Ultrasound-enhanced Unet model for quantitative photoacoustic tomography of ovarian lesions

Yun Zou, Washington University in St. Louis
Eghbal Amidi, Washington University in St. Louis
Hongbo Luo, Washington University in St. Louis
Quing Zhu, Washington University School of Medicine in St. Louis

Abstract

Quantitative photoacoustic tomography (QPAT) is a valuable tool in characterizing ovarian lesions for accurate diagnosis. However, accurately reconstructing a lesion's optical absorption distributions from photoacoustic signals measured with multiple wavelengths is challenging because it involves an ill-posed inverse problem with three unknowns: the Grüneisen parameter