Needle guiding robot with five-bar linkage for MR-guided thermotherapy of liver tumor

Nobuhiko Hata, Futoshi Ohara, Ryuji Hashimoto, Makoto Hashizume, Takeyoshi Dohi

Research output: Contribution to journalConference article

10 Citations (Scopus)

Abstract

This paper reports the robot for horizontal gap open MRI which controls needle orientation effectively in the vertically limited gantry space. We locate the robot including actuators wholly in MR gantry and puncture needle from side of patient's body. The robot has three Degree-of-Freedom (DOF) and can control needle orientation using five-bar linkage mechanism and gimbal mechanism. Two DOF is to actuate five-bar linkage and the other DOF to make five-bar linkage up and down. In experiments, the accuracy of five-bar linkage was 0.89±0.15 [mm] on a whole average and the accuracy of vertical placement of fivebar linkage was 0.13±0.02 [mm]. MR images had insignificant degradation of 19.4% in attrition rate of S/N ratio at the maximum. We conclude that the robot can control needle orientation with high repeatability and high MR compatibility in the limited gantry space.

Original languageEnglish
Pages (from-to)161-168
Number of pages8
JournalLecture Notes in Computer Science
Volume3217
Issue number1 PART 2
Publication statusPublished - Dec 1 2004
EventMedical Image Computing and Computer-Assisted Intervention, MICCAI 2004 - 7th International Conference, Proceedings - Saint-Malo, France
Duration: Sep 26 2004Sep 29 2004

Fingerprint

Liver
Needles
Linkage
Tumors
Tumor
Robot
Robots
Degree of freedom
Attrition
Magnetic resonance imaging
Repeatability
Actuators
Compatibility
Placement
Actuator
Degradation
Horizontal
Vertical
Experiments
Experiment

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

Cite this

Hata, N., Ohara, F., Hashimoto, R., Hashizume, M., & Dohi, T. (2004). Needle guiding robot with five-bar linkage for MR-guided thermotherapy of liver tumor. Lecture Notes in Computer Science, 3217(1 PART 2), 161-168.

Needle guiding robot with five-bar linkage for MR-guided thermotherapy of liver tumor. / Hata, Nobuhiko; Ohara, Futoshi; Hashimoto, Ryuji; Hashizume, Makoto; Dohi, Takeyoshi.

In: Lecture Notes in Computer Science, Vol. 3217, No. 1 PART 2, 01.12.2004, p. 161-168.

Research output: Contribution to journalConference article

Hata, N, Ohara, F, Hashimoto, R, Hashizume, M & Dohi, T 2004, 'Needle guiding robot with five-bar linkage for MR-guided thermotherapy of liver tumor', Lecture Notes in Computer Science, vol. 3217, no. 1 PART 2, pp. 161-168.
Hata N, Ohara F, Hashimoto R, Hashizume M, Dohi T. Needle guiding robot with five-bar linkage for MR-guided thermotherapy of liver tumor. Lecture Notes in Computer Science. 2004 Dec 1;3217(1 PART 2):161-168.
Hata, Nobuhiko ; Ohara, Futoshi ; Hashimoto, Ryuji ; Hashizume, Makoto ; Dohi, Takeyoshi. / Needle guiding robot with five-bar linkage for MR-guided thermotherapy of liver tumor. In: Lecture Notes in Computer Science. 2004 ; Vol. 3217, No. 1 PART 2. pp. 161-168.
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