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Table 2 Characteristics of basilar artery in LOPD and controls measured by TOF-MRA

From: Decreased outlet angle of the superior cerebellar artery as indicator for dolichoectasia in late onset Pompe disease

 

LOPD (n = 20)

controls (n = 40)

p-value ‡

Basilar artery characteristics

- Diameter (mm)

   

• proximal

• middle

• distal

3.5 ± 0.8

3.2 ± 1.2

3.2 ± 1.1

3.1 ± 1.0

2.4 ± 0.4

2.7 ± 0.6

p = 0.130

p = 0.0006

p = 0.013

- Anatomical length (mm)

34.0 ± 6.6

30.7 ± 5.2

p = 0.039

- Linear length (mm)

31.3 ± 3.7

29.1 ± 4.0

p = 0.051

- Volume (ml)

0.209 ± 0.164

0.113 ± 0.547

p = 0.0014

Smoker criteria [8]

- Abnormal lateral BA displacement (≥ grade 2)

1/20 (5%)

1/40 (2.5%)

p = 1.00

- Abnormal height of BA bifurcation (≥ grade 2)

12/20 (60%)

12/40 (30%)

p = 0.049

Other parameter

SUCA outlet angle (°)

127 ± 33a

156 ± 32

p = 0.0024

White matter lesions

12/19 (63%)b

27/40 (68%)

p = 0.77

  1. application of two sample t-test; a in one LOPD patient the BA bifurcation was such abnormal, that SUCA outlet angle was not measurable; b one LOPD patient had a CT