Ultrasonic and photoacoustic imaging of knee joints in normal and osteoarthritis rats

研究成果: Conference contribution

10 被引用数 (Scopus)

抄録

Osteoarthritis (OA) is a common joint disorder and estimated to cause symptoms in 20-40% of the elderly population. 532 nm laser is much absorbed in developed vascular network in the spongy bone which is one of the main characteristics of OA. In this study, a photoacoustic (PA) imaging system with 532 nm laser and 50 MHz US (ultrasound) transducer was developed. Normal and OA knee joints were observed by US and PA imaging. PA signal from the spongy bone was strong where US reflection was very weak. PA signal from the spongy bone was significantly strong in OA compared with that in normal knee while US showed similar low intensity echo in normal and OA. Detailed structure and information on vascular density of spongy bone in rat knee joint were successfully obtained with US / PA combined imaging. US / PA imaging should be useful for early diagnosis of OA.

本文言語English
ホスト出版物のタイトル2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013
ページ1116-1119
ページ数4
DOI
出版ステータスPublished - 2013
イベント2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013 - Osaka, Japan
継続期間: 2013 7月 32013 7月 7

出版物シリーズ

名前Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
ISSN(印刷版)1557-170X

Other

Other2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013
国/地域Japan
CityOsaka
Period13/7/313/7/7

ASJC Scopus subject areas

  • 信号処理
  • 生体医工学
  • コンピュータ ビジョンおよびパターン認識
  • 健康情報学

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