BACKGROUND AND PURPOSE:Hippocampal malrotation (HIMAL) is a failure of hippocampal inversion that occurs during normal fetal development and has been seen on MR imaging examinations of people with epilepsy, but it has not been studied in patients without epilepsy. We intended to evaluate the prevalence of HIMAL in MR imaging examinations of patients without seizures to better understand the significance of HIMAL in the population with seizure.

Objective We aimed to determine the prevalence of hydronephrosis (HN) in patients who underwent renal sonography for new onset acute kidney injury (AKI) and to identify clinical factors predictive of HN. In patients with HN, we sought to investigate how routine renal US affects patient management, including performance of interventional procedures. Methods A retrospective chart review identified 274 adults with AKI who underwent renal ultrasound (US) at an urban teaching hospital from January 2011 through July 2011. The prevalence of HN was determined. Electronic medical records were reviewed for co-morbidities, including risk factors for HN such as pelvic mass, prior renal or pelvic surgery and neurogenic bladder, and for subsequent interventions and outcomes. Results US demonstrated HN in 28 patients (10%); 5 (18%) had subsequent interventions. In a multivariable logistic regression model with the outcome being HN, all considered risk factors, pelvic mass, prior renal or pelvic surgery and neurogenic bladder, were significantly associated with HN (odds ratio 6.4 (95% confidence interval 2.7, 15.4) and p < 0.001) when adjusting for age and diabetes mellitus. Diabetes had a negative predictive value for HN. No diabetic patients younger than 85 years and without clinical risk factors had HN. Conclusions HN is infrequently seen on sonograms in hospitalized patients with AKI who lack risk factors for urinary tract obstruction. Deferral of the US pending a trial of medical management is safe and will reduce medical costs. Adoption of clinical guidelines to assess patients’ risk levels for HN is critical to avoid unnecessary imaging.

causing increased secretion of electrolytes and water to the intestine.The aim of the study was to characterize the effect an upregulated GC-C receptor has on the gastrointestinal tract using abdominal ultrasound.Methods: 23 patients with FGDS (14 female) were examined with abdominal ultrasonography in a fasting state, and the results were compared with those from a healthy population (n5 122). A Logiq E9 ultrasound scanner with curvilinear (C1-5) and linear probes (9L) was used. Bowel wall thickness in the small and large intestine was measured and the number of fluid-filled small bowel loops counted using magnetic positioning navigation. General motility in the jejunum and ileum was registered according to a semiquantiative scale and described as propagating or non-propagating.The occlusive / non-occlusive contractions were counted.Results: The FGDS patients had significantly more fluid filled small bowel loops (median 9, 1-28) compared to healthy controls (median 0, 0-5), p, 0.001. Non-propagating contractions were seen in 8/16 and 18 /19 in the jejunum and ileum respectively. The wall thickness did not differ significantly from healthy subjects.Conclusions: A unique characteristic of FGDS is multiple, fluid-filled bowel loops with ineffective motility. Although patients with upregulated GC-C receptor may have an increased risk of CD, we did not find an overall increase in bowel wall thickness which is a common finding in inflammatory bowel diseases.Objectives: (1) The purpose of this educational exhibit is describe the imaging patterns of elastography in solid Abstracts S37