Coronary artery stenosis detection with holographic display of 3D angiograms

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:372487

Ritman, E L; Schwanke, T D; Simari, R D; Schwartz, R S; Thomas, P J ^[1]

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1. Mayo Clinic, Rochester, MN (United States)

The objective of this study was to establish the accuracy of a holographic display approach for detection of stenoses in coronary arteries. The rationale for using an holographic display approach is that multiple angles of view of the coronary arteriogram are provided by a single x-ray-like film, backlit by a special light box. This should be more convenient in that the viewer does not have to page back and forth through a cine angiogram to obtain the multiple angles of view. The method used to test this technique involved viewing 100 3D coronary angiograms. These images were generated from the 3D angiographic images of nine normal coronary arterial trees generated with the Dynamic Spatial Reconstructor (DSR) fast CT scanner. Using the image processing programs, the image of the coronary artery lumen was locally narrowed by an amount and length and at a location determined by a random look-up table. Two independent, blinded, experienced angiographers viewed the holographic displays of these angiograms and recorded their confidence about the presence, location and severity of the stenoses. This procedure evaluates the sensitivity and specificity of the detection of coronary artery stenoses as a function of the severity, size and location along the arteries.

• OSTI ID: 372487
• Report Number(s): CONF-9502135--; ISBN 0-8194-1781-5
• Country of Publication: United States
• Language: English

Related Subjects

55 BIOLOGY AND MEDICINE
BASIC STUDIES
ACCURACY
COMPUTERIZED TOMOGRAPHY
CORONARIES
DIAGNOSIS
IMAGE PROCESSING
VASCULAR DISEASES