Analysis of Landing Error Scoring System during Drop Vertical Jump on Anterior Cruciate Ligament Injury Risk Factors in Female Ballet Dancers and Female Soccer Players / 대한스포츠의학회지

The incidence of anterior cruciate ligament (ACL) injuries among female ballet dancers is much lower than among female soccer players, there is currently little research examining the landing error scoring system (LESS) of female ballet dancers and female soccer players. The purpose of this study was to investigate the LESS during drop vertical jump on ACL injury risk factors in female ballet dancers and female soccer players. Thirteen professional female ballet dancers and elite female soccer players participated in the study. Independent sample t-test was used to compare the LESS score between the groups with Bonferroni collection. The elite female soccer player group showed significantly higher stance width-wide, foot position-toe out, symmetric initial foot contact, overall impression and total LESS score than those of the professional ballet dancers.

MR Findings of Lipold Pneumonia: Report of Two Cases

Exogenous lipold pneumonia is an unusual disease resulting from aspiration of oil particles. A history of oil ingestion strongly suggests the diagnosis, but the radiological presentation varies from mild perihilar consolidation to diffuse and extensive bilateral involvement, particularly of the posterior basal segment of both lower lung(l). Since magnetic resonance(MR) provides greater contrast resolution than CT, it offers the potential for tissue characterization. In particular, fatty tissue and lipid containing substances are known to have high signal intensities on T1- and T2-weighted spin-echo (SE) images. We report MR findings in two case of exogenous lipold pneumonia caused by ingestion of shark liver oil(Squalene).

Streak artifacts on kidney CT:Ionic vs nonionic contrast media

The authors reviewed findings of enhanced abdominal computed tomographic (CT) scans to the difference between a higher dose of conventional ionic contrast media(iothalamate meglumine) and a lower dose of a new, nonionic contrast material (ioversol). One hundred adult patients were divided into two groups. Each group consisted of 50 patients. Iothalamate meglumine and ioversol were intravenously administered in each group. The ratio of the male to female in the former was 28.22, and the latter 29:21. We examine the degree of renal streak artifact and measure the Hounsfield number of urine in renal collecting system. There were significant differences of the degree of the streak artifact depending upon the osmolality of contrast media used and that was related with urine CT number (P value<0.005). We authors conclude that nonionic low osmolar contrast media is prone to cause streak artifacts and distortions of renal image than conventional ionic high osmolar contrast media.