Title :
Seven-Pinhole Tomography of the Thyroid
Author :
Van Giessen, John W. ; Viergever, Max A. ; De Graaf, Cornelis N.
fDate :
6/1/1986 12:00:00 AM
Abstract :
In this paper we introduce a new application of the sevenpinhole (7P) collimator: tomographic imaging of the thyroid. The collimator design has been reoptimized for this particular application by diminishing the distance from the collimator plate to the crystal and by choosing a smaller pinhole diameter. To reconstruct thyroid images from the two-dimensional projection data we use a method which we developed for 7P tomographic imaging of the heart [1]. Phantom experiments and patient studies demonstrate that this new device is capable of producing tomographic images of good quality and high resolution. Therefore, it seems to offer a promising alternative to conventional planar imaging of the thyroid (using a single-pinhole collimator).
Keywords :
Collimators; Gamma rays; Heart; High-resolution imaging; Image reconstruction; Image resolution; Imaging phantoms; Muscles; Scattering; Tomography;
Journal_Title :
Medical Imaging, IEEE Transactions on
DOI :
10.1109/TMI.1986.4307751