Publications [#132805] of G. Allan Johnson

Papers Published
  1. HE Cline, WE Lorensen, RJ Herfkens, GA Johnson, GH Glover, Vascular morphology by three-dimensional magnetic resonance imaging., Magnetic resonance imaging, UNITED STATES, vol. 7 no. 1 , pp. 45-54 .

    A three-dimensional examination of blood vessels is provided using MR data from seven cases. The vascular surfaces are constructed with an algorithm that automatically follows the selected artery or vein and generates a projected three-dimensional gradient shaded image. Fast 3DFT pulse sequences were optimized to enhance the time-of-flight contrast of the intravascular region. By increasing the surface threshold value in a three-dimensional head study, the flesh of a patient's face was peeled away to demonstrate the superfacial temporal artery. Gated cardiac images show the great vessels and cardiac chambers. A three-dimensional view of the aorta shows an irregular surface in the vicinity of an adrenal tumor. 3D MR exams provide a non-invasive technique for assessing vascular morphology in a clinical setting.