VIMS Cognitive Test Does Not Exist as a Standardized Assessment
There is no established cognitive screening tool called "VIMS" (Vascular Impairment Memory Screening) in the medical literature or clinical practice guidelines for vascular cognitive impairment. You may be confusing this with other validated assessments used for vascular cognitive impairment (VCI).
What You Should Actually Use
The NINDS-CSN (National Institute of Neurological Disorders and Stroke-Canadian Stroke Network) protocols are the endorsed standardized assessments for VCI, with three time-based options 1, 2:
5-Minute Protocol (Primary Care/Quick Screening)
- MoCA subtests:
- 5-Word Memory Task (registration, recall, recognition)
- 6-Item Orientation
- 1-Letter Phonemic Fluency
- Supplemental options: Animal Naming (semantic fluency), Trail Making Test 1
30-Minute Protocol (Clinical Screening)
Selected tests from the 60-minute battery, focusing on executive function and memory domains 1
60-Minute Protocol (Comprehensive Assessment)
Full neuropsychological battery covering:
- Executive/activation function
- Language
- Visuospatial abilities
- Memory
- Neurobehavioral changes and mood 1
Best Validated Screening Tool: Montreal Cognitive Assessment (MoCA)
The MoCA demonstrates superior performance for detecting VCI compared to other brief screening instruments 3:
- For vascular dementia: AUC >0.90, excellent accuracy differentiating from controls
- For vascular mild cognitive impairment: AUC 0.87-0.93
- Internal consistency: Cronbach's α 0.83-0.88
- Optimal cutoff: Score of 25 for differentiating VMCI from non-VMCI (sensitivity and specificity both 1.00) 4
Why MoCA Over MMSE
While the MMSE shows good accuracy (AUC 0.86-0.99) for vascular dementia, the MoCA is specifically designed to capture the executive dysfunction and processing speed deficits characteristic of VCI, which the MMSE often misses 1, 3.
Key Clinical Pitfalls
- Don't rely on MMSE alone: Patients with VCI can score 28+ on MMSE while having significant executive dysfunction 5
- Timed tests are critical: VCI characteristically causes slowed information processing, making timed executive function tests particularly sensitive 1
- Multiple domains must be assessed: VCI affects executive function, processing speed, working memory, and visuospatial skills—not just memory 1, 5
Alternative Emerging Tools
The Visual Cognitive Assessment Test (VCAT) shows promise as a language-neutral alternative, achieving perfect discrimination (AUC=1.0, sensitivity=1.0, specificity=0.991) at cutoff 27 for VMCI versus cognitively unimpaired, particularly valuable in multilingual populations 4.
The Brief Memory and Executive Test (BMET) also demonstrates excellent accuracy (AUC 0.94) for separating VMCI from controls 3.