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Updated: Jul 15, 2026

Using Retinal Imaging to Study Dementia
Published on: November 6, 2017
Clinical diagnosis of vascular dementia
Ken Nagata1, Hirohiko Saito, Tomoyuki Ueno
1Department of Neurology, Research Institute for Brain and Blood Vessels, 6-10 Sesnshu-Kubota-Machi Akita 010-0874, Japan. nagata@akita-noken.go.jp
Insights
Vascular dementia (VaD) diagnosis needs updates, incorporating advanced imaging like SPECT. Recognizing mixed dementia, such as Alzheimer's disease with cerebrovascular disease (CVD), is crucial for accurate clinical assessment.
Area of Science:
- Neurology
- Neuroscience
- Geriatrics
Background:
- Vascular dementia (VaD) is a complex condition resulting from cerebrovascular disease (CVD).
- Current diagnostic criteria for VaD are over a decade old and require modernization.
- Existing diagnostic approaches often create a false dichotomy between VaD and Alzheimer's disease (AD).
Purpose of the Study:
- To highlight the need for updated diagnostic criteria for Vascular dementia (VaD).
- To emphasize the importance of integrating functional brain imaging, such as SPECT, into VaD diagnosis.
- To advocate for the inclusion of mixed dementia concepts, like "AD with CVD," in clinical practice.
Main Methods:
- Review of current diagnostic criteria for Vascular dementia (VaD).
- Discussion on the limitations of existing diagnostic dichotomies.
- Exploration of the potential role of functional neuroimaging (e.g., SPECT) in diagnosis.
Main Results:
- Current VaD diagnostic criteria are outdated.
- Functional brain imaging methods like SPECT can enhance diagnostic accuracy.
- The strict separation between AD and VaD is insufficient for many patients.
Conclusions:
- Diagnostic criteria for Vascular dementia (VaD) must be renovated.
- Functional neuroimaging should be integrated into the diagnostic process for VaD.
- Clinical diagnosis of VaD should incorporate the concept of mixed dementia, including "AD with CVD."
Abstract:
Vascular dementia (VaD) is a heterogeneous clinical entity based on various vascular pathophysiological processes underlying the subtypes of cerebrovascular disease (CVD). Several diagnostic criteria are currently being used for the clinical diagnosis of VaD, but they are mostly more than 10 years old and need to be renovated including the use of functional brain imaging methods such as single photon emission computerized tomography (SPECT). There is a limitation in the diagnosis based on the strict dichotomy between AD and VaD, and the concept of "AD with CVD" or "mixed dementia" should be included in the clinical diagnosis of VaD.
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