Phantom evaluation of a cardiac SPECT/VCT system that uses a common set of solid-state detectors for both emission and transmission scans
C Bai, R Conwell, J Kindem, H Babla, M Gurley… - Journal of Nuclear …, 2010 - Elsevier
Background We developed a cardiac SPECT system (X-ACT) with low dose volume CT
transmission-based attenuation correction (AC). Three solid-state detectors are configured to …
transmission-based attenuation correction (AC). Three solid-state detectors are configured to …
Prospective multicenter evaluation of rapid, gated SPECT myocardial perfusion upright imaging
…, C Bai, S Arram, P Maffetone, R Conwell - Journal of nuclear …, 2009 - Elsevier
Background A novel three-dimensional (3D) iterative image reconstruction method (3D-OSEM)
has been developed that in phantom studies yielded comparable image quality at one …
has been developed that in phantom studies yielded comparable image quality at one …
Development and evaluation of a new fully automatic motion detection and correction technique in cardiac SPECT imaging
C Bai, J Maddahi, J Kindem, R Conwell… - Journal of nuclear …, 2009 - Elsevier
Background In cardiac SPECT perfusion imaging, motion correction of the data is critical to
the minimization of motion introduced artifacts in the reconstructed images. Software-based (…
the minimization of motion introduced artifacts in the reconstructed images. Software-based (…
CsI (T1)/PIN solid state detectors for combined high resolution SPECT and CT imaging
J Kindem, C Bai, R Conwell - IEEE Nuclear Science …, 2010 - ieeexplore.ieee.org
We have developed a CsI(Tl)/PIN detector module for high resolution SPECT and low dose
photon-counting CT imaging. Using the detector modules with 6.1mm pixels, we built a …
photon-counting CT imaging. Using the detector modules with 6.1mm pixels, we built a …
Performance comparison of small GYGAG (Ce) and CsI (Tl) scintillators with PIN detectors
J Kindem, R Conwell, NJ Cherepy… - 2011 IEEE Nuclear …, 2011 - ieeexplore.ieee.org
Background: Thallium doped CsI(Tl) scintillators read out with PIN photodiodes have been
successfully used for high performance pixilated solid-state gamma cameras for cardiac …
successfully used for high performance pixilated solid-state gamma cameras for cardiac …
A novel cardiac SPECT system with X-ray-based attenuation correction using the same solid state detectors for both emission and transmission scans
R Conwell, J Kindem, C Bai, J Maddahi - 2008 - Soc Nuclear Med
256 Objectives: Radio-isotopic-source-based and CT-based approaches are the two standard
approaches for performing attenuation correction (AC) in cardiac SPECT. Drawbacks of …
approaches for performing attenuation correction (AC) in cardiac SPECT. Drawbacks of …
[BOOK][B] Retention by the US air force medical service corps and civilian healthcare executives: A generational study of the relationship of ethical values to …
RJ Conwell - 2009 - search.proquest.com
This study examines the aspect of retention of healthcare executives in both a military and
civilian environment and the relationship of ethical values to commitment in these respective …
civilian environment and the relationship of ethical values to commitment in these respective …
Evaluation of a cardiac SPECT system using a common set of solid-state detectors for both emission and transmission scans and a ultras-low dose lead x-ray …
…, H Babla, J Kindem, R Conwell - 2009 IEEE Nuclear …, 2009 - ieeexplore.ieee.org
We developed a new cardiac SPECT system (X-ACT) with a low dose volume CT
transmission-based attenuation correction (AC). Three solid-state detectors are configured to form a …
transmission-based attenuation correction (AC). Three solid-state detectors are configured to form a …
An operator-passive thoracic impedance approach for respiratory motion gating in myocardial perfusion SPECT
R Conwell, C Bai, J Kindem, H Babla… - 2011 IEEE Nuclear …, 2011 - ieeexplore.ieee.org
Respiratory motion gating (R-Gating) in SPECT myocardial perfusion imaging (MPI) usually
requires external devices and extra work of the technologist for patient setup. In this paper, …
requires external devices and extra work of the technologist for patient setup. In this paper, …
Can a single CT scan be used for both stress and rest attenuation correction in cardiac SPECT?
C Bai, R Conwell, R Old, J Maddahi - 2010 - Soc Nuclear Med
473 Objectives For cardiac perfusion imaging using PET/CT or SPECT/CT systems, separate
CT scans are performed associated with the stress and rest emission acquisitions to …
CT scans are performed associated with the stress and rest emission acquisitions to …