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Presentation of Case. Dr. Albert Yeh (Medicine): A 25-year-old man was admitted to this hospital because of abdominal pain, syncope, and hypotension. The patient had been well on the day of admission until, while lifting heavy boxes with a friend, he suddenly felt "a warm feeling" diffusely and had..

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Summary In the study of Zhang et al (1), tumor-bearing mice were vaccinated with magnetically labeled, tumor antigen-primed dendritic cells (DCs). After homing of these antigen-presenting cells to the draining lymph node (LN), it was shown that the iron oxide-induced decrease in LN magnetic resonance (MR) imaging signal intensity correlated with the observed tumor growth delay, suggesting that the degree of hypointensity can serve as a surrogate marker for the efficacy of tumor vaccination.

Since health care is becoming more and more patient centered, patient-reported outcomes such as quality of life (QOL) and health status (HS) are becoming increasingly important. The aim of this systematic review was to provide an overview of physical, psychological, and social domains of QOL and HS in postpartum women, and to assess which factors are associated with QOL and HS domains postpartum. A computerized literature search was performed using the PubMed, PsycINFO, and Cochrane databases. Studies were selected if the three domains of QOL or HS were measured in a (sub)group of postpartum women, by using validated standardized questionnaires...

OBJECTIVE: To evaluate the role of stone size in predicting urinary calculus composition using Hounsfield units on noncontrasted computed tomography (CT) scan. METHODS: A retrospective review was performed for all patients who underwent ureteroscopy or percutaneous nephrolithotomy during a 1-year period, had a stone analysis performed, and had CT imaging available for review. All CT scans were reviewed by a board-certified radiologist. Variables evaluated included age, sex, body mass index, stone size, stone location, Hounsfield units (HUs), and stone composition...

PURPOSE: The purpose of this study was to evaluate the computed tomography (CT) imaging characteristics of gastric schwannoma. METHODS: Eight cases of gastric schwannomas confirmed by surgery and pathology were retrospectively analyzed by CT. We reviewed the CT findings of gastric schwannomas for the following characteristics: tumor location, size, contour, margin, growth pattern, enhancement pattern, the presence or absence of necrosis, and perigastric lymph nodes...

OBJECTIVES: The objective of this study was to evaluate whether the use of automatically generated maps of bowel motility (motility mapping) in magnetic resonance imaging (MRI) leads to an increased detection rate of inflammatory bowel disease. MATERIALS AND METHODS: Fifty consecutive patients with suspected or known inflammatory bowel disease who underwent bowel MRI using a 1.5-T scanner were analyzed retrospectively. In addition to standard small bowel magnetic resonance protocol, a dynamic coronal T2-weighted sequence (dynamic MRI) was acquired...

OBJECTIVES: Mortality from abdominal abscesses ranges from 30% in treated cases up to 80% to 100% in patients with undrained or nonoperated abscesses. Various computed tomographic (CT) imaging features have been suggested to indicate infection of postoperative abdominal fluid collections; however, features are nonspecific and substantial overlap between infected and noninfected collections exists. The purpose of this study was to develop and validate a scoring system on the basis of CT imaging findings as well as laboratory and clinical parameters for distinguishing infected from noninfected abdominal fluid collections after surgery...

AIM: To evaluate the magnetic resonance (MR) imaging-MR cholangiopancreatographic (MRCP) findings of focal forms of autoimmune pancreatitis (AIP) to describe ductal involvement at diagnosis. METHODS: MR examinations of 123 patients affected by AIP were analysed. We included 26 patients who satisfied International Consensus Diagnostic Criteria and were suffering from focal AIP. Image analysis included: site of parenchymal enlargement, main pancreatic duct (MPD) diameter, MPD stenosis, stricture length, presence of upstream dilation within the stricture, signal intensity, and pancreatic enhancement...

OBJECTIVES: The purpose of this study was to determine the optimal cut-off value of lymph node size for diagnosing metastasis in gastric cancer with multidetector-row computed tomography (MDCT) after categorizing perigastric lymph nodes into three regions. METHODS: The study included 90 gastric cancer patients who underwent gastrectomy. The long-axis diameter (LAD) and short-axis diameter (SAD) of all visualized lymph nodes were measured with transverse MDCT images...

OBJECTIVE: The purpose of this article is to review the most common data analysis methods encountered in radiology-based studies. Initially, description of variable types and their corresponding summary measures are provided; subsequent discussion focuses on comparison of these summary measures between groups, with a particular emphasis on regression analysis. CONCLUSION: Knowledge of statistical applications is critical for radiologists to accurately evaluate the current literature and to conduct scientifically rigorous studies...