RESUMO
There is a growing interest in developing new biomarkers using digital devices. The primary purpose of digital biomarkers is to obtain features based on multi-dimensional data such as multiple data sources from various digital devices and time-series data reflecting temporal changes. Therefore, digital biomarkers can be used to measure the behavioral patterns of individuals in their daily lives in contrast to traditional biomarkers that reflect specific time points in clinical or laboratory settings. However, there are still several limitations including validation and interpretation. This article reviews the potential of digital biomarkers, explores previous studies on digital phenotypes related to Alzheimer’s disease, and discusses the future challenges of implementing digital biomarkers in the medical field.
RESUMO
The artery of Percheron (AOP) is an uncommon variant of the posterior cerebral artery that supplies blood to the paramedian thalamus and rostral midbrain. AOP is often difficult to recognize with intracranial magnetic resonance angiography due to its small size. Although a number of case reports of AOP occlusion have been published, cause of the occlusion is mostly unclear. We experienced a case of AOP occlusion which resulted in bilateral thalamic infarction. It was most likely caused by a microembolism through right-left shunt.