peridiaphragmatic

peridiaphragmatic

(pĕr-ē-dī′ă-frăg-mă″tĭk)
Pert. to areas near the diaphragm.
References in periodicals archive ?
CT findings indicative of rupture include direct visualization of injury, segmental diaphragm nonvisualization, intrathoracic herniation of viscera, "collar sign," and peridiaphragmatic active contrast extravasation [11-13].
A CT scan, followed by oral iodinated contrast administration, is the best method to determine whether the sac content is intestinal and in this case to identify the intestinal type Diaphragmatic: segmental diaphragm nonvisualization, intrathoracic herniation of viscera, "collar sign," and peridiaphragmatic active contrast extravasation Giant colon Cavity filled with gas, fluid, or stool, with a diverticulum thin regular wall and no contrast enhancement except in the presence of inflammation; wall may contain calcifications in case of chronic inflammation Gastrointestinal Mass with a soft tissue density with central stromal areas of lower density if necrosis is present and tumors (GIST) occasionally appear as fluid-fluid levels.
The most common of these include visualization of diaphragmatic defects, collar sign, dependent viscera sign, diaphragmatic thickening and peridiaphragmatic contrast extravasation.
To distinguish anterior peridiaphragmatic lymph nodes from pleural thickening along the costophrenic sulci, multiplanar imaging was used.
A paired t-test was used to determine if the measured mean SUV for anterior peridiaphragmatic and peri-IVC lymph nodes was significantly different from the combined mean SUV of lymph nodes far from the diaphragm.
The anterior peridiaphragmatic nodes were affected in all 11 patients (100%).
There was no significant statistical difference between mean FDG uptake in anterior peridiaphragmatic and peri-IVC nodal uptake (SUV, 2.3 [+ or -] 1.1) compared to combined mean FDG uptake of other high-attenuation nodal groups far from the diaphragm (SUV, 2.4 [+ or -] 1.2), with P = 0.83.
In our study, we observed that high-attenuation intrathoracic lymph nodes are common following talc pleurodesis and occur in the anterior peridiaphragmatic, paracardiac, internal mammary, and peri-IVC nodal groups, which are part of the lymphatic pathway for parietal pleural drainage [7].
Because all of the lymph nodes were subcentimeter, drawing ROIs and obtaining accurate attenuation values or SUVs was challenging, particularly for anterior peridiaphragmatic and peri-IVC lymph nodes, which are in regions susceptible to misregistration and volume and count averaging related to respiration.
The existence of lung pathology--which is often disproportionate in the peridiaphragmatic zones--may interfere with this compensation and offset any advantage relating to a favorable ventilation gradient.