Differential X-ray method and apparatus
Real-time digital X-ray subtraction imaging
Real-time digital X-ray time interval difference imaging
Tomographic imaging system Patent #: 4212062
ApplicationNo. 06/142188 filed on 04/21/1980
US Classes:600/407, Detecting nuclear, electromagnetic, or ultrasonic radiation378/98.12, With image subtraction or addition382/130Producing difference image (e.g., angiography)
ExaminersPrimary: Krass, Errol A.
Attorney, Agent or Firm
International ClassesG06T 5/50 (20060101)
H04N 5/32 (20060101)
AbstractIn a radiographic digital subtraction system utilizing a contrast agent for enhancing a difficult-to-image anatomic region of interest, a method of selecting a superior difference image. The difference image selected represents the differential between a pair of digitized radiographic images selected from a series of such images acquired before and after the contrast appears in the region of interest during a dynamic imaging study.