High-resolution visualization of tumours in rabbit lung using refraction contrast X-ray imaging

T. Sera, K. Uesugi, N. Yagi, K. Umetani, M. Kobatake, S. Imai

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11 Citations (Scopus)


Contrast enhancement by refraction was used to visualize tumours in the rabbit lung. VX2 tumour cells were intravenously injected into a rabbit. After 14 days the rabbit was euthanized and the lungs were imaged. Refraction-enhanced X-ray images were obtained with a sample-to-detector distance of 2.65-6 m. The beamline BL20B2 at the SPring-8 synchrotron radiation facility was used for the experiment, with a monochromatic X-ray beam with an energy of 33.2 keV. In the case of projection images, it was found that refraction did not help visualization of small tumours: the nodules did not show up with sharply defined edges. In tomography, tumours with a size of 1-10 mm were clearly visualized, together with blood vessels with a diameter down to 0.4 mm. These results show that refraction-enhanced imaging may be useful in human lung tomography to find small tumours.

Original languageEnglish
Pages (from-to)S54-S57
JournalEuropean Journal of Radiology
Issue number3 SUPPL.
Publication statusPublished - Dec 2008
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging


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