wave elastography (pSWE, ElastPQ (R)) and transient elastography (TE) with Liver Biopsy in order to evaluate fibrosis stage in non-alcoholic fatty liver disease (NAFLD). Methods Our prospective study from September 2017 to October 2020 included 50 consecutively enrolled patients with NAFLD (52.2 +/- 13.0 years, 32 male). All patients underwent clinical evaluation, B-mode ultrasound, pSWE, TE and liver biopsy in a single evaluation. The clinical, laboratory and liver biopsy data were compared with liver stiffness (LS) measurement obtained with pSWE and TE. TE and pSWE diagnostic accuracy for the diagnosis of the different fibrosis stages were evaluated using the area under receiver operating characteristic curve (AUROC). Results Only fibrosis stage was independently associated with TE and pSWE. The median liver stiffness measurement for fibrosis stages F0, F1, F2, F3, and F4 using TE was 4.8 (4.7-6.1) kPa, 5.5 (4.4-7.3) kPa, 7.7 (6.1-9.1) kPa, 9.9 (8.8-13.8) kPa, and 20.2 kPa, respectively. The corresponding median liver stiffness measurement using pSWE was 4.2 (4.0-4.8) kPa, 4.7 (4.2-5.8) kPa, 5.1 (4.1-6.9) kPa, 8.5 (5.2-13.3), and 15.1 kPa, respectively. The AUROC of TE for diagnosis of fibrosis stage F1, >= F2, >= F3, and F4 were 0.795, 0.867, 0.927, and 0.990, respectively. The corresponding AUROC of pSWE was 0.717, 0.733, 0.908, and 1.000, respectively. No association was observed with other histological parameters. Conclusion TE was significantly better than pSWE for the diagnosis of fibrosis stage >= F2. No statistically significant differences were found between TE and pSWE AUROC of fibrosis stage >= F1, >= F3, and F4
2D shear wave elastography in evaluation of prognostic factors in breast cancer
No full textTo evaluate the reproducibility of the 2D shear wave elastography (2D-SWE) method and to identify the prognostic factors of breast lesions
Role of Contrast-Enhanced sonography in the evaluation of Axillary Lymph Nodes in Breast Carcinoma: A Monocentric Study
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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