Evaluation of the spatial resolution of multiplanar reconstruction images.

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

doi:10.1007/s12194-008-0033-2

Evaluation of the spatial resolution of multiplanar reconstruction images.

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

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	229-233
Number of pages	5
Journal	Radiological physics and technology
Volume	1
Issue number	2
DOIs	https://doi.org/10.1007/s12194-008-0033-2
Publication status	Published - Jan 1 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

Radiation
Physical Therapy, Sports Therapy and Rehabilitation
Radiology Nuclear Medicine and imaging

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10.1007/s12194-008-0033-2

Cite this

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title = "Evaluation of the spatial resolution of multiplanar reconstruction images.",

abstract = "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.",

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AU - Kudomi, Shohei

AU - Ueda, Katsuhiko

AU - Ueda, Yasuyuki

AU - Kawakubo, Masateru

AU - Sanada, Taizo

PY - 2008/1/1

Y1 - 2008/1/1

N2 - 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.

AB - 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.

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Evaluation of the spatial resolution of multiplanar reconstruction images.

Abstract

All Science Journal Classification (ASJC) codes

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