Time Course of Focal Lesions in Hypoglycemia

Keeping time: effects of focal frontal lesions.

This study examined the performance of 32 normal subjects and 39 patients with focal lesions of the frontal lobes on two simple timing tasks-responding in time with a tone that regularly repeated at a rate of once every 1.5s, and then maintaining the same regular response rhythm without any external stimulus. The hypothesis was that lesions to the right prefrontal cortex would disrupt timing pe...

Focal Liver Lesions in Children

Approaching focal liver lesions.

Focal liver lesions are defined as solid or liquid-containing masses foreign to the normal anatomy of the liver that may be told apart from the latter organ using imaging techniques. Their nature is widely varying, and may range from benign lesions with an indolent clinical course to aggressive malignant tumors (Table I). They are common findings as a result of the ever increasing use of imagin...

Segmentation of Focal Brain Lesions

Focal brain lesions are a consequence of head trauma, cerebral infarcts or intracerebral hemorrhages. In clinical practice, magnetic resonance imaging (MRI) is commonly used to reveal them. The segmentation task consists of finding the lesion borders. This problem is non-trivial because the lesion may be connected to other intracranial compartments with similar intensities. A new method for the...

Ultrasound of focal liver lesions