Td‐p‐023: Machine Learning on Digital Drawing Data for Preliminary Dementia Screening

Tsoi, Kelvin K.; Lam, Man Fai; Chu, Christopher; Wong, Michael; Meng, Huadong

doi:10.1016/j.jalz.2018.06.2039

Cited by 1 publication

(4 citation statements)

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“…The digital CDT uses a digital pen to draw on a tablet instead of drawing on a paper. Previous meta-analyses showed the diagnostic performance of paper-and-pencil CDT is fair in the screening of MCI, no matter the complexity of the scoring system (Ehreke et al, Pinto & Peters, 2009;Tsoi et al, 2017). This study showed similar results, however, the digital CDT showed better diagnostic performance than paper-and-pencil CDT in the screening of MCI.…”

Section: Discussionsupporting

confidence: 60%

Section: Discussionmentioning

confidence: 99%

“…Besides digital CDT, some other digital drawing tests have been suggested in the literature. The digital pentagon drawing test (Garre-Olmo et al, 2017 ; Tsoi et al, 2018 ) and digital ROCF (Cheah et al, 2019 ; Kokubo et al, 2018 ) are adapted from paper-and-pencil versions. The digital tree drawing test and digital house drawing test are adopted new approaches (Robens et al, 2019 ; Garre-Olmo et al, 2017 ).…”

Section: Discussionmentioning

confidence: 99%

“…There are different scoring methods of the CDT such as the 6-point scoring method (Shulman et al, 1986) and the 10-point scoring method (Sunderland et al, 1989). Studies indicate that the CDT is a good test for the screening of patients with dementia (Aprahamian et al, 2009;Park et al, 2018), but that MCI patient performance is fair and may overlook degenerative processes (Breton et al, 2019;Ehreke et al, 2010;Pinto & Peters, 2009;Tsoi et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Digital Drawing Tests and Paper-and-Pencil Drawing Tests for the Screening of Mild Cognitive Impairment and Dementia: A Systematic Review and Meta-analysis of Diagnostic Studies

et al. 2021

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Digital drawing tests have been proposed for cognitive screening over the past decade. However, the diagnostic performance is still to clarify. The objective of this study was to evaluate the diagnostic performance among different types of digital and paper-and-pencil drawing tests in the screening of mild cognitive impairment (MCI) and dementia. Diagnostic studies evaluating digital or paper-and-pencil drawing tests for the screening of MCI or dementia were identified from OVID databases, included Embase, MEDLINE, CINAHL, and PsycINFO. Studies evaluated any type of drawing tests for the screening of MCI or dementia and compared with healthy controls. This study was performed according to PRISMA and the guidelines proposed by the Cochrane Diagnostic Test Accuracy Working Group. A bivariate random-effects model was used to compare the diagnostic performance of these drawing tests and presented with a summary receiver-operating characteristic curve. The primary outcome was the diagnostic performance of clock drawing test (CDT). Other types of drawing tests were the secondary outcomes. A total of 90 studies with 22,567 participants were included. In the screening of MCI, the pooled sensitivity and specificity of the digital CDT was 0.86 (95% CI = 0.75 to 0.92) and 0.92 (95% CI = 0.69 to 0.98), respectively. For the paper-and-pencil CDT, the pooled sensitivity and specificity of brief scoring method was 0.63 (95% CI = 0.49 to 0.75) and 0.77 (95% CI = 0.68 to 0.84), and detailed scoring method was 0.63 (95% CI = 0.56 to 0.71) and 0.72 (95% CI = 0.65 to 0.78). In the screening of dementia, the pooled sensitivity and specificity of the digital CDT was 0.83 (95% CI = 0.72 to 0.90) and 0.87 (95% CI = 0.79 to 0.92). The performances of the digital and paper-and-pencil pentagon drawing tests were comparable in the screening of dementia. The digital CDT demonstrated better diagnostic performance than paper-and-pencil CDT for MCI. Other types of digital drawing tests showed comparable performance with paper-and-pencil formats. Therefore, digital drawing tests can be used as an alternative tool for the screening of MCI and dementia.

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Section: Discussionsupporting

confidence: 60%