Extraction method of lung field from CT image
Abstract
Abstract Translated from Japanese 【課題】病変領域を含んだまま、かつロスト肺野領域も含めた肺野領域全体を抽出する。 【解決手段】2次元CT画像から肺野領域を抽出する方法であって、前記2次元CT画像を、CT値により2値化して、空気領域と軟部組織領域とに分ける工程と、前記軟部組織領域から体表を検出する工程と、CT装置の撮影限界と接するロスト肺野領域が前記空気領域内に存在するか否かを判定する工程と、前記ロスト肺野領域が存在する場合に、該ロスト肺野領域を抽出する工程と、前記ロスト肺野領域をも含めて肺野領域全体の抽出を行うことを特徴とするCT画像からの肺野領域抽出方法を提供する。 【選択図】図2 An entire lung field region including a lesion region and including a lost lung field region is extracted. A method of extracting a lung field region from a two-dimensional CT image, wherein the two-dimensional CT image is binarized by a CT value and divided into an air region and a soft tissue region, and the soft tissue A step of detecting a body surface from the region, a step of determining whether or not a lost lung field region in contact with an imaging limit of the CT apparatus exists in the air region, and when the lost lung field region exists, The present invention provides a method for extracting a lung field region from a CT image, comprising: extracting a lost lung field region; and extracting the entire lung field region including the lost lung field region. [Selection] Figure 2
Inventors
- 👤 Satoru Osawa
- 👤 哲 大沢
- 👤 Saika O
- 👤 彩華 王
- 👤 Takayuki Udagawa
- 👤 隆之 宇田川
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