Morphologic Variations of End Trunks of M1 Segment of Middle Cerebral Artery

Reçi, Valvita

doi:10.24966/and-9608/100030

Cited by 2 publications

(7 citation statements)

References 4 publications

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“…The bifurcation is the most common branching pattern of MCA with minimum and maximum incidence in cadaveric studies reported to be 48% and 96.5% (Kadam et al, 2018;Reci, 2019), respectively. In cadavers from India, incidence varies from 64.7%-96.5% (Kadam et al, 2018;Gunnal et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…It is a less common variation and thus reported in few studies. Its incidence varies from 3% to 24% in cadavers (Eve et al, 2021;Reci, 2019). Presence of three or four final MCA trunks is referred as trifurcation or quadrifurcation (Reci, 2019) Incidence of trifurcation is 1.7% to 26.6% in cadaveric studies and 7.3% to 13.8% in angiographic studies (Kadam et al, 2018;Jeyakumar and Veerapandan, 2018;Sadatamo et al, 2013;Brzegowy et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Variations in branching pattern of middle cerebral artery using CT angiography in South Indian population

Sharma¹,

Verma²,

Adithan³

2023

EJA

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Middle cerebral artery (MCA) variants are rare compared to that of the other two cerebral arteries. Incidence of variations like duplication, fenestration, accessory vessel and early branching ranges from 0.17 to 4%. However, the literature describing MCA variations using CT Angiography (CTA) is limited, so this study was planned to determine the incidence of MCA branching pattern in Indian population using CTA. Datasets of CTA of 578 MCA from 289 patients (180 males and 109 females), with average age of 49.29±16.16 years (range of 11 to 85 years), from a tertiary care hospital were systematically reviewed for variations in branching pattern. Cases involving aneurysms and infarcts were excluded from the study. Four branching patterns of MCA were seen. Pattern I: single trunk in 0.17% (1/578) cases, on left side. Pattern II: early bifurcation in 0.52% (2/578) cases, two cases on right and one on left side. Pattern III: bifurcation, in 97.75%, (565/578) cases, 46.15% (6/13) cases on right and 53.84% (7/13) on left side. Pattern IV: trifurcation, in 1% (6/578), two cases on right and four on left side. Duplicated MCA seen in 0.34% (2/578) cases, both on the right side. The fenestration of MCA seen in 0.17% (1/578), on the left side. No case of accessory MCA was seen. Awareness of these anatomical variations in the branching pattern of MCA is valuable for clinicians and surgeons handling cases of intracranial aneurysms and infarcts. Thus, data from this study would help surgeons minimize errors and provide the best possible outcome to the patients

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Variations in branching pattern of middle cerebral artery using CT angiography in South Indian population

Sharma¹,

Verma²,

Adithan³

2023

EJA

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“…Based on the available literature, MCA morphology varies from straight to U-shaped [ 10 ]. Incidence of C-shaped and arch shaped MCA is 43.1% and 64%, respectively [ 2 , 11 ]. The superior plaques (21.7%) are more common in straight or U-shaped, whereas inferior plaques (39.9%) are common in inverted U-shaped or S-shaped arteries [ 10 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

“…An increased incidence of plaque formation and atherosclerosis is associated with tortuosity of vessel [ 9 ]. Analysis of vessel shape elucidates its tortuosity and is important for successful endovascular recanalization procedure [ 11 ]. In clinics, details about the shape of M1 segment carry great importance particularly at the time of neurointerventional procedures when maximum intensity projection images are viewed by 3D imaging.…”

Section: Introductionmentioning

confidence: 99%

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Morphology of middle cerebral artery using computed tomography angiographic study in a tertiary care hospital

2023

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Increased tortuosity of vessel is associated with high incidence of plaque formation leading to atherosclerosis. Surgical procedures are done after analyzing morphology of middle cerebral artery (MCA). However, literature describing MCA morphology using computed tomography angiography (CTA) is limited, so this study was planned to determine its incidence in Indian population. Datasets of CTA from 289 patients (180 males and 109 females), average age: 49.29±16.16 years (range: 11 to 85 years), from a tertiary care hospital were systematically reviewed for morphology of MCA. Cases involving aneurysms and infarcts were excluded. Four shapes of MCA were recognized: straight, U, inverted U, and S-shaped. MCA was straight in 44% (254/578), U-shaped in 37% (215/578), S shaped in 15% (89/578) and inverted U-shaped in 3% (20/578) cases. In males, MCA was straight in 46% (166/360), U-shaped in 37% (134/360), S-shaped in 16% (58/360) and inverted U-shaped in 4% (14/360) cases. In females, MCA was straight in 42% cases (92/218), U-shaped in 37% (81/218), S-shaped in 17% (36/218) and inverted U-shaped in 4% (9/218). On comparing shape with various age groups using chi square test, U shaped (P≤0.001) and S-shaped (P=0.003) MCA were found to be statistically significant. The incidence of straight shape was higher in advanced age group (>60 years). Knowledge of MCA shape will be useful for clinicians and surgeons in successful endovascular recanalization. Also, this data would help surgeons during neurointerventional procedures.

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Morphologic Variations of End Trunks of M1 Segment of Middle Cerebral Artery

Cited by 2 publications

References 4 publications

Variations in branching pattern of middle cerebral artery using CT angiography in South Indian population

Variations in branching pattern of middle cerebral artery using CT angiography in South Indian population

Morphology of middle cerebral artery using computed tomography angiographic study in a tertiary care hospital

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