Fig. 3 | Scientific Reports

Fig. 3

From: Super-resolution ultrasound quantifying microvascular alterations for early detection of metastatic cervical lymph nodes: a prospective diagnostic study

Fig. 3The alternative text for this image may have been generated using AI.

Representative SRUS images of reactive and metastatic LNs. Reactive LNs (A–E): (A) 2D-mode image showing an oval-shaped node with preserved fatty hilum; (B) Density map illustrating homogeneous microvascular distribution; (C) Direction map demonstrating organized directional flow; (D) Bi-direction map with symmetric bidirectional flow; (E) Velocity map revealing relatively uniform and elevated flow velocities. Example: A 35-year-old female with reactive hyperplasia; VD: 0.46; Vel Entropy: 0.72). Metastatic LNs (F–J): (F) 2D-mode image showing an oval-shaped node with preserved fatty hilum; (G) Density map displaying heterogeneous microvascularity; (H) Direction map showing disorganized and chaotic flow directions; (I) Bi-direction map with asymmetric and irregular bidirectional flow; (J) Velocity map revealing heterogeneous and low-velocity flow. Example: A 52-year-old male with lung cancer metastasis; VD: 0.49; Vel Entropy: 0.95).

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