Fig. 4 | Scientific Reports

Fig. 4

From: Dual-modal photoacoustic and ultrasound imaging for early diagnosis of ovarian torsion and evaluation of long-term tissue hypoxia

Fig. 4

PAI of sO₂ in early OT models. (a) Ultrasound grayscale images and corresponding sO₂ maps for the normal group, partial torsion group (180°), and complete torsion group (360°), captured before torsion (0 h) and at 2, 4, and 6 h post-torsion. The ovarian region is delineated by dashed lines. (b-d) Quantitative line graphs depicting relative sO₂ levels for the normal group, 180° (partial torsion) group, and 360° (complete torsion) group at each time point. Scale bar: 1 mm. *Indicates statistically significant differences compared to the 0-hour time point (P  < 0.05).

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