An in vivo technique for estimation of size and relative sound velocity of breast tumor using distorted image in ultrasonic tomogram

Kawan Soetanto, Shigeo Ohtsuki, Motoyoshi Okujima

Research output: Contribution to journalArticle


A technique is proposed for estimation of size and sound velocity of a massive tissue relative to its surroundings that is larger with ultrasonic beam width. This technique is based on a distorted image of a plane reflector behind a massive tissue in an ultrasonic tomogram, which is caused by ultrasonic refraction. An example of a breast tumor with an obscure boundary is shown to demonstrate the usefulness of this technique.

Original languageEnglish
Pages (from-to)84-86
Number of pages3
JournalJapanese Journal of Applied Physics
Publication statusPublished - 1985
Externally publishedYes


ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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