1,720,961 research outputs found
Magnetic resonance in the diagnosis of lesions of the carpal triangular fibrocartilage. The experience with 49 patients with chronic pain at the wrist
No full text
Quantitative MR imaging data in the evaluation of hepatic metastases during systemic chemotherapy
No full textMR imaging of hepatic masses:diagnostic significance of wedge-shaped areas of increased signal intensity surrounding the lesion
No full textMR imaging of hepatic masses: diagnostic significance of wedge-shaped areas of increased signal intensity surrounding the lesion
No full text
Evaluation of the pulmonary artery by cine MRI
No full textTwenty-four patients whose mediastinal (12 patients) and lung (12 patients) neoplasms were eventually verified were evaluated with cine MRI in addition to conventional methods (plain radiography, CT, MRI, and endoscopy). Using a 1.0 T system and gradient echo (FLASH repetition time 250-350 ms, echo time 12, flip angle 25-60-degrees) multislice pulse sequence, cine MRI was performed combined with cardiac gating. At the level of the pulmonary artery, the CT, spin echo (SE) MRI, and cine MRI findings were evaluated blindly by three groups of radiologists to determine whether the pulmonary artery was infiltrated or dynamically stenotic. Cine MRI allowed an overall diagnostic accuracy of 100% in comparison with SE MRI (91.6%) and CT (91.6%)
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
- …
