Neuroangiography patterns of the middle cerebral artery: Study of 554 cerebral angiography results

Neuroangiography patterns and anomalies of middle cerebral artery: A systematic review

“…However, in the study by Al Fauzi et al, the percentage difference between bifurcation and trifurcation was not too large. [14] is is different from the other three studies [Table 3]. is difference may be caused by factors of race/ population and number of samples, as Al Fauzi et al used a larger sample size than the other three studies [Table 3].…”

“…Two researchers analyzed the risk of bias study using the Cochrane Collaboration's risk of bias tool and a quality assessment for observational studies based on the Newcastle-Ottawa tool according to the Cochrane Handbook for Systematic Reviews of Interventions Chapter, entitled "Assessing risk of bias in a nonrandomized study" [Tables 1 and 2] [Figure 1]. [5,9,10,12,[14][15][16][17]22,23,25,28,30,32] Management and data analysis A summary of the evidence used in data synthesis is presented in a summary form containing the characteristics of each study. Descriptive data are presented in the form of text and tables.…”

“…Cilliers, 2016 [10] MCA patterns and anomalies 20 Cadaver South Africa/White No explanation Al Fauzi, 2019 [14] MCA patterns and anomalies 554 Patient Indonesia/Asia Mean age 37, 3 years old Ogeng' o, 2011 [22] MCA patterns and anomalies 288 Patient Kenya/Black 21-90 years old Sadatomo, 2013 [23] MCA patterns 124 Patient Japan/Asia 20-81 years old Bayrak, 2011 [5] MCA anomalies 395 Patient Turkey/Europe 4-97 years old Chang, 2011 [9] MCA anomalies 1250 Patient Korea/Asia No explanation Sun, 2012 [25] MCA anomalies 4652 Patient China/Asia 23-73 years old Uchino, 2012 [28] MCA anomalies 3491 Patient Japan/Asia No explanation Hamidi, 2013 [16] MCA anomalies 500 Patient Turkey/Europe 2-91 years old Cooke, 2014 [12] MCA anomalies 10.927 Patient USA/White No explanation Kovac, 2014 [17] MCA anomalies 455 Patient Serbia/Europe Mean age 51 years old Van Rooij, 2015 [30] MCA anomalies 140 Patient Netherlands/Europe 27-84 years old included literature was good, as most studies clearly stated the patterns and variations/anomalies of MCA. e bias assessment according to ROBINS-I showed a generally low risk of bias.…”

“…Based on [Tables 2 and 4], the entire literature, regardless of racial characteristics and different sample sizes, had a very Cilliers, 2016 [10] 20 0 0 0 0 0 0 Al Fauzi, 2019 [14] 554 17 3 6 1 0 0 Ogeng' o, 2011 [22] 288 5 1.7 0 0 0 0 Bayrak, 2011 [5] 395 0 0 0 0 4 1 Chang, 2011 [9] 1250 9 0.7 0 0 0 0 Sun, 2012 [25] 4652 0 0 0 0 3 0.06 Uchino, 2012 [28] 3491 0 0 0 0 3 0.09 Hamidi, 2013 [16] 500 7 1.4 1 0.2 10 2 Cooke, 2014 [12] 10927 0 0 0 0 10 0.09 Kovac, 2014 [17] 455 0 0 0 0 1 0.2 Van Rooij, 2015 [30] 140 0 0 0 0 4 2.9 Total 22,627 38 0.17 low number of MCA variations/anomalies. However, Al Fauzi et al reported a greater number of duplicated MCAs than other studies, and Van Rooij et al described a higher number of fenestrated MCAs.…”