The Journal of the Acoustical Society of Korea (한국음향학회지)

The Acoustical Society of Korea (한국음향학회)
권호 표지

Design and Fabrication of a 3-dimensional Diagnostic Ultrasonic Probe

3차원 입체 영상 진단용 초음파 프로브의 설계 및 제작

  • 은홍 (경북대학교 기계공학부) ;
  • 이수성 (경북대학교 센서공학과) ;
  • 노용래 (경북대학교 기계공학부)
  • Published : 2002.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, we have developed a 3-dimensional diagnostic ultrasonic sector probe using a convex type ultrasonic probe with 128 active elements. The probe was made to operate at the center frequency of 4.5㎒ with the bandwidth of 66%. The driving part was designed to rotate the axis of the convex probe by means of a step motor equipped with reduction gears and spur gears attached to the motor so that the probe could enable us to acquire a series of 2-dimensional images to construct a 3-dimensional image. Acoustic cover of the probe was made of polymers to have the same radius of rotation as that of the convex probe. The controllability of the rotation angle and the structural stability of the probe were confirmed through experimental 3-dimensional images obtained using the developed 3-dimensional sector probe.

본 연구에서는 128개의 능동소자로 구성된 컨벡스 (convex)형 초음파 탐촉자를 이용한 3차원 초음파 영상 진단용 초음파 섹터 프로브를 개발하였다 탐촉자는 중심주파수 4.5 ㎒, 대역폭 66%로 제작되었으며, 구동부는 감속 기어를 장착한 스텝모터와 이에 연결된 평기어를 이용해 탐촉자의 축을 회전시킴으로써 3차원 영상구현을 위한 연속적인 2차원 영상을 획득할 수 있게 고안하였다. 음향커버는 고분자 재료를 사용하여 탐촉자의 회전반경과 동일하게 설계 및 제작하였다. 제작된 섹터 프로브의 각도 제어성 및 구조적 안정성을 실험적 3차원 영상 획득을 통해 확인하였다.

Keywords

References

  1. Proc. of the 11th IEEE Int'l Symp. Current status and future trends in ultrasonic transducers for medical imaging appplications T.R.Gururaja;R.K.Panda
  2. IEEE Trans. Instrumentation and Measurement v.46 Three-dimensional ultrasound imaging system for prostate cancer diagnosis and treatment A.Fenster;S.Tong;H.N.Cardinal;C.Blake;D.B.Downey
  3. IEEE Eng. in Medicine and Biology Future trends in 3D medical imaging J.L.Coatrieux;C.Toumoulin;C.Hamon;L.Luo
  4. Ultrasonics v.36 Three-dimensional ultrasound imaging of the vasculature A.Fenster;D.Lee;S.Sherebrin;R.Rankin;D.Downey https://doi.org/10.1016/S0041-624X(97)00124-8
  5. Proc. Ultrasonics Symp. Update on 2-D array transducers for medical ultrasound S.W.Smith;R.E.Davidson;C.D.Emery;R.L.Goldberg;E.D.Light
  6. IEEE Trans. on Sonics and Ultrasonics v.SU-24 Ultrasonic imaging with an acoustic lens W.L.Beaver;D.H.Dameron;A.Macovski
  7. Ultrasound in Medicine & Biology v.24 Three-dimensional ultrasound imaging T.R.Nelson;D.H.Pretorius https://doi.org/10.1016/S0301-5629(98)00043-X
  8. Proc. IEEE. v.67 Medical ultrasonic imaging: an overview of principles and instrumentation J.F.Havlice;J.C.Taenzer https://doi.org/10.1109/PROC.1979.11287
  9. Academic Radiology v.3 Accuracy of prostate volume measurement in vitro using three-dimensional ultrasound T.L.Elliot;D.B.Downey;S.Tong;C.A.Mclean;A.Fenster https://doi.org/10.1016/S1076-6332(05)80673-7
  10. IEEE Ultrasonics Symp. Utility of image enhancement methods of three-dimensional ultrasound reconstruction M.Belohlavek;J.F.Greenleaf;D.A.Foley;J.B.Seward
  11. Proc. SPIE. v.3982 Solid object visualization of 3D Ultrasound data T.R.Nelson;M.J.Bailey https://doi.org/10.1117/12.382245
  12. Modern Acoustical Imaging H.Lee;G.Wave
  13. Ultrasound in Med. & Biol. v.24 Analysis of linear, area, and volume distortion in 3D ultrasound imaging S.Tong;H.N.Cardinal;D.B.Downey;A.Fenster https://doi.org/10.1016/S0301-5629(97)00268-8
  14. IEEE Ultrasonics Symp. High speed acquisition scanner and three-dimensional display system using ultrasonic echo data T.Mochizuki;C.Kasai
  15. Proc. of the 8th IEEE Int'l Symp. Piezoelectric transducers for medical ultrasonic imaging T.R.Gururaja
  16. IEEE Eng. in Medicine and Biology 3-D ultrasound imaging: A review A.Fenster;D.B.Downey
  17. Electron. lett. v.6 New equivalent circuit for elementary piezoelectric transducers R.Krimholz;D.A.Leedom;G.L.Mattaei https://doi.org/10.1049/el:19700238
  18. US Patent. No.5.152.294 Three dimensional ultrasonic scanner T.Mochizuki;S.Iijima
  19. US Patent. No.6.080.108 Scanning aid for quantifide three dimensional ultrasonic diagnostic imaging P.T.Dunham;E.Wash
  20. Stepping Motors and Their Microprocessor Controls (2nd Ed.) T.Kenjo;A.Sugawara