Table 3 Main findings related to the distribution of brain regions associated with dysarthria post-stroke

Ischemic Stroke

Variables

Relative frequency of dysarthria within studies for all subject (n = 909)

Subjects with dysarthria after lesions in multiple/isolated regions (n = 577)

Subjects with dysarthria after isolated lesions (n = 420)

Brain region

n/N (%)

n

n

Supratentorial involvement

n = 270

n = 235

n = 153

Motor cortex

20/20 (100)

20

20

Middle cerebral artery cortex

9/9 (100)

9

9

Internal capsule

18/18 (100)

18

18

Corona Radiata

105/140 (75)

105

104

Corona radiata and/or internal capsule

43/43 (100)

43

0

Striatocapsular area

38/38 (100)

38

0

Thalamus

1/1 (100)

1

1

Basal ganglia

1/1 (100)

1

1

Infratentorial involvement

n = 639

n = 342

n = 267

Cerebellum

96/208 (46.15)

96

64

Midbrain

28/48 (58.33)

28

28

Pons

183/230 (79.57)

183

142

Medulla oblongata

35/153 (22.88)

35

33

Hemorrhagic stroke

Variables

Relative frequency of dysarthria within studies for all subject (n = 241)

Subjects with dysarthria after lesions in multiple/isolated regions (n = 17)

Subjects with dysarthria after isolated lesions (n = 14)

Brain region

n

n

Supratentorial involvement

n = 241

n = 17

n = 14

Striatocapsular area

3/215 (1.39)

3

0

Basal ganglia

14/26 (53.85)

14

14