Introduction: Despite clear guidelines provided by the SNM and the ASNC for acquisition parameters in myocardial perfusion SPECT, there is no universally accepted consensus on processing protocols for myocardial perfusion SPECT. Methodology: This study is the second part of a self administered, anonymous questionnaire of current procedures employed for myocardial perfusion SPECT across Australia. The sampling frame comprised 136 Nuclear Medicine departments across Australia including all departments accredited by the ANZSNM. Results: QGS is the quantitative software of choice in 58.9% (53/90) of departments (95% CI: 48.6% to 68.5%). Private clinics are 2.4 times more likely (RR) to use ECTb than other department types. Filtered backprojection is the reconstruction algorithm of choice in 71.7% (71/99) of departments (95% CI: 62.2% to 79.6%) while iterative reconstruction is employed in 16.2% (16/99) of departments (95% CI: 10.2% to 24.7%). Reconstruction is performed using 180° of data in 83.8% (83/99) of departments (95% CI: 75.3% to 89.8%) while 360° of data is reconstructed in 5.1% (5/99) of departments (95% CI: 2.2% to 11.3%). Pre filtering is employed in the reconstruction process in 58.0% (51/88) of departments (95% CI: 47.5% to 67.7%) while a post filter is employed in 39.8% (35/88) of departments (95% CI: 30.2% to 50.2%). Conclusion: There is evidence to suggest that there is widespread use of processing parameters that are either discordant where there are recommendations in the literature or counter-intuitive in the absence of documented guidelines. There is a requirement for investigation of the actual impact of these variations on the diagnostic utility of myocardial perfusion SPECT and a need for development of working guidelines for optimisation of processing protocols.
|Number of pages||4|
|Journal||ANZ Nuclear Medicine|
|Publication status||Published - Jun 2005|
- Myocardial perfusion SPECT
- Processing procedure