title: Optimizing bioimpedance measurement configuration for dual-gated nuclear medicine imaging: a sensitivity study.
abstract: Motion artefacts due to respiration and cardiac contractions may deteriorate the quality of nuclear medicine imaging leading to incorrect diagnosis and inadequate treatment. Motion artefacts can be minimized by simultaneous respiratory and cardiac gating, dual-gating. Currently, only cardiac gating is often performed. In this study, an optimized bioimpedance measurement configuration was determined for simultaneous respiratory and cardiac gating signal acquisition. The optimized configuration was located on anterolateral upper thorax based on sensitivity simulations utilizing a simplified thorax model. The validity of the optimized configuration was studied with six healthy volunteers. In the peak-to-peak and frequency content analyses the optimized configuration showed consistently higher peak-to-peak values and frequency content than other studied measurement configurations. This study indicates that the bioimpedance method has potential for the dual-gating in nuclear medicine imaging. The method would minimize the need of additional equipment, is easy for the technologists to use and comfortable for the patients.
authors: Department of Clinical Physiology and Nuclear Medicine, Diagnostic Imaging Centre, Kuopio University Hospital, P.O. Box 1777, 70211 Kuopio, Finland. tuomas.koivumaki@kuh.fi
authors: Tuomas
authors: T
authors: Koivumäki
authors: Marko
authors: M
authors: Vauhkonen
authors: Jyrki T
authors: JT
authors: Kuikka
authors: Mikko A
authors: MA
authors: Hakulinen
references: IEEE Eng Med Biol Mag. 1989;8(1):35-8
references: 18238303
references: Physiol Meas. 2011 Jan;32(1):19-34
references: 21098909
references: Int J Psychophysiol. 2006 Feb;59(2):97-106
references: 15893397
references: IEEE Trans Biomed Eng. 1989 Sep;36(9):918-24
references: 2777280
references: Eur J Nucl Med Mol Imaging. 2008 Jun;35(6):1117-23
references: 18219483
references: Eur Respir J. 2000 Dec;16(6):1180-92
references: 11292125
references: AJR Am J Roentgenol. 1994 May;162(5):1057-62
references: 8165981
references: J Nucl Cardiol. 1999 Jan-Feb;6(1 Pt 1):20-8
references: 10070837
references: Eur J Nucl Med Mol Imaging. 2006 May;33(5):584-8
references: 16416329
references: Med Biol Eng Comput. 1985 Sep;23(5):411-7
references: 4068776
references: Phys Med Biol. 1996 Nov;41(11):2271-93
references: 8938026
references: J Nucl Med. 2009 May;50(5):674-81
references: 19372491
references: IEEE Trans Biomed Eng. 1992 Nov;39(11):1130-41
references: 1487276
references: Med Biol Eng. 1967 May;5(3):239-48
references: 6045783
references: J Nucl Med Technol. 2006 Dec;34(4):193-211; quiz 212-4
references: 17146108
references: Phys Med Biol. 2009 Dec 21;54(24):7345-62
references: 19926910
references: J Nucl Med. 1992 Aug;33(8):1566-71
references: 1634955
references: Physiol Meas. 2003 May;24(2):467-75
references: 12812430
references: Med Phys. 2007 Jul;34(7):3067-76
references: 17822014
references: Ann N Y Acad Sci. 1999 Apr 20;873:135-42
references: 10372161
references: Eur J Nucl Med Mol Imaging. 2010 Mar;37(3):505-16
references: 19789872
references: IEEE Trans Biomed Eng. 2010 Sep;57(9):2277-85
references: 20542759
references: IEEE Eng Med Biol Mag. 1989;8(1):50-2
references: 18238306
references: J Nucl Cardiol. 2009 May-Jun;16(3):396-404
references: 19159994
references: Eur J Intern Med. 2008 Oct;19(6):399-405
references: 18848172
references: IEEE Trans Biomed Eng. 1999 Sep;46(9):1150-60
references: 10493078
references: Circulation. 1970 Apr;41(4):651-8
references: 5437409
references: Circulation. 1950 Dec;2(6):811-21
references: 14783833
references: J Nucl Med Technol. 2004 Sep;32(3):158-63
references: 15347694
references: Ann Biomed Eng. 1998 Mar-Apr;26(2):260-7
references: 9525766