PMID: 15377092Sep 21, 2004Paper

Breathing chest radiography using a dynamic flat-panel detector combined with computer analysis

Medical Physics
Rie TanakaNakano Yoshihisa

Abstract

Kinetic information is crucial when evaluating certain pulmonary diseases. When a dynamic flat-panel detector (FPD) can be used for a chest examination, kinetic information can be obtained simply and cost-effectively. The purpose of this study was to develop methods for analyzing respiratory kinetics, such as movement of the diaphragm and lung structures, and the respiratory changes in x-ray translucency in local lung fields. Postero-anterior dynamic chest radiographs during respiration were obtained with a modified FPD, which provided dynamic chest radiographs at a rate of 3 frames/s. Image registration for correction of physical motion was followed by measurement of the distance from the lung apex to the diaphragm. Next, we used a cross-correlation technique to measure the vectors of respiratory movement in specific lung areas. Finally, the average pixel value for a given local area was calculated by tracing the same local area in the lung field. This method of analysis was used for six healthy volunteers and one emphysema patient. The results reported here represent the initial stage in the development of a method that may constitute a new method for diagnosing certain pulmonary diseases, such as chronic obstructive pulmonar...Continue Reading

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Citations

Mar 16, 2007·Journal of Digital Imaging·Rie TanakaOsamu Matsui
Dec 25, 2009·International Journal of Computer Assisted Radiology and Surgery·Rie TanakaOsamu Matsui
Jun 16, 2010·International Journal of Computer Assisted Radiology and Surgery·Rie TanakaOsamu Matsui
Jul 1, 2008·Radiological Physics and Technology·Rie TanakaOsamu Matsui
Jul 4, 2012·Journal of Clinical Imaging Science·Maria-Aurora MoralesDaniele Rovai
Jul 16, 2009·Nihon Hoshasen Gijutsu Gakkai zasshi·Hiroki KawashimaShigeru Sanada
Jul 16, 2009·Nihon Hoshasen Gijutsu Gakkai zasshi·Rie Tanaka
Aug 15, 2014·Hand Surgery : an International Journal Devoted to Hand and Upper Limb Surgery and Related Research : Journal of the Asia-Pacific Federation of Societies for Surgery of the Hand·Hiroki KawashimaShigeru Sanada
Nov 4, 2008·Medical Physics·Samuel G Armato, Bram van Ginneken
Jun 14, 2016·Radiological Physics and Technology·Rie Tanaka
Jul 15, 2015·Journal of Medical Imaging·Rie TanakaHiroki Kawashima
Oct 27, 2020·Journal of Applied Clinical Medical Physics·Shota YamamotoFumio Sakamaki
Dec 9, 2020·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Akinori HataHiroto Hatabu
Jul 9, 2021·The British Journal of Radiology·Takuya HinoHiroto Hatabu

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