Split-filter dual-energy compared with single-energy CT results in similar objective image noise in addition to dual-energy capabilities at 17% lower radiation dose. Because of beam hardening, split-filter dual-energy can lead to decreased CNR values of iodinated structures.

No abstract

Stroke‐like migraine attacks after radiation therapy (SMART) is a syndrome observed in a delayed fashion in patients following brain radiation therapy. It is a rare but important differential diagnosis of migraine in these patients, often presenting with migraine‐like headache. In addition, there may be focal neurological deficits or seizures. In general, it is regarded as a reversible condition, therefore termed stroke‐like. Our case illustrates that there may also be ischemic stroke associated with SMART leading to an unfavorable course, even after prior remission.