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. 2020 Jun 8;15(6):e0233958. doi: 10.1371/journal.pone.0233958

Fig 2. Ultrasound image analysis.

Fig 2

a) ultrasound image of the transverse arch; c) marking the lowest points of MS, LS, 2MTH, 3MTH, 4MTH, 5MTH and their plantar surface projections; d) TAH is red line; e) the height of the metatarsal heads in orange lines; f) SRA in orange angle; g) TAL in green line; h) the length between each metatarsal head in green lines; i) the total area under the metatarsal heads marked by blue lines; j) the area between each two metatarsal heads marked by dotted blue lines.