The opportunity addressed by the proposal is to develop an optical force trap micromanipulator suitable for everyday use in a biology laboratory. an optical force trap uses light from a laser to exert forces and to move microscopic sized objects. because they use light, they are able to manipulate… More

Dual energy imaging has the potential to add new and powerful diagnostic capabilities to a medical x-ray examination. unlike an ordinary x-ray image, dual energy image data can be processed to give information about the chemical composition of body tissues. this new information can be used, for… More

The increased emphasis on mass screening for early detection of cancer has created a demand for effective quality assurance of medical radiography equipment. This is particularly true in mammography where indications of cancer are subtle and the image quality varies strongly with the x-ray… More

The specific problem addressed by the proposed research is the development of a scanner for storage phosphor plates with significantly better positional and intensity accuracy than the current state of the art. The new scanner will be based on the use of a "scanning head" scanning approach which is… More

DESCRIPTION (provided by applicant): The specific aim of our proposed research is to develop an improved, computer-assisted detection and characterization (CAD) system for lung nodules in chest x-ray images. The overall objective is to improve the performance of chest radiography so it will provide… More

DESCRIPTION (provided by applicant): The long-term objective of our proposed research is to improve the early detection of lung cancer with chest radiography. Because chest radiography is used for such a wide variety of medical conditions, it is, by far, the most widely used diagnostic imaging… More