Katsumi Tsujioka PhD, Presenter: Nothing to Disclose

Yujiro Doi, Abstract Co-Author: Nothing to Disclose

Tetsuya Hirokawa, Abstract Co-Author: Nothing to Disclose

Akihito Watanabe, Abstract Co-Author: Nothing to Disclose

Hayato Shimomura, Abstract Co-Author: Nothing to Disclose

Rina Terauchi, Abstract Co-Author: Nothing to Disclose

Atsushi Shitashimizu, Abstract Co-Author: Nothing to Disclose

An area detector CT is capable of scanning a wide area in the Z-axis direction on a single scanning operation. For this reason, this type of CT has been proved effective for a three dimensional image display. This paper reports on a comparison between 320-row CT image and 640-row CT image for a three dimensional CT display.

In the experiment, we used a phantom made up of a foamed styrol piece of 5 cm in diameter on which tungsten wire of 0.02 mm in diameter is wound around spirally. After conducting CT scan, we displayed the image in three dimensions respectively for 320-row image reconstruction and 640-row image reconstruction. The 3D images were also compared for clinical cases. In the 3D display or the MPR display, the 640-row image reconstruction showed better continuity than the 320-row image reconstruction.

In case of 3D display with CT, proper evaluation can not be given only with the spatial resolution and slice thickness in the Z-axis direction. Even for a 320-row ADCT, implementation of 640-row image reconstruction provides far better 3D CT images. Image reconstruction shall be carried out in 640 rows for three dimensional CT of clinical cases.

Tsujioka, K, Doi, Y, Hirokawa, T, Watanabe, A, Shimomura, H, Terauchi, R, Shitashimizu, A, Comparison of 320-Row CT Image and 640-Row CT Image on Area Detector CT (ADCT): Improvement of Image Continuity on Three-dimensional CT.  Radiological Society of North America 2011 Scientific Assembly and Annual Meeting, November 26 - December 2, 2011 ,Chicago IL. http://archive.rsna.org/2011/11014105.html