The data suggested that local immunotherapy with IL-2 in hosts supplemented with Se may represent an effective modality of treatment for the prevention of recurrences at the site of conventionally treated primary tumors, including tumors that do not express IL-2 receptors.

No abstract

A new product for the direct visualization of cardiovascular and peripherial arterial systems has been investigated and developed using a miniature 1.0 mm diameter fiber optic system.The article presents documentation of the major design parameters that should be considered in angioscope instrument development.The instrument described incorporates a concentric image system /outer shaft design for truer imaging, a working diameter of 1.5 mm, affording visualization to approximately 80% of the coronary arteries, a depth of field experimentally honed to 2mm -25mm, and a system resolution of over 60 L /mm within the typical inspection range. Abst ractA new product for the direct visualization of cardiovascular and peripherial arterial systems has been investigated and developed using a miniature 1.0 mm diameter fiber optic system. The article presents documentation of the major design parameters that should be considered in angioscope instrument development. The instrument described incorporates a concentric image system/outer shaft design for truer imaging, a working diameter of 1.5 mm, affording visualization to approximately 80% of the coronary arteries, a depth of field experimentally honed to 2mm -25mm, and a system resolution of over 60 L/mm within the typical inspection range.