| 摘要 |
<p>A CT scanner (10) and method are designed to scan a preselected portion of the lower abdomen with higher resolution and lower power. The scanner is constructed with a source (14) and detector array (16) designed to rotate about a rotation axis oriented substantially parallel to or coincident with the hips of the a patient so that X-rays do not have to pass through the pelvic bones to image the area of interest. Higher resolution can be achieved by using a detector array of the type used for digital radiography so that individual detectors can be much smaller than those used in conventional CT machines. A high resolution CT image can thus be used to detect the presence of prostatic cancer, by first injecting the patient with a material including a high contrast material for X-ray imaging and a material for binding the high contrast material to a specific biological site if present in the preselected portion of the lower abdomen of the patient; and generating a CT image of the preselected portion of the lower abdomen of the patient so as to generate an image of the preselected portion of the lower abdomen of the patient so as to image any of said high contrast material.</p> |
