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Table 12 Top 50 keywords from clinical reports for TCSZ, FNSZ, SPSZ, and CPSZ seizure types

From: Seizure classification with selected frequency bands and EEG montages: a Natural Language Processing approach

Rank TCSZ FNSZ SPSZ CPSZ
Word Frequency Word Frequency Word Frequency Word Frequency
1 Eeg 0.291 Eeg 0.306 Seizures 0.495 Seizures 0.318
2 Right 0.281 left 0.274 Activity 0.256 Eeg 0.311
3 Seizure 0.266 Right 0.253 Eeg 0.238 patient 0.29
4 Left 0.264 Activity 0.252 Left 0.238 Activity 0.24
5 Patient 0.231 Seizures 0.235 Hemisphere 0.19 Seizure 0.238
6 Activity 0.228 Patient 0.217 Patient 0.179 Left 0.228
7 Seizures 0.185 Seizure 0.197 Clinical 0.179 Right 0.22
8 Tonic 0.128 Clinical 0.158 Right 0.145 Clinical 0.166
9 Sleep 0.115 Slowing 0.132 Beta 0.114 Partial 0.165
10 Clonic 0.111 Temporal 0.13 Record 0.11 Complex 0.153
11 Hemisphere 0.11 Region 0.126 Section 0.107 Record 0.141
12 Clinical 0.109 Record 0.124 Sleep 0.102 Temporal 0.13
13 Record 0.109 Continuous 0.119 Temporal 0.085 10 0.112
14 Region 0.105 Background 0.107 Monitoring 0.085 Region 0.107
15 Background 0.105 10 0.107 10 0.085 Slowing 0.104
16 10 0.105 Sharp 0.106 Rhythmic 0.085 Sharp 0.09
17 Seen 0.099 Focal 0.106 Delta 0.085 Frequency 0.089
18 Sharp 0.099 Hemisphere 0.104 History 0.076 Video 0.086
19 Recording 0.096 Performed 0.099 Pattern 0.076 Background 0.083
20 Arm 0.095 Posterior 0.096 Video 0.076 Performed 0.083
21 Waves 0.092 Frequency 0.096 Performed 0.076 Hemisphere 0.08
22 Temporal 0.088 Waves 0.094 Recording 0.076 Status 0.078
23 Performed 0.086 Monitoring 0.086 0 0.076 20 0.075
24 20 0.082 Recording 0.085 Bursts 0.076 Continuous 0.074
25 History 0.079 Video 0.084 Central 0.076 Recording 0.071
Rank TCSZ FNSZ SPSZ CPSZ
Word Frequency Word Frequency Word Frequency Word Frequency
26 Amplitude 0.076 20 0.083 Occur 0.074 Monitoring 0.071
27 Slow 0.076 Diffuse 0.081 Shaking 0.074 Noted 0.07
28 Time 0.074 Noted 0.081 Region 0.068 Waves 0.068
29 Slowing 0.073 Electrodes 0.08 Seconds 0.068 Description 0.067
30 Anterior 0.07 Delta 0.079 Theta 0.068 Rhythmic 0.067
31 Rhythm 0.07 Status 0.077 20 0.068 Seen 0.066
32 Occipital 0.069 History 0.077 Noted 0.068 Electrode 0.064
33 Pattern 0.069 Description 0.076 Introduction 0.068 Epileptiform 0.063
34 Generalized 0.069 Pattern 0.076 Buzz 0.067 Posterior 0.063
35 Hz 0.069 Theta 0.076 Fast 0.066 Using 0.063
36 Artifact 0.066 Seen 0.075 30 0.066 Pattern 0.061
37 Electrode 0.066 Epileptiform 0.073 Characterized 0.066 History 0.061
38 Onset 0.062 Amplitude 0.073 Polyspike 0.059 ekg 0.06
39 Focal 0.062 Moderate 0.071 Description 0.059 Introduction 0.06
40 Ictal 0.06 Occipital 0.071 Impression 0.059 Impression 0.059
41 Electrodes 0.06 Abnormal 0.067 Duration 0.059 Theta 0.058
42 Wave 0.059 Medications 0.067 bpm 0.059 Placement 0.056
43 Monitoring 0.057 Sleep 0.063 Medications 0.059 Abnormal 0.056
44 Delta 0.056 Epilepticus 0.063 Epileptiform 0.057 Focal 0.056
45 Abnormal 0.056 ekg 0.063 Seizure 0.057 Slow 0.056
46 Posterior 0.056 Polymorphic 0.061 Service 0.054 Repetitive 0.055
47 Muscle 0.055 Rhythmic 0.06 Sections 0.053 Epilepticus 0.055
48 Epileptiform 0.055 Standard 0.06 24 0.053 Channel 0.055
49 Dominant 0.055 Electrode 0.057 Multiple 0.051 Medications 0.054
50 Voltage 0.053 Electrographic 0.057 hr 0.051 Digital 0.054