TY - JOUR
T1 - Biopsy needle artifact localization in MRI-guided robotic transrectal prostate intervention
AU - Song, Sang Eun
AU - Cho, Nathan Bongjoon
AU - Iordachita, Iulian I.
AU - Guion, Peter
AU - Fichtinger, Gabor
AU - Kaushal, Aradhana
AU - Camphausen, Kevin
AU - Whitcomb, Louis L.
PY - 2012
Y1 - 2012
N2 - Recently a number of robotic intervention systems for magnetic resonance image (MRI)-guided needle placement in the prostate have been reported. In MRI-guided needle interventions, after a needle is inserted, the needle position is often confirmed with a volumetric MRI scan. Commonly used titanium needles are not directly visible in an MRI, but they generate a susceptibility artifact in the immediate neighborhood of the needle. This paper reports the results of a quantitative study of the relationship between the true position of titanium biopsy needle and the corresponding needle artifact position in MRI, thereby providing a better understanding of the influence of needle artifact on targeting errors. The titanium needle tip artifact extended 9 mm beyond the actual needle tip location with tendency to bend toward the scanner's B 0 magnetic field direction, and axially displaced 0.38 and 0.32 mm (mean) in scanner's frequency and phase encoding direction, respectively.
AB - Recently a number of robotic intervention systems for magnetic resonance image (MRI)-guided needle placement in the prostate have been reported. In MRI-guided needle interventions, after a needle is inserted, the needle position is often confirmed with a volumetric MRI scan. Commonly used titanium needles are not directly visible in an MRI, but they generate a susceptibility artifact in the immediate neighborhood of the needle. This paper reports the results of a quantitative study of the relationship between the true position of titanium biopsy needle and the corresponding needle artifact position in MRI, thereby providing a better understanding of the influence of needle artifact on targeting errors. The titanium needle tip artifact extended 9 mm beyond the actual needle tip location with tendency to bend toward the scanner's B 0 magnetic field direction, and axially displaced 0.38 and 0.32 mm (mean) in scanner's frequency and phase encoding direction, respectively.
KW - Needle artifact
KW - prostate intervention
KW - robotic intervention
KW - transrectal biopsy
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U2 - 10.1109/TBME.2012.2192118
DO - 10.1109/TBME.2012.2192118
M3 - Article
C2 - 22481805
AN - SCOPUS:84862727408
SN - 0018-9294
VL - 59
SP - 1902
EP - 1911
JO - IEEE Transactions on Biomedical Engineering
JF - IEEE Transactions on Biomedical Engineering
IS - 7
M1 - 2192118
ER -