Impaired fundic accommodation (FA) limits fundic relaxation and the ability to act as a reservoir for food. Assessing intragastric meal distribution (IMD) during gastric emptying scintigraphy (GES) allows for a simple measure of FA. The 3 goals of this study were to evaluate trained readers' (nuclear medicine and radiology physicians) visual assessments of FA from solid-meal GES; develop software to quantify GES IMD; and correlate symptoms of gastroparesis with IMD and gastric emptying. After training to achieve a consensus interpretation of GES FA, 4 readers interpreted FA in 148 GES studies from normal volunteers and patients. Mixture distribution and κ-agreement analyses were used to assess reader consistency and agreement of scoring of FA. Semiautomated software was used to quantify IMD (ratio of gastric counts in the proximal stomach to those in the total stomach) at 0, 1, 2, 3, and 4 h after ingestion of a meal. Receiver-operating-characteristic analysis was performed to optimize the diagnosis of abnormal IMD at 0 min (IMD) with impaired FA. IMD, GES, water load testing, and symptoms were then compared in 177 patients with symptoms of gastroparesis. Reader pairwise weighted κ-values for the visual assessment of FA averaged 0.43 (moderate agreement) for normal FA versus impaired FA. Readers achieved 84.0% consensus and 85.8% reproducibility in assessing impaired FA. IMD based on the division of the stomach into proximal and distal halves averaged 0.809 (SD, 0.083) for normal FA and 0.447 (SD, 0.132) ( < 0.01) for impaired FA. On the basis of receiver-operating-characteristic analysis, the optimal cutoff for IMD discrimination of normal FA from impaired FA was 0.568 (sensitivity, 86.7%; specificity, 91.7%). Of 177 patients with symptoms of gastroparesis, 129 (72.9%) had delayed gastric emptying; 25 (14.1%) had abnormal IMD Low IMD (impaired FA) was associated with increased early satiety ( = 0.02). FA can be assessed visually during routine GES with moderate agreement and high reader consistency. Visual and quantitative assessments of FA during GES can yield additional information on gastric motility to help explain patients' symptoms.

Spontaneous perirenal hemorrhage (SPH), also known as Wünderlich's syndrome, is a rare urological emergency. This article reviews the most common causes of SPH and the role of imaging in establishing the correct diagnosis and in guiding the appropriate therapy. A thorough understanding of underlying etiologies, imaging appearances, optimal imaging techniques, and follow-up protocols are crucial to recognize patients with SPH due to benign disease and avoid unnecessary nephrectomies.

Compared to GP-like patients, the pyloric histopathological findings of ICC loss and fibrosis are common in GP and predict a greater symptom score. These pathological findings might be considered as markers of "pyloric dysfunction" and explain delayed GE in GP.

Median arcuate ligament syndrome (MALS), otherwise called celiac artery compression syndrome (CACS), is an uncommon disorder that results from an anatomical compression of the celiac axis and/or celiac ganglion by the MAL. Patients typically present with abdominal pain of unknown etiology exacerbated by eating along with nausea, vomiting, and weight loss. MALS is a diagnosis of exclusion that should be considered in patients with severe upper abdominal pain, which does not correlate with the objective findings. The cardinal feature which is elicited in the diagnosis of MALS relies on imaging studies of the celiac artery, demonstrating narrowing during expiration. The definitive treatment is the median arcuate ligament’s surgical release to achieve surgical decompression of the celiac plexus by division of the MAL. This article describes our experience with this entity, focusing on symptom presentation, diagnostic challenges, and management, including long-term follow-up in four cases.