Abstract
The purpose of the current study is to evaluate the accuracy of MR thermometry for radiofrequency ablation (RFA) with hook-shaped electrodes. The objects were eight extracted bovine livers. The chemical shift change was calculated from MR images acquired with a spoiled gradient echo sequence and compared with the temperature directly measured with a thermocouple. Linear regression was established between them with a coefficient of -0.0110±0.0007 ppm/°C and errors were calculated as -0.50±7.50°C. MR thermometry is capable of monitoring temperature for RFA.
| Original language | English |
|---|---|
| Pages (from-to) | 95-100 |
| Number of pages | 6 |
| Journal | Magnetic Resonance in Medical Sciences |
| Volume | 3 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2004 |
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Keywords
- MR thermometry
- Phase imaging
- RF ablation
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
Cite this
Accuracy of MR temperature measurement based on chemical shift change for radiofrequency ablation using hook-shaped electrodes. / Okuda, Shigeo; Kuroda, Kagayaki; Kainuma, Osamu; Oshio, Koichi; Fujiwara, Hirokazu; Kuribayashi, Sachio.
In: Magnetic Resonance in Medical Sciences, Vol. 3, No. 2, 2004, p. 95-100.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Accuracy of MR temperature measurement based on chemical shift change for radiofrequency ablation using hook-shaped electrodes
AU - Okuda, Shigeo
AU - Kuroda, Kagayaki
AU - Kainuma, Osamu
AU - Oshio, Koichi
AU - Fujiwara, Hirokazu
AU - Kuribayashi, Sachio
PY - 2004
Y1 - 2004
N2 - The purpose of the current study is to evaluate the accuracy of MR thermometry for radiofrequency ablation (RFA) with hook-shaped electrodes. The objects were eight extracted bovine livers. The chemical shift change was calculated from MR images acquired with a spoiled gradient echo sequence and compared with the temperature directly measured with a thermocouple. Linear regression was established between them with a coefficient of -0.0110±0.0007 ppm/°C and errors were calculated as -0.50±7.50°C. MR thermometry is capable of monitoring temperature for RFA.
AB - The purpose of the current study is to evaluate the accuracy of MR thermometry for radiofrequency ablation (RFA) with hook-shaped electrodes. The objects were eight extracted bovine livers. The chemical shift change was calculated from MR images acquired with a spoiled gradient echo sequence and compared with the temperature directly measured with a thermocouple. Linear regression was established between them with a coefficient of -0.0110±0.0007 ppm/°C and errors were calculated as -0.50±7.50°C. MR thermometry is capable of monitoring temperature for RFA.
KW - MR thermometry
KW - Phase imaging
KW - RF ablation
UR - http://www.scopus.com/inward/record.url?scp=24344489894&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=24344489894&partnerID=8YFLogxK
U2 - 10.2463/mrms.3.95
DO - 10.2463/mrms.3.95
M3 - Article
C2 - 16093625
AN - SCOPUS:24344489894
VL - 3
SP - 95
EP - 100
JO - Magnetic Resonance in Medical Sciences
JF - Magnetic Resonance in Medical Sciences
SN - 1347-3182
IS - 2
ER -