TY - JOUR
T1 - Real-time estimation of 3-D needle shape and deflection for MRI-guided interventions
AU - Park, Yong Lae
AU - Elayaperumal, Santhi
AU - Daniel, Bruce
AU - Ryu, Seok Chang
AU - Shin, Mihye
AU - Savall, Joan
AU - Black, Richard J.
AU - Moslehi, Behzad
AU - Cutkosky, Mark R.
N1 - Funding Information:
Manuscript received February 16, 2010; revised July 27, 2010; accepted September 15, 2010. Date of publication October 21, 2010; date of current version December 15, 2010. Recommended by Guest Editor K. Masamune. This work was supported in part by the U.S. Army Medical Research Acquisition Activity (USAMRAA) through Small Business Technology Transfer (STTR) under Contract W81XWH8175M677, in part by the National Institutes of Health (NIH) through “Techniques for MRI-Guided Cryosurgery of Prostate Cancer” under Contract RO1 CA/DK092061, and in part by the Graduate Research Fellowship Program (GRFP) of the National Science Foundation (NSF).
PY - 2010/12
Y1 - 2010/12
N2 - We describe a MRI-compatible biopsy needle instrumented with optical fiber Bragg gratings for measuring bending deflections of the needle as it is inserted into tissues. During procedures, such as diagnostic biopsies and localized treatments, it is useful to track any tool deviation from the planned trajectory to minimize positioning errors and procedural complications. The goal is to display tool deflections in real time, with greater bandwidth and accuracy than when viewing the tool in MR images. A standard 18 ga × 15 cm inner needle is prepared using a fixture, and 350-μ m-deep grooves are created along its length. Optical fibers are embedded in the grooves. Two sets of sensors, located at different points along the needle, provide an estimate of the bent profile, as well as temperature compensation. Tests of the needle in a water bath showed that it produced no adverse imaging artifacts when used with the MR scanner.
AB - We describe a MRI-compatible biopsy needle instrumented with optical fiber Bragg gratings for measuring bending deflections of the needle as it is inserted into tissues. During procedures, such as diagnostic biopsies and localized treatments, it is useful to track any tool deviation from the planned trajectory to minimize positioning errors and procedural complications. The goal is to display tool deflections in real time, with greater bandwidth and accuracy than when viewing the tool in MR images. A standard 18 ga × 15 cm inner needle is prepared using a fixture, and 350-μ m-deep grooves are created along its length. Optical fibers are embedded in the grooves. Two sets of sensors, located at different points along the needle, provide an estimate of the bent profile, as well as temperature compensation. Tests of the needle in a water bath showed that it produced no adverse imaging artifacts when used with the MR scanner.
KW - Biomedical transducers
KW - Bragg gratings, magnetic resonance imaging (MRI)
KW - biopsy
KW - optical fiber sensors
KW - strain measurement
UR - http://www.scopus.com/inward/record.url?scp=78650373184&partnerID=8YFLogxK
U2 - 10.1109/TMECH.2010.2080360
DO - 10.1109/TMECH.2010.2080360
M3 - Article
AN - SCOPUS:78650373184
SN - 1083-4435
VL - 15
SP - 906
EP - 915
JO - IEEE/ASME Transactions on Mechatronics
JF - IEEE/ASME Transactions on Mechatronics
IS - 6
M1 - 5607309
ER -