What question did this study set out to answer?

This study aims to determine how the integrity of the Circle of Willis affects blood flow changes after bypass surgery in patients with moyamoya disease.

July 10, 2026American Journal of NeuroradiologyOpen Access

The integrity of the Circle of Willis predicted hemodynamic changes after bypass surgery in Moyamoya disease: a prospective cohort study by 4D flow MRI

View Full Paper

Ask AI

Bookmark

Authors

YXYu XiUniversity of Electronic Science and Technology of China YWYuting WangWuhan Children's Hospital XFXiaojie FuShandong University

Discussion

Member takes

Implication

Prospective cohort study demonstrates that preoperative Circle of Willis integrity influences hemodynamic adaptation after bypass surgery in Moyamoya disease patients.

Key Points

This study aims to determine how the integrity of the Circle of Willis affects blood flow changes after bypass surgery in patients with moyamoya disease.
45 patients underwent preoperative 4D flow MRI assessments.
43 patients had short-term postoperative imaging at TP2 and 23 had late imaging at TP3.
Patients were classified by Circle of Willis completeness and longitudinal hemodynamic changes were analyzed.
In patients with incomplete CoW, bridge artery flow and mean velocity significantly decreased at TP3 (P=0.02, P=0.03).
Pulsatility index increased in incomplete CoW patients (P=0.03).
Operated-side internal carotid artery flow was significantly lower than the contralateral side (P<0.001).

Cite This Study

Xi et al. (2026) studied this question.

synapsesocial.com/papers/6a508e5b6eeac72a437a1386 https://doi.org/10.3174/ajnr.a9520

View Full Paper

Ask AI

Bookmark

Implication

Prospective cohort study demonstrates that preoperative Circle of Willis integrity influences hemodynamic adaptation after bypass surgery in Moyamoya disease patients.

The integrity of the Circle of Willis predicted hemodynamic changes after bypass surgery in Moyamoya disease: a prospective cohort study by 4D flow MRI

Discussion

Member takes

Implication

Key Points

Cite This Study

The integrity of the Circle of Willis predicted hemodynamic changes after bypass surgery in Moyamoya disease: a prospective cohort study by 4D flow MRI

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider