Anatomical Variations of the Circulus Arteriosus in Cadaveric Human Brains

Table 5

Comparison of morphological variations in percentage.

Variation type	Present study	Kapoor et al. [17]	Alpers et al. [12]	Fawcett and Blachford [18]	Hasebe and Adachi [19]
Complete classical CW	60	—	52.3	11	73
Incomplete CW	10.66	3.2	0.6	—	—
CW gross variations	40	54.8	—	—	—
ACoA	40	—	—	—	—
A1	14	—	—	—	—
PCoA	50	—	—	—	—
P1	14	—	—	—	—