Siemens Healthcare Gmbh

Siemens Medical Solutions Usa, Inc.

Michael J Keller

John Baumgart

Scott Mizer

Martin Trini

Wei Qu

Paul L Ruflin

Michael V Kaminski

Robert Armstrong

Sukhveer Singh

A system and method includes reception of first two-dimensional projection images of a patient volume, each of the first two-dimensional projection images having been acquired from substantially a respective one of a plurality of projection angles during presence of at least a portion of contrast medium in arteries within the patient volume, reception of second two-dimensional projection images of the patient volume, each of the second two-dimensional projection images having been acquired from substantially a respective one of the plurality of projection angles during presence of at least a portion of the contrast medium in veins within the patient volume, generation, for each of the plurality of projection angles, of a composite two-dimensional image based on one of the first two-dimensional projection images acquired from substantially the projection angle and one of the second two-dimensional projection images acquired from substantially the projection angle, generation of a three-dimensional image based on the generated composite two-dimensional images, and display of an image based on the three-dimensional image.

System for acquiring a three-dimensional image of arteries and veins

End-diastolic and end-systolic image frames are automatically selected on a real-time basis from a sequence of X-ray ventricular angiogram images by modeling the angiogram images by a dynamic graphical model and estimating a posterior probability density of the ventricular area in each angiogram image frame using Bayesian probability density propagation and adaptive background modeling. Then, a variation curve plot of expectation values of the posterior probability density of the ventricular area of each angiogram image frame is generated in which peaks and valleys in the variation curve correspond to end-diastolic and end-systolic angiogram image frames, respectively.

System and method for automatic detection of end of diastole and end of systole image frames in X-ray ventricular angiography

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Algonquin, IL, United States of America

Michael J Keller