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Table 2 Comparison of regional left atrial wall thickness and 12 previously reported studies

From: Accuracy and clinical feasibility of 3D-myocardial thickness map measured by cardiac computed tomogram

 

LA overall

Anterior wall

Septum

LA Appendage

Left lateral isthmus area

Posterior wall

Posterior inferior wall

Right antral area

Left antral area

Histology-based LAWT

         

 Hall et al. [8] (n = 34)

–

1.86 ± 0.59

2.20 ± 0.82

–

1.60 ± 0.48

1.06 ± 0.49

1.40 ± 0.46

–

–

 Platonov et al. [15] (n = 59)

–

–

–

–

–

2.60 ± 1.00

–

–

–

 Yen Ho et al. [17] (n = 26)

–

3.30 ± 1.20

4.50 ± 0.60

–

3.90 ± 0.70

–

4.10 ± 0.70

–

–

CT image-based LAWT

         

 Imada et al. [11] (n = 17)

–

2.60

–

–

–

–

–

–

–

 Hoffmeister et al. [10] (n = 42)

2.40 ± 0.50

–

–

–

–

–

–

–

–

 Pan et al. [14] (n = 57)

–

2.50 ± 0.70

–

–

–

1.50 ± 0.30

–

–

–

 Nakamura et al. [13] (n = 62)

2.40 ± 0.20

–

–

–

–

–

–

–

–

 Dewland et al. [7] (n = 98)

0.70

–

–

–

–

–

–

–

–

 Beinart et al. [6] (n = 64)

–

–

–

–

2.10 ± 0.63i

1.43 ± 0.44ii

1.81 ± 0.44iii

–

–

 Hayashi et al. [9] (n = 17)

–

–

–

–

2.38 ± 0.36iv

1.44 ± 0.17v

1.64 ± 0.25vi

–

–

 Takahashi et al. [16] (n = 50)

–

1.65 ± 0.44

1.17 ± 0.29

1.14 ± 0.40

–

1.61 ± 0.31

–

0.66 ± 0.12vii

0.65 ± 0.16viii

 Inoue et al. [12] (n = 86)

1.50 ± 0.50

–

–

–

–

–

1.60 ± 0.50ix

1.60 ± 0.50x

1.40 ± 0.50xi

AMBER-based LAWT

         

Overall 120 patients

         

 Bipolar Voltage, mV

1.96 ± 0.70

1.73 ± 0.81

1.65 ± 0.67

2.51 ± 1.10

1.49 ± 0.86

2.22 ± 1.13

1.84 ± 0.81

–

–

 LAWT, mm

2.10 ± 0.36

2.08 ± 0.36

2.67 ± 0.50

2.30 ± 0.39

2.57 ± 0.58

2.40 ± 0.67

1.80 ± 0.42

2.01 ± 0.47

2.40 ± 0.59

PeAF (n = 69)

         

 Bipolar Voltage, mV

1.93 ± 0.72

1.76 ± 0.86

1.61 ± 0.68

2.49 ± 1.13

1.49 ± 0.88

2.15 ± 1.06

1.70 ± 0.83

–

–

 LAWT, mm

2.12 ± 0.37

2.10 ± 0.38

2.67 ± 0.50

2.33 ± 0.42

2.59 ± 0.61

2.42 ± 0.69

1.78 ± 0.38

1.98 ± 0.48

2.39 ± 0.57

PeAF & PAF (n = 38)

         

 Bipolar Voltage, mV

2.01 ± 0.65

1.69 ± 0.75

1.72 ± 0.64

2.53 ± 0.99

1.46 ± 0.83

2.38 ± 1.18

2.05 ± 0.75

–

–

 LAWT, mm

2.06 ± 0.36

2.04 ± 0.36

2.65 ± 0.47

2.23 ± 0.35

2.51 ± 0.57

2.32 ± 0.67

1.81 ± 0.47

2.05 ± 0.48

2.40 ± 0.64

PAF (n = 9)

         

 Bipolar Voltage, mV

2.08 ± 0.69

1.79 ± 0.58

1.84 ± 0.69

2.73 ± 1.23

1.41 ± 0.72

2.46 ± 1.37

1.99 ± 0.70

–

–

 LAWT, mm

2.21 ± 0.21

2.24 ± 0.18

2.88 ± 0.46

2.41 ± 0.21

2.74 ± 0.35

2.58 ± 0.53

2.09 ± 0.33

2.03 ± 0.31

2.62 ± 0.44

  1. LA, left atrium; CT, computed tomography; LAWT, left atrial wall thickness; AF, atrial fibrillation; PeAF, persistent atrial fibrillation; PAF, paroxysmal atrial fibrillation
  2. In the previous study, if the region was divided into sub-regions, a similar region was selected. The selected regions are as follows: (i) Left lateral ridge; (ii) Middle-superior posterior; (iii) Middle floor; (iv) Mitral Isthmus; (v) Middle Posterior; (vi) Middle floor; (vii) Posterior right superior PV-LA junction; (viii) Anterior left superior; PV-LA junction; (ix) Right floor; (x) right low anterior PV antrum; (xi) Left low anterior PV antrum