PMID- 18042414
OWN - NLM
STAT- MEDLINE
DCOM- 20080410
LR  - 20211027
IS  - 1090-7807 (Print)
IS  - 1096-0856 (Electronic)
IS  - 1090-7807 (Linking)
VI  - 190
IP  - 2
DP  - 2008 Feb
TI  - Evaluation of sub-microsecond recovery resonators for in vivo electron 
      paramagnetic resonance imaging.
PG  - 248-54
AB  - Time-domain (TD) electron paramagnetic resonance (EPR) imaging at 300MHz for in 
      vivo applications requires resonators with recovery times less than 1 micros 
      after pulsed excitation to reliably capture the rapidly decaying free induction 
      decay (FID). In this study, we tested the suitability of the Litz foil coil 
      resonator (LCR), commonly used in MRI, for in vivo EPR/EPRI applications in the 
      TD mode and compared with parallel coil resonator (PCR). In TD mode, the 
      sensitivity of LCR was lower than that of the PCR. However, in continuous wave 
      (CW) mode, the LCR showed better sensitivity. The RF homogeneity was similar in 
      both the resonators. The axis of the RF magnetic field is transverse to the 
      cylindrical axis of the LCR, making the resonator and the magnet co-axial. 
      Therefore, the loading of animals, and placing of the anesthesia nose cone and 
      temperature monitors was more convenient in the LCR compared to the PCR whose 
      axis is perpendicular to the magnet axis.
FAU - Hyodo, F
AU  - Hyodo F
AD  - Radiation Biology Branch, Center for Cancer Research, National Cancer Institute, 
      National Institutes of Health, Bethesda, MD 20892-1002, USA.
FAU - Subramanian, S
AU  - Subramanian S
FAU - Devasahayam, N
AU  - Devasahayam N
FAU - Murugesan, R
AU  - Murugesan R
FAU - Matsumoto, K
AU  - Matsumoto K
FAU - Mitchell, J B
AU  - Mitchell JB
FAU - Krishna, M C
AU  - Krishna MC
LA  - eng
GR  - Z01 BC010476-04/ImNIH/Intramural NIH HHS/United States
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, N.I.H., Intramural
PT  - Research Support, Non-U.S. Gov't
DEP - 20071107
PL  - United States
TA  - J Magn Reson
JT  - Journal of magnetic resonance (San Diego, Calif. : 1997)
JID - 9707935
RN  - 0 (Spin Labels)
SB  - IM
MH  - Animals
MH  - Electron Spin Resonance Spectroscopy/*instrumentation
MH  - Female
MH  - Image Processing, Computer-Assisted/instrumentation
MH  - Mice
MH  - Mice, Inbred C3H
MH  - Phantoms, Imaging
MH  - Sensitivity and Specificity
MH  - Spin Labels
MH  - Tail/*blood supply
MH  - Technology Assessment, Biomedical
PMC - PMC2258207
MID - NIHMS39336
EDAT- 2007/11/29 09:00
MHDA- 2008/04/11 09:00
PMCR- 2009/02/01
CRDT- 2007/11/29 09:00
PHST- 2007/06/14 00:00 [received]
PHST- 2007/10/16 00:00 [revised]
PHST- 2007/11/02 00:00 [accepted]
PHST- 2007/11/29 09:00 [pubmed]
PHST- 2008/04/11 09:00 [medline]
PHST- 2007/11/29 09:00 [entrez]
PHST- 2009/02/01 00:00 [pmc-release]
AID - S1090-7807(07)00341-2 [pii]
AID - 10.1016/j.jmr.2007.11.004 [doi]
PST - ppublish
SO  - J Magn Reson. 2008 Feb;190(2):248-54. doi: 10.1016/j.jmr.2007.11.004. Epub 2007 
      Nov 7.