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  • Title: A new collimator for cardiac tomography: the quadrant slant-hole collimator.
    Author: Chang W, Lin SL, Henkin RE.
    Journal: J Nucl Med; 1982 Sep; 23(9):830-5. PubMed ID: 6980976.
    Abstract:
    A quadrant slant-hole (QSH) collimator was constructed for myocardial perfusion tomography on a 15-inch large-field gamma camera. This system optimizes the crystal area for multiple-view photon detection while at the same time offering excellent tomographic performance. In addition to the advantages associated with parallel slant-hole collimation, this system's four orthogonal views provide a solution to the problem of patient positioning, namely, proper alignment of the long axis of the left ventricle to the camera. Rapid data acquisition, together with fast reconstruction, make the QSH system a practical approach to tomographic imaging of the myocardium.
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