J C Newell
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Explore the profile of J C Newell including associated specialties, affiliations and a list of published articles.
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87
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566
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Recent Articles
1.
Cheney M, Isaacson D, Newell J, Simske S, Goble J
Int J Imaging Syst Technol
. 2023 Mar;
2(2):66-75.
PMID: 36909677
The inverse conductivity problem is the mathematical problem that must be solved in order for electrical impedance tomography systems to be able to make images. Here we show how this...
2.
Muller P, Li T, Isaacson D, Newell J, Saulnier G, Kao T, et al.
Physiol Meas
. 2015 May;
36(6):1283-95.
PMID: 26006279
This is a methods paper, where an approximation to the local ventilation-perfusion ratio is derived. This approximation, called the ventilation-perfusion index since it is not exactly the physiological ventilation-perfusion ratio,...
3.
Muller P, Isaacson D, Newell J, Saulnier G
Physiol Meas
. 2013 May;
34(6):609-22.
PMID: 23719023
One possible application for electrical impedance tomography is in medical imaging where lung and heart function may be monitored. One drawback of current algorithms is that they are implemented for...
4.
Saulnier G, Liu N, Tamma C, Xia H, Kao T, Newell J, et al.
Annu Int Conf IEEE Eng Med Biol Soc
. 2007 Nov;
2007:4154-7.
PMID: 18002917
This paper describes Rensselaer's ACT 4 electrical impedance tomography system which has been developed for breast cancer detection. ACT 4 acquires electrical impedance data at a set of discrete frequencies...
5.
Kao T, Saulnier G, Xia H, Tamma C, Newell J, Isaacson D
Physiol Meas
. 2007 Aug;
28(7):S291-9.
PMID: 17664644
Electrical impedance tomography (EIT), a non-invasive technique used to image the electrical conductivity and permittivity within a body from measurements taken on the body's surface, could be used as an...
6.
Murphy E, Mueller J, Newell J
Physiol Meas
. 2007 Aug;
28(7):S101-14.
PMID: 17664628
The D-bar algorithm based on A Nachman's 2D global uniqueness proof for the inverse conductivity problem (Nachman 1996 Ann. Math. 143 71-96) is implemented on an elliptical domain. The scattering...
7.
Isaacson D, Mueller J, Newell J, Siltanen S
Physiol Meas
. 2006 Apr;
27(5):S43-50.
PMID: 16636419
A practical D-bar algorithm for reconstructing conductivity changes from EIT data taken on electrodes in a 2D geometry is described. The algorithm is based on the global uniqueness proof of...
8.
Kao T, Kim B, Isaacson D, Newell J, Saulnier G
Physiol Meas
. 2006 Apr;
27(5):S13-23.
PMID: 16636405
Electrical impedance tomography (EIT) is a non-invasive technique used to image the electrical conductivity and permittivity within a body from measurements taken on the body's surface. High-quality static images are...
9.
Kao T, Isaacson D, Newell J, Saulnier G
Physiol Meas
. 2006 Apr;
27(5):S1-11.
PMID: 16636401
A 3D reconstruction algorithm for electrical impedance tomography is presented for determining the distribution of electrical properties inside the body, given electrical measurements made on the surface. A linearized reconstruction...
10.
Ross A, Saulnier G, Newell J, Isaacson D
Physiol Meas
. 2003 Jun;
24(2):509-16.
PMID: 12812434
Questions regarding the feasibility of using electrical impedance tomography (EIT) to detect breast cancer may be answered by building a sufficiently precise multiple frequency EIT instrument. Current sources are desirable...