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Table 2 Cross-tabulation of quality assessment made by nuclear medicine technologists (first versus second acquisition)

From: When is reacquisition necessary due to high extra-cardiac uptake in myocardial perfusion scintigraphy?

First acquisition Second acquisition
  1 2 3 4 5 Total
1 54 90 114 68 51 377
2 72 265 345 193 173 1,048
3 8 34 88 98 84 312
4 1 4 6 19 40 70
5 1 0 2 6 84 93
Total 136 393 555 384 432 1,900
  1. Improvements in quality from first to second acquisition are to be found above the main diagonal (i.e., in the upper right corner of the table).