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Fig. 2 | BMC Medical Imaging

Fig. 2

From: Automated total and vessel-specific coronary artery calcium (CAC) quantification on chest CT: direct comparison with CAC scoring on non-contrast cardiac CT

Fig. 2

Comparison of the number of vessels with CAC between non-gated chest CT and ECG-gated cardiac CT. The patients with positive CAC are classified into 3 groups according to standard CAC scores on ECG-gated cardiac CT (A1:1–99,A2:100–299,A3: ≥ 300).Note that among patients of category A1, twenty-eight are falsely identified as N0 on chest CT. The color bar on the top indicates the category shifts of the number of involved vessels. (0 = correctly identification, 1 = 1vessel not identified, 2 = 2 vessels not identified, 3 = 3vessels not identified and 4 = 4 vessels are not identified)

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BMC Medical Imaging

ISSN: 1471-2342

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