Items tagged “diverticulum”
4 results found
Article
Zenker diverticulum
Zenker diverticulum, also known as a pharyngeal pouch, is a posterior outpouching of the hypopharynx, just proximal to the upper esophageal sphincter through a weakness in the muscle layer called the Killian dehiscence.
Epidemiology
More than 50% of the affected patients present in 60-80 years...
Article
Urethral diverticulum
Urethral diverticula, or urethroceles, are focal outpouchings of the urethra. They should not be confused with a ureterocele of the distal ureter.
Epidemiology
Urethral diverticula occur far more frequently in women than in men and are estimated to occur in 1-6% of women, especially those with...
Article
Calyceal diverticulum
Calyceal diverticula, also known as pyelocalyceal diverticula, are outpouchings of the renal calyx or pelvis into the renal cortex. These diverticula are lined with transitional cell epithelium.
Epidemiology
Relatively uncommon, historically seen in 0.21% to 0.60% of intravenous urograms (IVU)...
Article
Dimensionless index (DI)
Dimensionless index (DI) is the ratio of the velocity-time integral of the left ventricular outflow tract (LVOT-VTI) to that of the aortic valve jet (AV VTI)1-2.
Dimensionless index (DI) = LVOT VTI / AV VTI
Usage
Dimensionless index is a classic marker of severity in aortic stenosis that does...