3-Dimensional adaptive raw-data filter: Evaluation in low dose chest multidetector-row computed tomography

Takeshi Kubo, Mizuki Nishino, Aya Kino, Norihiko Yoshimura, Pei Jan Paul Lin, Masaya Takahashi, Vassilios Raptopoulos, Hiroto Hatabu

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

OBJECTIVES: To evaluate a 3-dimensional adaptive raw-data filter in reducing streak artifacts in low dose chest computed tomographic (CT) images. METHODS: Fourteen adult patients who underwent low dose chest CT examination (parameters: 25 or 50 mAs, 120 kV) on 64-detector CTscanner were included in this study. We prepared 2 sets of contiguous 5-mm thick images by reconstruction with and without 3-dimensional adaptive raw-data filter (filter-processed and unprocessed images). Streak artifacts and visualization of peripheral vessels in both filter-processed and unprocessed images were evaluated using a 5-point scale. Upper, middle, and lower thorax were evaluated separately. RESULTS: The difference in artifact severity was statistically significant in upper and lower thorax (P = 0.002 and 0.03, respectively), whereas it was not significant in middle thorax (P = 0.13). The difference in the visibility of peripheral pulmonary vessels was not statistically significant in all anatomical regions. CONCLUSIONS: The 3-dimensional adaptive raw-data filter reduced streak artifacts in low dose chest CT in upper and lower thorax.

Original languageEnglish (US)
Pages (from-to)933-938
Number of pages6
JournalJournal of Computer Assisted Tomography
Volume30
Issue number6
DOIs
StatePublished - Nov 2006

Fingerprint

Multidetector Computed Tomography
Thorax
Artifacts
Computer-Assisted Image Processing
Lung

Keywords

  • Chest CT
  • Filter
  • Low dose CT
  • Streak artifacts

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

3-Dimensional adaptive raw-data filter : Evaluation in low dose chest multidetector-row computed tomography. / Kubo, Takeshi; Nishino, Mizuki; Kino, Aya; Yoshimura, Norihiko; Lin, Pei Jan Paul; Takahashi, Masaya; Raptopoulos, Vassilios; Hatabu, Hiroto.

In: Journal of Computer Assisted Tomography, Vol. 30, No. 6, 11.2006, p. 933-938.

Research output: Contribution to journalArticle

Kubo, T, Nishino, M, Kino, A, Yoshimura, N, Lin, PJP, Takahashi, M, Raptopoulos, V & Hatabu, H 2006, '3-Dimensional adaptive raw-data filter: Evaluation in low dose chest multidetector-row computed tomography', Journal of Computer Assisted Tomography, vol. 30, no. 6, pp. 933-938. https://doi.org/10.1097/01.rct.0000221951.60393.64
Kubo, Takeshi ; Nishino, Mizuki ; Kino, Aya ; Yoshimura, Norihiko ; Lin, Pei Jan Paul ; Takahashi, Masaya ; Raptopoulos, Vassilios ; Hatabu, Hiroto. / 3-Dimensional adaptive raw-data filter : Evaluation in low dose chest multidetector-row computed tomography. In: Journal of Computer Assisted Tomography. 2006 ; Vol. 30, No. 6. pp. 933-938.
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