Small-vessel radiography in situ with monochromatic synchrotron radiation
| Autor: | S. Handa, Akihiko Yamakawa, K Hyodo, M Uddin-Mohammed, Y. Shinozaki, N Ishikawa, Etsuro Tanaka, Y. Tanaka, Y. Iwata, M Ando, K Umetani, T. Sekka, H. Ueki, H Hosaka, M. Kubota, T Yokoyama, K. Tanioka, Hidezo Mori, Hiroe Nakazawa |
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| Rok vydání: | 1996 |
| Předmět: |
Adult
Radiography Contrast Media Synchrotron radiation Dogs medicine.artery medicine Animals Humans Radiology Nuclear Medicine and imaging Pancreas Technology Radiologic Pancreatic duct medicine.diagnostic_test business.industry Angiography Vasa recta Anatomy Iopamidol medicine.anatomical_structure Perforating arteries Female Television Monochromatic color business Nuclear medicine Synchrotrons Circle of Willis |
| Zdroj: | Radiology. 201:173-177 |
| ISSN: | 1527-1315 0033-8419 |
| DOI: | 10.1148/radiology.201.1.8816540 |
| Popis: | To evaluate the usefulness of a radiographic system with monochromatic synchrotron radiation to depict small vessels and peripheral secretory ducts.Radiography of various organs was tested in 14 anesthetized dogs and pancreatography was performed in an excised human pancreas by using the following system: monochromatic synchrotron radiation with an energy level just above the k absorption edge of iodine as an x-ray source and a high-definition TV system with a high-light-sensitivity image pick-up tube camera coupled with a fluorescent screen as a detector.This system allowed depiction of small vessels (diameter50-100 microns) of the heart (penetrating transmural artery), brain (perforating arteries that arise directly in the circle of Willis), and intestinal organs (vasa recta and their submucosal communications) and of small branches (down to the fifth order) of the pancreatic duct.The synchrotron radiation system may be useful for evaluating microcirculatory disorders and early-stage malignant tumors in various human organs. |
| Databáze: | OpenAIRE |
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