Demodulated IQ Ultrasound Data of Human Hand and Arm Tissue

This dataset includes both single-angle and multi-angle IQ ultrasound data acquired from the hand and forearm regions of human subjects using a Verasonics system. Each .mat file contains either single-angle (s) or multi-angle (m) acquisitions, denoted in the filename. Multi-angle files include 4800 frames across varying insonification angles, stored in shape (400, 2, 256, 256), capturing rich directional information useful for deep learning-based image enhancement and reconstruction. Single-angle files contain a single insonification view with the same spatial resolution, suitable for baseline comparison or conventional image formation. The dataset captures both in-phase (I) and quadrature (Q) components, enabling raw signal-level analysis prior to B-mode conversion. All data collection was approved by the IRB of Pusan National University (Protocol No. PNU-2025-001), and participants provided written informed consent.