書誌事項
- タイトル別名
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- Accuracy of Modulation Transfer Function for Target Size and Field of View in a Circular Edge Strategy Using the CT Image Measurement Program
- CT ガゾウ ケイソク プログラム オ モチイタ エンケイ エッジホウ ニ オケル ヒョウテキケイ ト FOV ニ タイスル MTF ソクテイ セイド
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説明
Purpose: The purpose of this study was to evaluate the effects of target diameter and display-field of view (D-FOV) in modulation transfer function (MTF) by circular edge strategy using the computed tomography (CT) image measurement program “CTmeasure”. Methods: We calculated the MTF (MTFedge) using the circular edge strategy applied to cylindrical phantom (200 mmφ) that inserted with cylinders have 10, 20, 30, and 40 mm diameters. The phantom images were reconstructed using filtered back projection method varied with D-FOV (240, 320, 400, and 500 mm). The study compared both MTFedge and MTFwire at MTF50% and MTF10% for target diameter and D-FOV, respectively. Results: The MTFedge by the different of target diameter indicated in rough compatibility. However, MTFedge of D-FOV diameters (320, 400, and 500 mm) decreased in the high frequency range. Conclusions: The circular edge strategy for MTF depended on the D-FOV, however, it was little dependent on target diameter using the CT image measurement program “CTmeasure”.
収録刊行物
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- 日本放射線技術学会雑誌
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日本放射線技術学会雑誌 72 (6), 489-495, 2016
公益社団法人 日本放射線技術学会
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詳細情報 詳細情報について
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- CRID
- 1390282681340205952
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- NII論文ID
- 130005157197
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- NII書誌ID
- AN00197784
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- ISSN
- 18814883
- 03694305
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- NDL書誌ID
- 027558716
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- PubMed
- 27320152
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- 本文言語コード
- ja
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- 資料種別
- journal article
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- データソース種別
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- JaLC
- NDLサーチ
- Crossref
- PubMed
- CiNii Articles
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可