Search results
Results from the WOW.Com Content Network
Mediastinal shift is an abnormal movement of the mediastinal structures toward one side of the chest cavity.A shift indicates a severe imbalance of pressures inside the chest. [1]
A) Normal chest radiograph; B) Q fever pneumonia affecting the right lower and middle lobes. Note the loss of the normal radiographic silhouette (contour) between the affected lung and its right heart border as well as between the affected lung and its right diaphragm border. This phenomenon is called the silhouette sign: Differential diagnosis
The mediastinum (from Medieval Latin: mediastinus, lit. 'midway'; [2] pl.: mediastina) is the central compartment of the thoracic cavity.Surrounded by loose connective tissue, it is a region that contains vital organs and structures within the thorax, namely the heart and its vessels, the esophagus, the trachea, the vagus, phrenic and cardiac nerves, the thoracic duct, the thymus and the lymph ...
Aortic unfolding is an abnormality visible on a chest X-ray, that shows widening of the mediastinum which may mimic the appearance of a thoracic aortic aneurysm. [1]With aging, the ascending portion of the thoracic aorta increases in length by approximately 12% per decade, whereas the diameter increases by just 3% per decade.
Cardiomegaly (sometimes megacardia or megalocardia) is a medical condition in which the heart becomes enlarged. It is more commonly referred to simply as "having an enlarged heart".
Laplace's law for a sphere states wall stress (T) is proportionate to the product of the transmural pressure (P) and cavitary radius (r) and inversely proportionate to wall thickness (W): In response to the pressure overload left ventricular wall thickness markedly increases—while the cavitary radius remains relatively unchanged. These ...
The costomediastinal recess is a potential space at the border of the mediastinal pleura and the costal pleura.It assists lung expansion during deep inspiration, although its role is not as significant as the costodiaphragmatic recess, which has a greater volume.
This diagnostic test examines different factors such as rotations, contours, and the direction of the cardiac axis of the heart. [11] Although the use of electrocardiograms are commonly used in clinical settings by many providers, vectorcardiograms are able to be more precise due to its ability to detect and identify the location of myocardial ...