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Srinivasan Vedantham

UMassMed Faculty Page


Title: Apparatus and Method for X-Ray Contrast Imaging. UMMS12-39; Patent Pending. 

  • The invention pertains to an apparatus and method for x-ray phase contrast imaging that uses a scanning interferometer for the x-ray source, source grating, phase grating and detector grating, with the object being imaged stationary.  Importantly, the apparatus and method does not require movement of the phase or detector grating relative to each other, often referred to as phase-stepping.  

Title: TOMOSYNTHESIS IMAGING. UMMS11-05; Patent 8,817,947

  • This patented technology discloses a system for providing higher quality radiographic, stereoscopic and tomographic images with reduced x-ray dose and operating time to improve patient care. The apparatus includes a high-fluence rate x-ray source and a plurality of satellite x-ray sources operating at lower fluence rate than the high-fluence rate source. A controller controls the operation and locations of the sources, and the operation of a detector. The method provides procedures in which the operation of the high-fluence source and the satellite sources are individually controlled as to location and orientation relative to the object of interest. In some operations, one satellite source may be operating while another satellite source may be repositioning. 


Innovation TopicsDiagnosticsImagingX-rayMedical Devices