title: Seven-pinhole tomography of the thyroid.
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).
authors.forename: J W
authors.initials: JW
authors.lastname: Van Giessen
authors.forename: M A
authors.initials: MA
authors.lastname: Viergever
authors.forename: C N
authors.initials: CN
authors.lastname: De Graaf