Evaluation of the spatial resolution of multiplanar reconstruction images.

Shohei Kudomi, Katsuhiko Ueda, Yasuyuki Ueda, Masateru Kawakubo, Taizo Sanada

研究成果: Contribution to journalArticle査読

3 被引用数 (Scopus)

抄録

We present a simple method for evaluating the spatial resolution of multi-slice computed tomography (MSCT) multiplanar reconstruction images (MPRs). We scanned a bead phantom to obtain the three-dimensional point spread function (PSF), and bead-centric MPRs were generated. The modulation transfer function (MTF) was calculated from the MPRs via a two-dimensional Fourier transform (2DFFT) of the PSF. The results showed that, when MPRs were reconstructed using axial images less than or equal to a nominal 1.0-mm slice-width with a standard kernel for the abdomen, the MTF in the longitudinal direction (z-direction) was superior to that in the in-plane (x-y plane) direction. It was also found that the arbitrary-angle MTFs of MPRs were between the MTFs of the in-plane and longitudinal directions. It was confirmed that this method can be used to evaluate MPR spatial resolution.

本文言語英語
ページ(範囲)229-233
ページ数5
ジャーナルRadiological physics and technology
1
2
DOI
出版ステータス出版済み - 1 1 2008
外部発表はい

All Science Journal Classification (ASJC) codes

  • 放射線
  • 理学療法、スポーツ療法とリハビリテーション
  • 放射線学、核医学およびイメージング

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