Three-Dimensional Human Cardiac Tissue Engineered by Centrifugation of Stacked Cell Sheets and Cross-Sectional Observation of Its Synchronous Beatings by Optical Coherence Tomography

Table 1

Specifications of two OCT systems.

OCT system	Cutting (slice) direction	Area	Resolution	Observation
Proto 3(DT)	Vertical	Horizontal: 14 × 14 mm; Vertical: 2.3 mm	Horizontal: 20 μm; Vertical: 9 μm	Attachment between human; cardiac cell sheets (Figure 2)
IVS-2000		Horizontal: 6.5 × 6.5 mm; Vertical: 3.9 mm	Horizontal: 8.7 μm; Vertical: 8.7 μm	Beatings of human cardiac cell sheets; (Figures 3–5 and; Supplementary Movies 2–4)