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英文誌(2004-)

Journal of Medical Ultrasonics

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cover

1980 - Vol.7

Vol.7 No.03

Original Article(原著)

(0195 - 0201)

Fモード表示超音波診断装置

The Ultrasonic Diagnostic System for F Mode Image

伊藤 健一1, 渋谷 昇1, 瀬沼 訓行1, 明石 健一1, 猿楽 寿雄1, 横井 浩2, 吉川 義博3, 平福 三吉3

Ken-ichi ITO1, Noboru SHIBUYA1, Noriyuki SENUMA1, Ken-ichi AKASHI1, Toshio SARUGAKU1, Hiromu YOKOI2, Yoshihiro YOSHIKAWA3, Sankichi HlRAFUKU3

1東京農工大学工学部電子工学科, 2大阪日生病院, 3アロカ株式会社

1Tokyo University of Agriculture and technology, faculty of electronic engineering, 2Nissei Hospital, 3Aloka Co. Ltd.

キーワード : F-mode method, digital scan converter, microcomputer, light pen, electroscanning equipment

Recently the electroscanning high speed B- and C-scan ultrasonic diagnostic system have been developed and become the most popular ultrasonic instrument for clinical examinations. Extending the idea of C-mode method, a new diagnostic scanning method was introduced and named F-mode method, in order to view internal organs and their lesions completely and three-dimensionally.
To provide a new scanning method, we have developed a new real-time ultrasonic diagnostic system with digital frame memory units.
The F-mode scanning method makes it possible to obtain the echo image from the free diagnostic plane of the lesion by moving the electroscanning probe manually or mechanically in the other direction as the electroscanning direction.
The advantages of the newly developed system are as follows,
(1) A new scanning mode, called Flexible mode or F-mode, was developed. Ultrasonic echo images from free surfaces in the human body can be obtained by the F-mode unit.
(2) The diagnostic plane is indicated with three different methods, hardware logic circuit, microcomputer and light pen.
(3) Real-time dynamic and frozen images of tissue can be observed.
In this paper the characteristic features of the developed system and clinical applications are described.