Open AccessApplication of synchrotron X‐ray imaging to phase objects in orthopedics
Author(s) -
Mori K.,
Sekine N.,
Sato H.,
Shimao D.,
Shiwaku H.,
Hyodo K.,
Sugiyama H.,
Ando M.,
Ohashi K.,
Koyama M.,
Nakajima Y.
Publication year - 2002
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049502004624
Subject(s) - synchrotron radiation , phase contrast imaging , synchrotron , radiography , materials science , phase contrast microscopy , optics , x ray , nuclear medicine , physics , radiology , medicine
Novel imaging of the fine structures of the ribs of a pig and a specimen of human osteosarcoma utilizing the spatial coherence of X‐rays was successfully performed with an incident X‐ray energy of 30 keV at SPring‐8, Japan. The image contrast appearing at the periphery of trabecular bone, small calcifications and small fractures is caused by the phase shift of the X‐rays at the boundary of these objects that have different X‐ray refractive indices. The image is recorded on mammography film without an intensifying screen. Comparison of the image contrast using different sample‐to‐film distances, Z , such as Z = 5 m and Z ≃ 0 m, showed that the former images were always more informative, i.e. better in resolution and/or image contrast when imaging trabecular bone, bone marrow and small fractures in compact bone, and for imaging cartilage. Radiography using synchrotron X‐rays for phase objects should be a powerful tool for diagnosis in orthopedics, especially for bone disease.