The purpose of this study is to compare clinical efficiency and patient outcomes using ultra low-dose stress only Tc-99m and solid-state SPECT versus traditional Anger SPECT.
Study Type
OBSERVATIONAL
Enrollment
500
Saint Luke's Cardiovascular Imaging Center
Kansas City, Missouri, United States
Saint Luke's North Cardiovascular Imaging Center
Kansas City, Missouri, United States
Saint Luke's East Cardiovascular Imaging Center
Lee's Summit, Missouri, United States
Diagnostic Failure
Diagnostic failure is defined by a composite of need for additional downstream testing (anger SPECT, MPI PET, stress echocardiography or coronary CT angiography) within 30 days or a coronary angiogram with no stenoses greater than or equal to 50% severity using quantitative coronary angiography.
Time frame: 30 days
Necessity to proceed to a rest image
The first of 4 secondary end-points is the need to proceed to a rest image.
Time frame: 30 days
Necessity for additional downstream testing
The second of four secondary endpoints the need for additional downstream testing within 30 days to address the same clincial reason for the innitial referral for stress-onoly imaging, in the absence of any changes in clincial status between tests.
Time frame: 30 days
Coronary Angiography
The third of four secondary end-points is the occurrence of coronary angiography with no stenoses greater than or equal to 50% severity using quantitative coronary angiography.
Time frame: 60 to 90 days
Determine optimal performance of the Spectrum Dynamics camera system for stress only imaging
The fourth of four secondary endpoints is to determine optimal performance of the Spectrum Dynamics camera system for stress only imaging: upright imaging alone, supine imaging alone, or both in terms of primary and secondary endpoints
Time frame: 60 to 90 days
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