Magnification Radiography
(Sprache: Englisch)
If the early stages of a disease begin with the involvement of a small area of cells or tissue, the early diagnosis of pathologic changes by means of radio graphy should concentrate first on the detection of such minute changes. The ideal solution would be...
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Klappentext zu „Magnification Radiography “
If the early stages of a disease begin with the involvement of a small area of cells or tissue, the early diagnosis of pathologic changes by means of radio graphy should concentrate first on the detection of such minute changes. The ideal solution would be to produce X-ray images of findings much finer than those observable by the naked eye, and herein lies a new field of research that is believed to be worth developing. The introduction of a 0.3 mm focal-spot rotating-anode tube about 25 years ago opened the way to the clinical application of magnification radiography. Due to the postwar economic situation, we were unable to import this type of X-ray tube, but we believed in the importance of magnification radiography in X-ray diagnosis, and in 1952 we produced an X-ray tube with a 0.15 mm focal spot by reconstructing an existing fixed-anode tube. This X-ray tube has been improved step by step, so that tubes with focal spots of 0.1 mm or 0.05 mm are now available in Japan. Thus it has become possible to obtain 4 to 6 x magnification images of minute lesions that could not be imaged by normal roentgenography.
Inhaltsverzeichnis zu „Magnification Radiography “
I. Principles of Magnification Radiography.- A. Magnification Radiography in General.- B. Historical Review.- C. X-Ray Tube.- D. Specific Effects in Magnification Radiography.- E. Image Quality.- F. Radiation Protection of the Patient.- II. Technique of Magnification Radiography in Clinical Practice.- A. Equipment for High-Magnification Radiography.- B. Accessories for Magnification Radiography Unit.- C. Positioning.- D. Magnification Ratio.- E. Adequate Field Size.- F. Test Marker.- G. Exposure Factors.- H. X-Ray Television Magnification Fluoroscopy.- III. Clinical Significance of Magnification Radiography.- A. Magnification Radiography Conducted with Small Focal-Spot Tubes.- B. Magnification Radiography without Administration of Contrast Media.- C. Magnification Radiography with Administration of Contrast Media.- D. Magnification Radiography of Vessels.- References.
Bibliographische Angaben
- Autoren: A. S. Takahashi , S. Sakuma
- 2012, Softcover reprint of the original 1st ed. 1975, X, 112 Seiten, 59 Abbildungen, Maße: 28 cm, Kartoniert (TB), Englisch
- Verlag: Springer, Berlin
- ISBN-10: 364266122X
- ISBN-13: 9783642661228
Sprache:
Englisch
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