Classification of Polar Maps from Cardiac Perfusion Imaging with Graph-Convolutional Neural Networks.

Myocardial perfusion imaging is a non-invasive imaging technique commonly used for the diagnosis of Coronary Artery Disease and is based on the injection of radiopharmaceutical tracers into the blood stream. The patient's heart is imaged while at rest and under stress in order to determine its capacity to react to the imposed challenge. Assessment of imaging data is commonly performed by visual inspection of polar maps showing the tracer uptake in a compact, two-dimensional representation of the left ventricle.

Comparison of azithromycin and ceftriaxone for the treatment of chancroid.

We conducted a randomized, unblinded, prospective study designed to determine the efficacy of single-dose azithromycin for the treatment of chancroid. Men and women 16 years of age and older who had darkfield-negative genital ulcers that were clinically suspected to be caused by Haemophilus ducreyi and who attended urban sexually transmitted disease clinics or presented to hospital emergency departments were enrolled in the study. Patients were randomized to receive 250 mg of ceftriaxone im or 1 g of azithromycin orally, both given as a single dose.

Echinococcal cyst of the liver: diagnosis and surgical management.

The encysted larval form of Echinococcus granulosus may infest man as an incidental host. The liver is the organ most commonly involved, but the lung and brain may be affected. The disease is endemic where sheep are raised with dogs in a pastoral environment.

Role of apical tubules in endocytosis in nonciliated cells of the ductuli efferentes of the rat: a kinetic analysis.

The apical region of nonciliated cells of the ductuli efferentes of the rat contains tubular coated pits (TCP) connected to the apical plasma membrane, apical tubules (AT) which occasionally show a partial coat, and endosomes which are often continuous with one or more apical tubules. To investigate the formation and fate of TCP and AT, a quantitative analysis was performed on the labeling indices of these structures at various time intervals (0.5-120 min) after a single injection of a tracer, cationic ferritin (CF), into the lumen of the rete testis.