“…A slice of a rat cerebellum (Momose & Fukuda, 1995) and a human metastatic liver tumor (Takeda et al, 1995) were imaged and the various structures could be revealed. Phase-contrast X-ray computed tomography (Momose, 1995) has demonstrated rabbit cancer lesions (Momose et al, 1996a,b), rat brain (Beckmann et al, 1997(Beckmann et al, , 1999 and human cancer lesions Momose et al, 1999;Takeda et al, 1998;Takeda, Momose, Yu et al, 2000;Takeda, Momose, Hirano et al, 2000). However, the available view size has been limited to 5 mm  5 mm in the previous phase-contrast X-ray imaging system (Momose, Takeda, Itai, Yoneyama & Hirano, 1998) because of the small size of the monolithic X-ray interferometer.…”