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Celebrities. Emma Heming Willis on alert after death of Gene Hackman and wife Betsy amid Bruce Willis care Celebrities. Demi Moore suffered one of the most difficult blows of her career amid her ...

MRI 和 MRA 是颈部和 Willis 环有用的无创检查方法。研究人员报告了一名 36 岁女性出现的一种此前很少报道的有趣解剖变异，即椎动脉远端（V 4 段）和椎基底动脉连接处呈螺旋扭曲，并基于椎基底动脉系统的胚胎发育探讨了潜在的胚胎学可能性。

颅内动脉瘤不仅仅是一个简单的血管病变，它是人体血管系统极其精细和脆弱平衡的产物，代表了生理机制与病理过程的复杂博弈。

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the anatomy of the anterior and posterior circulation and the circle of Willis should be defined with a diagnostic aortic arch and four-vessel angiography or with magnetic resonance angiography.

Shumbayawonda et al. examine the impact of multi-parametric MRI in managing MASLD in a multinational randomised clinical trial. Findings show multi-parametric MRI is cost-effective, reduces ...