Purpose: Biological soft tissues encountered in clinical and preclinical imaging mainly
consists of atoms of light elements with low atomic numbers and their elemental composition …

Clinical radiography has traditionally been based on contrast obtained from absorption
when X-rays pass through the body. The contrast obtained from traditional radiography can …

Phase retrieval is the key to quantitative x-ray phase-contrast imaging. To retrieve the phase
image of an x-ray wave field, in general one needs multiple phase-contrast images. We …

Since the 1990s, the use of X-ray phase contrast has been extensively studied for imaging
weakly absorbing objects consisting of low-Z elements such as biological soft tissues and …

A general theoretical formulism for in-line phase x-ray imaging was presented with a
corresponding linear formula in previous works. In this report, an iterative approach is …

Purpose In the past decade, phase‐contrast imaging (PCI) has been applied to study
different kinds of tissues and human body parts, with an increased improvement of the …

Phase contrast imaging has been of growing interest in the biomedical field, since it
provides an enhanced contrast compared to attenuation-based imaging. Actually, the phase …

Ever since the first demonstration of phase contrast imaging (PCI) in the 1930s by Frits
Zernike, people have realized the significant advantage of phase contrast over conventional …

Numerous advances have been made in X-ray technology in recent years. X-ray imaging
plays an important role in the nondestructive exploration of the internal structures of objects …

A significant improvement over conventional attenuation-based X-ray imaging, which lacks
contrast in small objects and soft biological tissues, is obtained by introducing phase …