Registration of scanning data acquired from different patient positions

Abstract

A system and method are provided for generating a three-dimensional visualization image of an object such as an organ using volume visualization techniques and exploring the image using a guided navigation system that allows the operator to travel along a flight path and to adjust the view to a particular portion of the image of interest in order, for example, to identify polyps, cysts or other abnormal features in the visualized organ; where imaging data sets are acquired using conventional two-dimensional scans of the object in both a supine and prone orientation, and correspondence between the respective data sets is determined to permit jumping from one visualization orientation to the other while remaining at the same virtual location within the organ.

Description

CROSS-REFERENCE TO RELATED APPLICATION [0001] This application claims the benefit under 35 U.S.C. § 365(c) of PCT International Application Designating the United States, Serial No. PCT / US02 / 37387, entitled “REGISTRATION OF SCANNING DATA ACQUIRED FROM DIFFERENT PATIENT POSITIONS”, and filed Nov. 21, 2002, which is incorporated herein by reference in its entirety; and which, in turn, claims the benefit under 35 U.S.C. § 119(e) of U.S. Provisional Patent Application Ser. No. 60 / 331,712, entitled “New Features For Virtual Colonoscopy”, filed Nov. 21, 2001, which is incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION [0002] The present disclosure relates to a system and method for performing a volume based three-dimensional virtual examination, and more particularly relates to a method providing enhanced visualization and navigation properties. [0003] Two-dimensional (“2D”) visualization of human organs using medical imaging devices has been widely used for pati...

AI Technical Summary

Benefits of technology

[0011] Another method for generating a fly-path through a virtual colon lumen during virtual colonoscopy includes the step of partitioning the virtual colon lumen into a number of segments. A point is selected within each segment and the points are centered with respect to a wall of the virtual colon lumen. The centered control points are then connected to establish the fly path.

[0012] A method for performing examination of a virtual colon lumen includes a volume rendering operation. For each viewpoint within the colon lumen, rays are ...

Problems solved by technology

However, complete control of a camera in a large domain would be tedious and tiring, and an operator might not view all the important features between the start and finishing point of the exploration.

However, this second technique does not give the viewer the flexibility to alter the course or investigate an interesting area viewed along the flight path.

As a consequence, when an interesting feature is located in one orientation or view, there is currently no way to automatically “jump” to that same feature in the other orientation or view.

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