TOMOSYNTHESIS: A Three-Dimensional Radiographic Imaging Technique

David G. Grant

IEEE Transactions on Biomedical Engineering · 1972 · 363 citations · 3 references

Concepts

TL;DR

The system reconstructs a 3‑D volume by reprojecting twenty conventional radiographs into a display volume that matches the X‑ray source geometry, integrating them on a screen to produce adjustable tomographic planes. Clinical evaluation shows the system yields continuous, true‑sized images with ~2 lp/mm resolution and allows 2–3× magnification.

Abstract

A three-dimensional radiographic imaging system has been developed, and is presently being clinically evaluated. Twenty conventional radiographs are reduced and reprojected into a display volume according to a geometry which matches the X-ray source geometry. The images are integrated on a viewing screen and produce the tomographic plane corresponding to the screen's position. Planes parallel and tilted with respect to the scanning plane can be observed by simply adjusting the screen. The image is continuous in all directions, possesses a resolution of about 2lp/mm, and is usually true-sized, although factors of 2 or 3 in magnification can be easily produced.

References

3