Processing

- Check planar images in cinematic display for movement before starting processing (correct if present). Reconstruct with iterative rather than backprojection algorythm .
- Note LV size and any lung uptake. Attenuation due to breast tissue and diaphragm can also be detected in the planar cinematic display (1).
- Read perfusion slices on the computer screen and in printouts, using color scales or invert black and white. Review polar map images and quantification data. Idealy obtain all quantitative parameters with automatic processing and no operation intervention (2).
- Describe fixed and reversible defects. Assess amount of normal and viable tissue. It is useful for the cardiologist to inform in percentages the ischemic, necrotic and normal/viable tissue, using polar maps or eyeballing estimation (3).
- Analyze RWM and Calculate LVEF and LV volumes (Normal Values).

References:

1 Mut F. Diagnostico de la Enfermedad Coronaria and Gonzalez P et al. Viabilidad Miocardica, in Medicina Nuclear Aplicaciones Clínicas. Ignasi Carrio y Patricio González . Editorial Masson, Barcelona España, 2003, p 39-56 and 105-119, respectively.
2 Hesse B et al. EANM/ESC procedural guidelines for myocardial perfusion imaging in nuclear cardiology. Eur J Nucl Med Mol Imaging. 2005 Jul;32(7):855-97.
3 Gonzalez P, Massardo T, Coll C, Humeres P, Sierralta P, Jofre MJ Yovanovich J, Aramburú I, Brugere S, Chamorro H. “The predictive of 201 Tl rest-redistribution and 18F- fluordeoxiglucose SPECT for wall motion recovery after recent reperfused myocardial infarction”. Annals of Nuclear Medicine, vol 18, N°2, 2004, pags 97-103.
 

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