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Table 6 The smallest allowable averaging area (SAAA) of εL estimates versus the limit of the MaxNEES

From: Evaluation of strain averaging area and strain estimation errors in a spheroidal left ventricular model using synthetic image data and speckle tracking

Seg V SAAA (mm2)
MaxNEES < 16.7% MaxNEES < 33% MaxNEES < 66%
17 F  > 278 278 77
P  > 278 139  < 3
13 F  < 3  < 3  < 3
P  < 3  < 3  < 3
7 F  < 3  < 3  < 3
P  < 3  < 3  < 3
1 F  > 278  < 3  < 3
P  < 3  < 3  < 3
  1. A2C projection. Notation: V.—View; F—Full; P—Part; <—indicates that SAAA is smaller than the minimal size of the subsegment used because the MaxNEES error is below the limit even in the case of parcellation on the smallest subsegments used; > —indicates that SAAA is bigger than the maximal size of the AHA segment used because the MaxNEES error is above the limit