Neuroradiology of Non-Alzheimer’s Disease Dementias

Full Article

YL Dai, K Wang, TCY Cheung, DLK Dai

Hong Kong J Radiol 2015;18:58-73

DOI: 10.12809/hkjr1414267

Dementia is an increasingly prevalent disease of the ageing population. Although Alzheimer’s disease is still the most common cause of dementia, there is emerging clinical interest in other, less common, causes of dementia that can affect patients at a younger age. Early diagnosis of these non-Alzheimer’s disease dementias is now possible with the aid of neuroimaging, including computed tomography and magnetic resonance imaging, as well as newer modalities such as magnetic resonance spectroscopy, diffusion tensor imaging, and single-photon emission computed tomography. The imaging features of some of the more common non-Alzheimer’s disease dementias will be discussed in this review in order to help clinicians and radiologists better diagnose these conditions.

 

中文摘要

非阿爾茨海默病癡呆症的神經放射學

戴毓玲、王琪、張智欣、戴樂群

 

隨着人口老化,老年癡呆症患者愈發普遍。雖然阿爾茨海默氏症仍然是老年癡呆症最常見的病因,但臨床對於更年輕患者的其他較少見的病因頗有興趣。神經影像技術有助於非阿爾茨海默氏病的癡呆症的早期診斷,包括電腦斷層掃描和磁共振成像,以及較新型的技術如磁共振波譜、彌散張量成像和單光子發射電腦斷層掃描。本文討論一些較常見的非阿爾茨海默病癡呆症的影像學特徵,以幫助臨床醫生和放射科醫生更好地診斷此類病症。