CHB-MIT Dataset

The CHB-MIT dataset also referred to as the PhysioNet EEG dataset,36 composed of a total of 24 pediatric patients’ EEG recordings that were was acquired at Boston Children’s Hospital. The patients suffered from intractable epilepsy, and the ages of the patients are between 1.5 years and 19 years. In the EEG data acquisition, the international 10-20 system of channel configuration with bipolar montage was used. The number of electrodes varies for different patients from 23 electrodes to 28 electrodes, whereas some electrodes were interchanged in some cases. The first 18 electrodes are similar for all of the patients. There are 198 total identified seizures and duration of the dataset is 916 hours. In the dataset, the epileptogenic source for the patients is not shown; though, the origins of epileptic sources were reported for each patient in another study conducted by Nasehi et al.37 In this dataset, the shortest seizure is 6 seconds long and

Table 4.2 Description of CHB-MIT dataset

Patient no.

Gender

Age (years)

Brain region of seizure origin

Seizures counts

1

Female

11

T

7

2

Male

11

F

3

3

Female

14

T

7

4

Male

22

T, O

4

5

Female

7

F

5

6

Female

1.5

T

10

7

Female

14.5

T

3

8

Male

3.5

T

5

9

Female

10

F

4

10

Male

3

T

7

11

Female

12

F

3

12

Female

2

F

40

13

Female

3

T, O

12

14

Female

9

T

8

15

Female

16

F, T

20

16

Female

7

T

10

17

Female

12

T

3

18

Female

18

T, O

6

19

Female

19

F

3

20

Female

6

T

8

21

Female

13

T

4

22

Female

9

T, O

3

23

Female

6

F

7

24

-

-

-

16

Total

198

F, frontal; O, occipital; T, temporal

the longest seizure duration is 752 seconds. The average seizure duration is 72 seconds. Detailed description of this dataset is given in Table 4.2. The file format of the EEG time series in this dataset is. edf.

European Epileptic Dataset

There are 30 patients EEG recordings in the European Epilepsy-Database. The ages of the patients are between 13 and 67 years. In EEG data collection, the recordings are done with a 19-channel system based on the international 10—20 system channel configuration with referential montage. There are 276 seizures identified in the total 4604 hours of EEG recordings in the dataset. A summary of this dataset is provided in Table 4.3. The EEG time series are saved in .edf file format.

Table 4.3 Description of European Epileptic dataset

Patient no.

Gender

Age of patients in years

No. of recorded seizures

1

Male

36

11

2

Female

46

8

3

Male

41

8

4

Female

67

5

5

Female

52

8

6

Male

65

8

7

Male

36

5

8

Male

26

22

9

Male

47

6

10

Male

44

11

11

Male

48

14

12

Male

28

9

13

Male

46

8

14

Female

62

6

15

Female

41

5

16

Female

15

6

17

Female

17

9

18

Male

47

7

19

Male

32

22

20

Male

47

7

21

Female

31

8

22

Male

38

7

23

Male

50

9

24

Female

54

10

25

Male

42

8

26

Male

13

9

27

Male

58

9

28

Female

35

9

29

Male

50

10

30

Female

16

12

Total seizures

276

 
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