Similar clusters are positioned close to each other. The three colours show the post cluster classification based on simple wave propagation test on the class mean signals at each transducer. Pink = Full peristalsis, Green = 'Secondary peristalsis*', Blue = Non peristaltic.
*In this study there were no clear examples of ‘idealised secondary peristalsis’ clusters, i.e. peristalsis that originates in the oesophageal body. In practice 'Secondary peristalsis' should be considered as ‘non ideal primary peristalsis’, and was simply defined when there was no delta t between P1 and P2 wave maxima. Mostly, when there was some evidence of peristalsis distally (P2-P3), there was also evidence of initiation or pressure at P1 as can be evidenced from the clusters below.
primary = 1062
large - at least one > 20mmHg = 1062, small - all < 20mmHg = 0
secondary = 606
large - at least one > 20mmHg = 498, small - all < 20mmHg = 108
unclassified = 2983
large - at least one > 20mmHg = 0, small - all < 20mmHg = 2983
Class 1 - Follow link for full visualisation of cluster details
wave1std: 3.6789
wave2std: 5.1562
wave3std: 7.5327
wave1max: -15.4179
wave2max: 22.1478
wave3max: 42.6499
wave1min: -28.9441
wave2min: -3.0638
wave3min: 9.3985
wave1diff: 13.5262
wave2diff: 25.2116
wave3diff: 33.2513
clsize: 210
peristaltic: 'secondary'
size: 'size > 20mmHg'Class 2 - Follow link for full visualisation of cluster details
wave1std: 11.3836
wave2std: 15.9166
wave3std: 33.8120
wave1max: 10.5463
wave2max: 66.3876
wave3max: 119.2452
wave1min: -28.9210
wave2min: -4.3487
wave3min: -4.1052
wave1diff: 39.4672
wave2diff: 70.7363
wave3diff: 123.3504
clsize: 126
peristaltic: 'primary'
size: 'size > 20mmHg'Class 3 - Follow link for full visualisation of cluster details
wave1std: 10.5185
wave2std: 15.2065
wave3std: 26.8602
wave1max: 13.1594
wave2max: 65.7134
wave3max: 94.9451
wave1min: -24.7560
wave2min: -2.5326
wave3min: -5.4633
wave1diff: 37.9154
wave2diff: 68.2460
wave3diff: 100.4083
clsize: 273
peristaltic: 'primary'
size: 'size > 20mmHg'Class 4- Follow link for full visualisation of cluster details
wave1std: 10.1430
wave2std: 14.1286
wave3std: 20.0181
wave1max: 17.4283
wave2max: 64.1835
wave3max: 74.6738
wave1min: -20.9794
wave2min: -1.1772
wave3min: -6.5229
wave1diff: 38.4078
wave2diff: 65.3607
wave3diff: 81.1967
clsize: 175
peristaltic: 'primary'
size: 'size > 20mmHg'Class 5 - Follow link for full visualisation of cluster details
wave1std: 10.3903
wave2std: 16.3368
wave3std: 19.6431
wave1max: 20.2519
wave2max: 77.1919
wave3max: 76.1460
wave1min: -18.1258
wave2min: 2.8252
wave3min: -1.2056
wave1diff: 38.3776
wave2diff: 74.3666
wave3diff: 77.3516
clsize: 113
peristaltic: 'primary'
size: 'size > 20mmHg'Class 6 - Follow link for full visualisation of cluster details
wave1std: 10.0080
wave2std: 14.7534
wave3std: 17.8739
wave1max: 24.6322
wave2max: 76.2700
wave3max: 75.2891
wave1min: -11.7925
wave2min: 8.3894
wave3min: 8.1872
wave1diff: 36.4247
wave2diff: 67.8806
wave3diff: 67.1019
clsize: 210
peristaltic: 'primary'
size: 'size > 20mmHg'Class 7 - Follow link for full visualisation of cluster details
wave1std: 2.9208
wave2std: 3.2185
wave3std: 4.0821
wave1max: -15.4106
wave2max: 14.2254
wave3max: 13.1100
wave1min: -29.4146
wave2min: -3.4646
wave3min: -1.4755
wave1diff: 14.0041
wave2diff: 17.6900
wave3diff: 14.5855
clsize: 108
peristaltic: 'secondary'
size: 'all < 20mmHg'Class 8 - Follow link for full visualisation of cluster details
wave1std: 5.2385
wave2std: 7.1820
wave3std: 10.0846
wave1max: -7.1554
wave2max: 35.2775
wave3max: 32.2998
wave1min: -25.0931
wave2min: -2.5173
wave3min: -6.2019
wave1diff: 17.9377
wave2diff: 37.7948
wave3diff: 38.5017
clsize: 48
peristaltic: 'secondary'
size: 'size > 20mmHg'Class 9 - Follow link for full visualisation of cluster details
wave1std: 5.1275
wave2std: 7.1143
wave3std: 9.7492
wave1max: -2.3010
wave2max: 36.1353
wave3max: 37.4291
wave1min: -22.3857
wave2min: -0.3306
wave3min: -5.2762
wave1diff: 20.0847
wave2diff: 36.4659
wave3diff: 42.7053
clsize: 87
peristaltic: 'primary'
size: 'size > 20mmHg'Class 10 - Follow link for full visualisation of cluster details
wave1std: 4.3903
wave2std: 5.3826
wave3std: 7.2334
wave1max: -3.4132
wave2max: 29.5932
wave3max: 29.0549
wave1min: -20.1913
wave2min: 2.3112
wave3min: -2.3881
wave1diff: 16.7781
wave2diff: 27.2821
wave3diff: 31.4429
clsize: 78
peristaltic: 'primary'
size: 'size > 20mmHg'Class 11 - Follow link for full visualisation of cluster details
wave1std: 4.4899
wave2std: 5.5118
wave3std: 6.4853
wave1max: 2.7901
wave2max: 35.3567
wave3max: 28.2708
wave1min: -16.8210
wave2min: 4.6289
wave3min: 1.8311
wave1diff: 19.6111
wave2diff: 30.7278
wave3diff: 26.4396
clsize: 79
peristaltic: 'secondary'
size: 'size > 20mmHg'Class 12 - Follow link for full visualisation of cluster details
wave1std: 3.0425
wave2std: 4.4070
wave3std: 4.5578
wave1max: 5.0037
wave2max: 35.8371
wave3max: 29.1740
wave1min: -8.7802
wave2min: 11.3652
wave3min: 9.4411
wave1diff: 13.7839
wave2diff: 24.4719
wave3diff: 19.7329
clsize: 161
peristaltic: 'secondary'
size: 'size > 20mmHg'Class 13 - Follow link for full visualisation of cluster details
wave1std: 1.1942
wave2std: 1.4377
wave3std: 1.8140
wave1max: -22.1322
wave2max: 5.7952
wave3max: 0.6505
wave1min: -29.0822
wave2min: -2.8132
wave3min: -7.5662
wave1diff: 6.9500
wave2diff: 8.6085
wave3diff: 8.2167
clsize: 345
peristaltic: 'unclassified'
size: 'all < 20mmHg'Class 14 - Follow link for full visualisation of cluster details
wave1std: 2.7559
wave2std: 2.6364
wave3std: 2.4422
wave1max: -12.7269
wave2max: 15.4772
wave3max: 6.8995
wave1min: -25.3269
wave2min: -0.1323
wave3min: -5.5749
wave1diff: 12.6000
wave2diff: 15.6095
wave3diff: 12.4744
clsize: 39
peristaltic: 'unclassified'
size: 'all < 20mmHg'Class 15 - Follow link for full visualisation of cluster details
wave1std: 1.5122
wave2std: 1.7212
wave3std: 1.7661
wave1max: -16.2695
wave2max: 11.7976
wave3max: 8.2447
wave1min: -23.2526
wave2min: 2.4111
wave3min: 1.2447
wave1diff: 6.9831
wave2diff: 9.3865
wave3diff: 7.0000
clsize: 243
peristaltic: 'unclassified'
size: 'all < 20mmHg'Class 16 - Follow link for full visualisation of cluster details
wave1std: 1.0814
wave2std: 1.3981
wave3std: 1.4318
wave1max: -14.5333
wave2max: 13.1121
wave3max: 11.1544
wave1min: -19.5555
wave2min: 5.2001
wave3min: 4.7928
wave1diff: 5.0222
wave2diff: 7.9119
wave3diff: 6.3616
clsize: 180
peristaltic: 'unclassified'
size: 'all < 20mmHg'Class 17 - Follow link for full visualisation of cluster details
wave1std: 1.3794
wave2std: 2.4669
wave3std: 1.6398
wave1max: -8.8834
wave2max: 20.8516
wave3max: 13.3738
wave1min: -17.0601
wave2min: 6.8565
wave3min: 4.9895
wave1diff: 8.1767
wave2diff: 13.9951
wave3diff: 8.3843
clsize: 95
peristaltic: 'unclassified'
size: 'all < 20mmHg'Class 18 - Follow link for full visualisation of cluster details
wave1std: 1.0310
wave2std: 1.9428
wave3std: 1.1981
wave1max: -4.9438
wave2max: 23.8130
wave3max: 15.8163
wave1min: -12.7617
wave2min: 9.9841
wave3min: 7.6205
wave1diff: 7.8179
wave2diff: 13.8290
wave3diff: 8.1957
clsize: 128
peristaltic: 'unclassified'
size: 'all < 20mmHg'Class 19
wave1std: 1.1971
wave2std: 1.6697
wave3std: 1.3743
wave1max: -18.2076
wave2max: 7.0225
wave3max: -2.3766
wave1min: -24.4778
wave2min: -2.1231
wave3min: -8.5695
wave1diff: 6.2702
wave2diff: 9.1456
wave3diff: 6.1929
clsize: 310
peristaltic: 'unclassified'
size: 'all < 20mmHg'Class 20 - Follow link for full visualisation of cluster details
wave1std: 1.4127
wave2std: 2.0796
wave3std: 1.6653
wave1max: -13.3314
wave2max: 12.0204
wave3max: 1.3871
wave1min: -20.9273
wave2min: 0.1115
wave3min: -6.0195
wave1diff: 7.5959
wave2diff: 11.9089
wave3diff: 7.4066
clsize: 251
peristaltic: 'unclassified'
size: 'all < 20mmHg'Class 21
wave1std: 1.5769
wave2std: 1.8626
wave3std: 1.6541
wave1max: -10.0820
wave2max: 14.0494
wave3max: 5.6018
wave1min: -18.9624
wave2min: 3.0702
wave3min: -2.8529
wave1diff: 8.8804
wave2diff: 10.9792
wave3diff: 8.4546
clsize: 217
peristaltic: 'unclassified'
size: 'all < 20mmHg'Class 22 - Follow link for full visualisation of cluster details
wave1std: 1.0952
wave2std: 1.5007
wave3std: 1.4328
wave1max: -14.1009
wave2max: 13.3884
wave3max: 6.3506
wave1min: -19.0292
wave2min: 5.4637
wave3min: -0.0459
wave1diff: 4.9284
wave2diff: 7.9247
wave3diff: 6.3965
clsize: 394
peristaltic: 'unclassified'
size: 'all < 20mmHg'Class 23 - Follow link for full visualisation of cluster details
wave1std: 1.1137
wave2std: 1.4869
wave3std: 1.4090
wave1max: -12.1211
wave2max: 13.7014
wave3max: 6.9421
wave1min: -18.2681
wave2min: 5.9737
wave3min: 0.6328
wave1diff: 6.1470
wave2diff: 7.7277
wave3diff: 6.3092
clsize: 460
peristaltic: 'unclassified'
size: 'all < 20mmHg'Class 24 - Follow link for full visualisation of cluster details
wave1std: 1.0644
wave2std: 1.6029
wave3std: 1.0035
wave1max: -9.6359
wave2max: 16.7938
wave3max: 9.9508
wave1min: -16.3816
wave2min: 6.7887
wave3min: 4.0257
wave1diff: 6.7457
wave2diff: 10.0051
wave3diff: 5.9251
clsize: 321
peristaltic: 'unclassified'
size: 'all < 20mmHg'
Back to http://www.medeng.net